Electronic equipment and audio playing control method for electronic equipment

Abstract

The embodiment of the invention discloses an electronic device and an audio playing control method for the electronic device, and the structure of the electronic device is set to be that when a screen rotates, the position of a first microphone, the position of a second microphone and the position of at least one loudspeaker in a loudspeaker array are changed, so that when the screen rotates to different postures, the position of the first microphone and the position of at least one loudspeaker in the loudspeaker array are changed. The sound fields of the positions of the first microphone and the second microphone are different, so that the current posture of the screen can be determined according to the first sound signal generated by the sound picked up by the first microphone and the second sound signal generated by the sound picked up by the second microphone. Furthermore, according to the current posture of the screen, the corresponding left channel loudspeaker and the corresponding right channel loudspeaker are determined in the plurality of screen loudspeakers, so that the electronic equipment can automatically adjust the loudspeakers playing the left channel audio information and the right channel audio information when the screen is operated by the user to rotate, and the user experience is improved. And the electronic equipment is ensured to have a good stereo effect when the screen is in different postures.

Description

Technical Field

[0001] The present invention relates to the field of electronic technology, and more particularly to an electronic device and an audio playback control method for the electronic device. Background Art

[0002] As users' demands for audio-visual experience increase, more and more electronic devices are equipped with two or more speakers to create a three-dimensional sound field. Currently, electronic devices such as smart screen products on the market have speakers fixed on the screen device. The common way to create stereo sound for such products is to set two sets of speakers on the screen device, and create stereo sound by controlling each set of speakers to play fixed-channel audio. In order to meet the needs of users, some electronic devices can rotate the screen to switch between landscape and portrait. However, when the screen is rotated, the audio output of the speaker cannot automatically adjust with the screen. For example, when the screen switches from landscape to portrait, the left channel outputs sound upward and the right channel outputs sound downward, or the left channel outputs sound downward and the right channel outputs sound upward, which has a negative impact on the user experience. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides an electronic device and an audio playback control method for the electronic device, which is conducive to solving at least part of the above problems existing in the prior art.

[0004] In a first aspect, an embodiment of the present invention provides an electronic device, comprising: a support component; a screen, connected to the support component in a manner that can rotate around a first rotation axis, the first rotation axis being perpendicular to the screen; a speaker array, comprising a plurality of speakers, the plurality of speakers including a plurality of screen speakers, the screen speakers being arranged on the screen and offset from the first rotation axis; a microphone group, comprising a first microphone and a second microphone, the first microphone and the second microphone being arranged at intervals and offset from the first rotation axis; and a control circuit, electrically connected to the screen, the speakers and the microphone group; wherein when the screen rotates around the first rotation axis, the relative position of at least one of the speakers to the first microphone and the second microphone changes; and the control circuit is configured to: The method comprises the steps of: determining audio information of multiple channels according to information, wherein the audio information of the multiple channels includes left channel audio information and right channel audio information; obtaining a first sound signal generated by sound picked up by a first microphone and a second sound signal generated by sound picked up by a second microphone when the speaker array plays audio; determining a current posture of the screen according to the first sound signal and the second sound signal; determining the screen speaker located on the left side of a reference plane as a left channel speaker, and determining the screen speaker located on the right side of the reference plane as a right channel speaker according to the current posture of the screen, wherein the reference plane is a vertical plane of the screen passing through the first rotating axis; and controlling the left channel speaker to play the left channel audio information, and controlling the right channel speaker to play the right channel audio information.

[0005] Furthermore, the first microphone and the second microphone are arranged on the screen, the speaker array includes at least one center speaker, and the center speaker is arranged on the supporting assembly and located on the reference plane; when the screen rotates relative to the supporting assembly, the distance between the center speaker and the first microphone and the second microphone changes; the audio information of the multiple channels also includes center audio information, and the control circuit is further configured to control the center speaker to play the center audio information.

[0006] Furthermore, a frequency band of the center audio information is at least partially staggered from a frequency band of the left channel audio information, and a frequency band of the center audio information is at least partially staggered from a frequency band of the right channel audio information.

[0007] Furthermore, when the screen is in at least one posture, the position of the first microphone and the position of the second microphone are mirror-symmetric about the reference plane; determining the current posture of the screen based on the first sound signal and the second sound signal includes: determining the current posture of the screen based on a first level difference, wherein the first level difference is the level difference between the first sound signal and the second sound signal in the frequency band of the center audio information.

[0008] Further, the screen includes two relatively long sides and two relatively short sides, and the first microphone and the second microphone are arranged on one of the long sides; the current posture of the screen includes a horizontal screen posture and a vertical screen posture, and when the current posture of the screen is the horizontal screen posture, the position of the first microphone and the position of the second microphone are mirror-symmetrical about the reference plane, the first microphone is arranged on the left side of the reference plane, and the second microphone is arranged on the right side of the reference plane; determining the current posture of the screen according to the first sound signal and the second sound signal includes: determining the change state of the screen according to the level changes of the first sound signal and the second sound signal, and the change state of the screen includes horizontal screen to vertical screen and vertical screen to horizontal screen; and determining the current posture of the screen according to at least one of a first level difference and the change state of the screen, wherein the first level difference is the level difference between the first sound signal and the second sound signal in the frequency band of the center audio information.

[0009] Further, the vertical screen posture includes a left-turn vertical screen posture and a right-turn vertical screen posture, and the control circuit is configured to: when the first level difference is equal to the reference level difference or the change state of the screen is from vertical screen to horizontal screen, determine that the current posture of the screen is the horizontal screen posture; when the first level difference is greater than the reference level difference and the change state of the screen is from horizontal screen to vertical screen, determine that the current posture of the screen is the right-turn vertical screen posture; and when the first level difference is less than the reference level difference and the change state of the screen is from horizontal screen to vertical screen, determine that the current posture of the screen is the left-turn vertical screen posture.

[0010] Furthermore, determining the change state of the screen according to the level change of the first sound signal and the second sound signal includes: recording the levels of the first sound signal and the second sound signal when the electronic device is turned on as reference levels; when the current levels of the first sound signal and the second sound signal are less than the reference level, determining that the change state of the screen is from landscape to portrait, and updating the reference level to the current level; and when the levels of the first sound signal and the second sound signal are greater than the reference level, determining that the change state of the screen is from portrait to landscape, and updating the reference level to the current level.

[0011] Furthermore, the support assembly includes a base and a support rod, the support rod is arranged on the base, the center speaker is arranged on the top of the support rod, and the screen is connected to the support rod.

[0012] Furthermore, the speaker array includes at least one bottom speaker, the bottom speaker is arranged on the base, the audio information of the multiple channels also includes bottom audio information, and the control circuit is further configured to control the bottom speaker to play the bottom audio information; the frequency band of the bottom audio information is lower than the frequency band of the left channel audio information, the frequency band of the right channel audio information and the frequency band of the center audio information.

[0013] Furthermore, the screen has a first mirror symmetry plane and a second mirror symmetry plane, the first mirror symmetry plane is orthogonal to the second mirror symmetry plane, and the first rotation axis coincides with the intersection of the first mirror symmetry plane and the second mirror symmetry plane; the first mirror symmetry plane and the second mirror symmetry plane define four quadrant areas of the screen, the four quadrant areas are respectively the first quadrant area, the second quadrant area, the third quadrant area and the fourth quadrant area, and each quadrant area is provided with at least one screen speaker; the current posture of the screen includes a horizontal screen posture and a vertical screen posture, when the current posture of the screen is the horizontal screen posture, the first mirror symmetry plane coincides with the reference plane, the first quadrant area and the second quadrant area are located on the right side of the reference plane, the third quadrant area and the fourth quadrant area are located on the left side of the reference plane, the first quadrant area is located above the second quadrant area, and the fourth quadrant area is located above the reference plane; when the current posture of the screen is the vertical screen posture, the second mirror symmetry plane coincides with the reference plane.

[0014] Further, the screen has a first mirror symmetry plane and a second mirror symmetry plane, the first mirror symmetry plane is orthogonal to the second mirror symmetry plane, the first rotation axis coincides with the intersection of the first mirror symmetry plane and the second mirror symmetry plane, and the current posture of the screen includes a horizontal screen posture and a vertical screen posture; when the current posture of the screen is a horizontal screen posture, the first mirror symmetry plane coincides with the reference plane; when the current posture of the screen is a vertical screen posture, the second mirror symmetry plane coincides with the reference plane; the multiple screen speakers include a first screen speaker, a second screen speaker, a third screen speaker and a fourth screen speaker, the first screen speaker and the second screen speaker are arranged on the first mirror symmetry plane and are respectively arranged on both sides of the second mirror symmetry plane, the third screen speaker and the fourth screen speaker are arranged on the second mirror symmetry plane and are respectively arranged on both sides of the first mirror symmetry plane.

[0015] In a second aspect, an embodiment of the present invention further provides an audio playback control method for an electronic device, the method comprising the following steps: determining audio information of multiple channels based on audio information to be played, the audio information of the multiple channels including left channel audio information and right channel audio information; when the speaker array of the electronic device plays audio, obtaining a first sound signal generated by a first microphone picking up sound and a second sound signal generated by a second microphone picking up sound; determining a current posture of the screen based on the first sound signal and the second sound signal; based on the current posture of the screen, determining a screen speaker located on the left side of a reference plane as a left channel speaker, and determining a screen speaker located on the right side of the reference plane as a right channel speaker, wherein the reference plane is a vertical plane of the screen passing through a first rotation axis, the screen is configured to rotate around the first rotation axis, and the screen speaker is disposed on the screen; and controlling the left channel speaker to play the left channel audio information, and controlling the right channel speaker to play the right channel audio information.

[0016] Further, the method also includes: controlling the center speaker to play center audio information, wherein the audio information of the multiple channels also includes center audio information, the frequency band of the center audio information is at least partially staggered with the frequency band of the left channel audio information, and the frequency band of the center audio information is at least partially staggered with the frequency band of the right channel audio information; wherein, determining the current posture of the screen according to the first sound signal and the second sound signal includes: determining the current posture of the screen according to a first level difference, the first level difference being the level difference between the first sound signal and the second sound signal in the frequency band of the center audio information.

[0017] Further, the method also includes: controlling the center speaker to play center audio information, wherein the audio information of the multiple channels also includes center audio information, the frequency band of the center audio information is at least partially staggered with the frequency band of the left channel audio information, and the frequency band of the center audio information is at least partially staggered with the frequency band of the right channel audio information; determining the current posture of the screen according to the first sound signal and the second sound signal includes: determining the change state of the screen according to the level changes of the first sound signal and the second sound signal, the change state of the screen includes horizontal screen to vertical screen and vertical screen to horizontal screen; and determining the current posture of the screen according to at least one of the first level difference and the change state of the screen. , wherein the first level difference is the level difference between the first sound signal and the second sound signal in the frequency band of the center audio information; wherein, determining the current posture of the screen according to at least one of the first level difference and the change state of the screen includes: when the first level difference is equal to the reference level difference or the change state of the screen is from portrait to landscape, determining that the current posture of the screen is the landscape posture; when the first level difference is greater than the reference level difference and the change state of the screen is from landscape to portrait, determining that the current posture of the screen is the right turn portrait posture; and when the first level difference is less than the reference level difference and the change state of the screen is from landscape to portrait, determining that the current posture of the screen is the left turn portrait posture.

[0018] The embodiment of the present invention provides an electronic device and an audio playback control method for the electronic device. The structure of the electronic device is set so that when the screen is rotated, the positions of the first microphone, the second microphone and at least one speaker in the speaker array are changed. When the screen is rotated to different postures, the sound fields at the positions of the first microphone and the second microphone are different, so that the current posture of the screen can be determined according to the first sound signal generated by the sound picked up by the first microphone and the second sound signal generated by the sound picked up by the second microphone. Furthermore, according to the current posture of the screen, the corresponding left channel speaker and right channel speaker are determined from multiple screen speakers, so that when the screen is rotated by the user, the electronic device can automatically adjust the speakers that play the left channel audio information and the right channel audio information, ensuring that the electronic device can have a good stereo effect when the screen is in different postures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0020] Figure 1 is a schematic diagram of a three-dimensional structure of an electronic device according to an embodiment of the present invention;

[0021] Figure 2 is a schematic top view of an electronic device according to an embodiment of the present invention;

[0022] Figure 3 is a front view of an electronic device according to an embodiment of the present invention, with the screen in a landscape orientation;

[0023] Figure 4 is a schematic block diagram of the structure of an electronic device according to an embodiment of the present invention;

[0024] Figure 5 is a front view of an electronic device according to an embodiment of the present invention, with the screen in a left-turned vertical posture;

[0025] Figure 6 is a front view of an electronic device according to an embodiment of the present invention, with the screen in a right-turned portrait posture;

[0026] Figure 7 is a front view of an electronic device according to another embodiment of the present invention, with the screen in a landscape orientation;

[0027] Figure 8 is a flow chart of an audio playback control method for an electronic device according to an embodiment of the present invention;

[0028] Fig. 9 is a flow chart of determining a change state of a screen according to level changes of a first sound signal and a second sound signal according to an embodiment of the present invention;

[0029] Description of reference numerals:

[0030] A1-first rotation axis; P-reference plane; M1-first mirror symmetry plane; M2-second mirror symmetry plane; 1-support assembly; 11-base; 12-support rod; 2-screen; 21-first quadrant area; 22-second quadrant area; 23-third quadrant area; 24-fourth quadrant area; 3-speaker array; 31-screen speaker; 311-first screen speaker; 312-second screen speaker; 313-third screen speaker; 314-fourth screen speaker; 32-center speaker; 33-bottom speaker; 4-microphone group; 41-first microphone; 42-second microphone; 5-control circuit. DETAILED DESCRIPTION

[0031] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0032] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0033] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0034] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0035] In an embodiment of the present invention, an electronic device is provided, referring to Figure 1-Figure 7 The electronic device includes a support assembly 1, a screen 2, a speaker array 3, a microphone group 4 and a control circuit 5. The screen 2 is rotatably arranged on the support assembly 1, and the screen 2 can rotate relative to the support assembly 1 around a first rotation axis A1. Optionally, the first rotation axis A1 is perpendicular to the screen 2. When the screen 2 rotates relative to the support assembly 1 around the first rotation axis A1, it can be in a horizontal screen state (refer to Figure 1 , Figure 3 and Figure 7 ) and vertical screen state (refer to Figure 5 and Figure 6 ). Figure 4 The control circuit 5 is electrically connected to the screen 2, the speaker and the microphone group 4, and is used to control the operation of the screen 2, the speaker and the microphone. The speaker array 3 includes a plurality of speakers, and the plurality of speakers include a plurality of screen speakers 31. The screen speakers 31 are arranged on the screen 2 and are located away from the first rotation axis A1. When the screen 2 rotates around the first rotation axis A1, the orientation of the screen speakers 31 also changes accordingly. The microphone group 4 includes a first microphone 41 and a second microphone 42. The first microphone 41 and the second microphone 42 are arranged at intervals and away from the first rotation axis A1.

[0036] The control circuit 5 may include an audio processing module, which may include circuits for processing audio information, such as a digital-to-analog converter (DAC), an audio output mixer, and an audio output interface. The audio processing module determines the audio information of multiple channels according to the audio information to be played according to a predetermined rule. The audio information to be played may be pre-stored in the memory of the control circuit 5, or may be received from an external device that establishes communication with the electronic device through a wired or wireless communication method. The audio information of multiple channels includes left channel audio information and right channel audio information. The control circuit 5 controls the left channel speaker to play the left channel audio information, and controls the right channel speaker to play the right channel audio information.

[0037] In the embodiment of the present invention, the positions of the microphone group 4 and the speaker array 3 are reasonably set so that when the screen 2 rotates around the first rotation axis A1, the relative positions of at least one speaker in the speaker array 3 and the first microphone 41 and the second microphone 42 change. When the speaker array 3 plays audio, the control circuit 5 obtains the first sound signal generated by the sound picked up by the first microphone 41 and the second sound signal generated by the sound picked up by the second microphone 42. Since the screen 2 has different relative positional relationships with the first microphone 41, the second microphone 42 and the speaker array 3 in different postures, the control circuit 5 can determine the current posture of the screen 2 based on the first sound signal and the second sound signal, wherein the screen 2 includes two relatively arranged long sides and two relatively arranged short sides, and the current posture of the screen 2 includes a horizontal screen posture and a vertical screen posture. In the embodiment of the present invention, the reference plane P is defined as the vertical plane of the screen 2 passing through the first rotation axis A1. After determining the current posture of the screen 2, the control circuit 5 determines the screen speaker 31 located on the left side of the reference plane P as the left channel speaker, and determines the screen speaker 31 located on the right side of the reference plane P as the right channel speaker according to the current posture of the screen 2, and makes the corresponding screen speaker 31 play the audio information of the corresponding channel. In this way, when the current posture of the screen 2 is changed by the rotation of the user operation, the control circuit 5 can dynamically know the current posture of the screen 2, and re-determine the corresponding relationship between the multiple screen speakers 31 and the left channel or the right channel according to the current posture of the screen 2, so as to ensure that the left channel audio information is played by the screen speaker 31 located on the left side of the vertical plane (reference plane P) of the screen 2, and the right channel audio information is played by the screen speaker 31 located on the right side of the vertical plane (reference plane P) of the screen 2, thereby ensuring the sound effect of the electronic device.

[0038] The specific structure of the support assembly 1 can be freely set to a structure that can support the screen 2 and allow the screen 2 to rotate around the first rotation axis A1 according to actual needs. In this embodiment, the support assembly 1 includes a base 11 and a support rod 12, the support rod 12 is arranged on the base 11, and the screen 2 is connected to the support rod 12. As needed, the base 11 can also be provided with rollers to facilitate the movement of the electronic device.

[0039] In some embodiments, reference Figure 1 and Figure 2 , the speaker array 3 includes at least one center speaker 32, and the center speaker 32 is arranged on the supporting assembly 1 and located on the reference plane P. Optionally, the center speaker 32 is arranged on the top of the supporting rod 12. The audio information of multiple channels also includes center audio information, and the control circuit 5 is further configured to control the center speaker 32 to play the center audio information. Optionally, the frequency band of the center audio information is at least partially staggered with the frequency band of the left channel audio information, and the frequency band of the center audio information is at least partially staggered with the frequency band of the right channel audio information. In a feasible implementation, the frequency band of the center audio information can be set to the intermediate frequency, and the frequency bands of the left channel audio information and the right channel audio information can be set to the high frequency.

[0040] In some embodiments, the first microphone 41 and the second microphone 42 are disposed on the screen 2. When the screen 2 rotates relative to the support assembly 1, the distance between the center speaker 32 and the first microphone 41 and the second microphone 42 changes, and the level of the first sound signal and the second sound signal in the frequency band of the center audio information also changes. Therefore, the control circuit 5 can determine the relative position of the center speaker 32 and the first microphone 41 and the second microphone 42 according to the level of the first sound signal and the second sound signal in the frequency band of the center audio information, and further determine the current posture of the screen 2.

[0041] Optionally, when the screen 2 is in at least one posture, the position of the first microphone 41 and the position of the second microphone 42 are mirror-symmetrical about the reference plane P. For example, the structure of the electronic device can be set so that when the screen 2 is in the horizontal screen state, the position of the first microphone 41 and the position of the second microphone 42 are mirror-symmetrical about the reference plane P, the first microphone 41 is arranged on the left side of the reference plane P, and the second microphone 42 is arranged on the right side of the reference plane P. That is, the first microphone 41 and the second microphone 42 can be arranged on a long side of the screen 2. In this embodiment, the first microphone 41 and the second microphone 42 are arranged on a long side of the screen 2 that is shortest from the center speaker 32 in the horizontal screen posture. Since the center speaker 32 is arranged on the support assembly 1 and is located on the reference plane P, when the screen 2 is in the horizontal screen posture, the distance between the first microphone 41 and the center speaker 32 is equal to the distance between the second microphone 42 and the center speaker 32. When the configurations of the first microphone 41 and the second microphone 42 are the same, the first sound signal and the second sound signal have substantially equal levels in the frequency band of the center audio information. Thus, the control circuit 5 can determine the current posture of the screen 2 according to the first level difference, wherein the first level difference is the level difference between the first sound signal and the second sound signal in the frequency band of the center audio information. When the first level difference is equal to the reference level difference, it can be determined that the current posture of the screen 2 is the horizontal screen posture. The reference level difference can be set according to the specific configuration of the first microphone 41 and the second microphone 42. For example, the screen 2 can be tested in the horizontal screen posture, and the level difference between the first sound signal and the second sound signal in the frequency band of the center audio information is used as the reference level difference. When the configuration of the first microphone 41 and the second microphone 42 is the same, the reference level difference can be 0.

[0042] The vertical screen posture may include a left-turn vertical screen posture and a right-turn vertical screen posture, wherein reference Figure 6 , turn left to vertical screen posture Figure 1 and Figure 3 The screen 2 is rotated 90 degrees counterclockwise around the first rotation axis A1 in the horizontal screen posture shown; refer to Figure 5 , turn right vertically to Figure 1 and Figure 3 The horizontal screen posture shown is formed by rotating the screen 2 90 degrees clockwise around the first rotation axis A1.

[0043] Reference Figure 6 , in the left-turned portrait posture, the distance between the second microphone 42 and the center speaker 32 disposed on the reference plane P is smaller than the distance between the first microphone 41 and the center speaker 32, and thus, the first level difference is smaller than the reference level difference. Conversely, when the first level difference is smaller than the reference level difference, it indicates that the current posture of the screen 2 may be the left-turned portrait posture, and the control circuit 5 may determine that the current posture of the screen 2 is the left-turned portrait posture at this time.

[0044] Reference Figure 5 , in the right-turned portrait posture, the distance between the second microphone 42 and the center speaker 32 disposed on the reference plane P is greater than the distance between the first microphone 41 and the center speaker 32, and thus, the first level difference is greater than the reference level difference. Conversely, when the first level difference is greater than the reference level difference, it indicates that the current posture of the screen 2 may be the right-turned portrait posture, and the control circuit 5 may determine that the current posture of the screen 2 is the right-turned portrait posture at this time.

[0045] In some embodiments, the control circuit 5 can also determine the change state of the screen 2 according to the level change of the first sound signal and the second sound signal, and determine the current posture of the screen 2 in combination with the change state of the screen 2. The change state of the screen 2 includes the change from horizontal screen to vertical screen and from vertical screen to horizontal screen. Figure 1 and Figure 3 When the screen 2 is in the horizontal position, the first microphone 41 and the second microphone 42 are closer to the center speaker 32. Figure 5 and Figure 6 When the screen 2 is in the left-turned vertical screen posture or the right-turned vertical screen posture, the first microphone 41 and the second microphone 42 are far away from the center speaker 32. Therefore, when the loudness of the audio output by the microphone array remains unchanged, when the screen 2 is in the left-turned vertical screen posture or the right-turned vertical screen posture Figure 1 and Figure 3 When the screen is in the horizontal position shown in FIG. 1 , the levels of the first sound signal and the second sound signal are high; when the screen 2 is in the horizontal position Figure 5 or Figure 6 In the vertical screen posture shown, the levels of the first sound signal and the second sound signal are low. Therefore, it can be determined whether the screen 2 has changed its posture according to the level changes of the first sound signal and the second sound signal, and it can be determined whether the change state of the screen 2 is horizontal to vertical or vertical to horizontal.

[0046] In a feasible implementation, determining the change state of the screen 2 according to the level change of the first sound signal and the second sound signal can be achieved by comparing the levels of the first sound signal and the second sound signal with a reference level. Specifically, the levels of the first sound signal and the second sound signal when the electronic device is turned on can be recorded as reference levels and the reference levels can be recorded. When the audio output loudness of the electronic device remains unchanged, if the current levels of the first sound signal and the second sound signal are less than the reference level, it can be determined that the change state of the screen 2 is from horizontal to vertical; if the levels of the first sound signal and the second sound signal are greater than the reference level, it can be determined that the change state of the screen 2 is from vertical to horizontal. When determining that the change state of the screen 2 is from horizontal to vertical or from vertical to horizontal, the control circuit 5 updates the reference level to the current levels of the first sound signal and the second sound signal. When determining that the change state of the screen 2 is from vertical to horizontal, it indicates that the current posture of the screen 2 may be horizontal; when determining that the change state of the screen 2 is from horizontal to vertical, it indicates that the current posture of the screen 2 may be vertical.

[0047] In one embodiment, the current posture of the screen 2 can be determined in combination with the first level difference and the change state of the screen 2. The control circuit 5 is configured to: when the first level difference is equal to the reference level or the change state of the screen 2 is from portrait to landscape, determine that the current posture of the screen 2 is the landscape posture; when the first level difference is greater than the reference level and the change state of the screen 2 is from landscape to portrait, determine that the current posture of the screen 2 is the right turn portrait posture; when the first level difference is less than the reference level and the change state of the screen 2 is from landscape to portrait, determine that the current posture of the screen 2 is the left turn portrait posture. This setting method is conducive to improving the accuracy of the current posture determination result of the screen 2, and reducing the interference caused by changes in the surrounding environment and changes in the performance of the microphone group 4 on the current posture determination result of the screen 2.

[0048] In the embodiment of the present invention, the speaker array 3 may further include at least one bottom speaker 33, the bottom speaker 33 is arranged on the base 11, the audio information of the multiple channels also includes bottom audio information, and the control circuit 5 controls the bottom speaker 33 to play the bottom audio information. The frequency band of the bottom audio information may be lower than the frequency band of the left channel audio information, the frequency band of the right channel audio information, and the frequency band of the center audio information. Since the low-frequency sound wave attenuates less with distance, the low-frequency part is played by the bottom speaker 33 arranged on the base 11, and the mid-frequency part is played by the screen speaker 31 and the center speaker 32 which are located higher and closer to the human ear when the electronic device is used, so as to better ensure the overall sound effect of the electronic device.

[0049] In order to ensure that the screen 2 can have a good stereo effect in both the horizontal and vertical screen postures, the number of screen speakers 31 can include multiple. Since the position of the screen speaker 31 remains relatively still with the screen 2, the specific screen speakers 31 corresponding to the left channel speaker and the right channel speaker of the screen 2 in each posture can be predetermined according to the setting positions of the multiple screen speakers 31. That is, in each posture of the screen 2, the screen speaker 31 corresponding to the left channel speaker and the screen speaker 31 corresponding to the right channel speaker can be predetermined and have a unique mapping relationship, and the mapping relationship table can be pre-stored in the memory of the control circuit 5. After the control circuit 5 determines the current posture of the screen 2, the screen speaker 31 corresponding to the left channel speaker and the screen speaker 31 corresponding to the right channel speaker can be determined according to the mapping relationship table.

[0050] Reference Figure 3 , Figure 5-Figure 7 , the screen 2 has a first mirror symmetry plane M1 and a second mirror symmetry plane M2, the first mirror symmetry plane M1 and the second mirror symmetry plane M2 are arranged orthogonally, and the first rotation axis A1 coincides with the intersection line of the first mirror symmetry plane M1 and the second mirror symmetry plane M2. The first mirror symmetry plane M1 and the second mirror symmetry plane M2 define four quadrant areas of the screen 2, and the four quadrant areas are respectively the first quadrant area 21, the second quadrant area 22, the third quadrant area 23 and the fourth quadrant area 24. When the current posture of the screen 2 is the horizontal screen posture, the first mirror symmetry plane M1 coincides with the reference plane P, the first quadrant area 21 and the second quadrant area 22 are located on the right side of the reference plane P, the third quadrant area 23 and the fourth quadrant area 24 are located on the left side of the reference plane P, the first quadrant area 21 is located above the second quadrant area 22, and the fourth quadrant area 24 is located above the reference plane P. When the current posture of the screen 2 is the vertical screen posture, the second mirror symmetry plane M2 coincides with the reference plane P.

[0051] In one embodiment, if Figure 3 , Figure 5 and Figure 6As shown, at least one screen speaker 31 may be provided in each quadrant area, for example, one screen speaker 31 may be provided in each quadrant area. Optionally, the position of the screen speaker 31 in the first quadrant area 21 is mirror-symmetrical with the position of the screen speaker 31 in the second quadrant area 22 about the second mirror symmetry plane M2, the position of the screen speaker 31 in the third quadrant area 23 is mirror-symmetrical with the position of the screen speaker 31 in the fourth quadrant area 24 about the second mirror symmetry plane M2, the position of the screen speaker 31 in the first quadrant area 21 is mirror-symmetrical with the position of the screen speaker 31 in the fourth quadrant area 24 about the first mirror symmetry plane M1, and the position of the screen speaker 31 in the second quadrant area 22 is mirror-symmetrical with the position of the screen speaker 31 in the third quadrant area 23 about the first mirror symmetry plane M1. Therefore, no matter the screen 2 is in the horizontal screen posture, the left-turned portrait screen posture or the right-turned portrait screen posture, there are two screen speakers 31 on the left side of the reference plane P and two screen speakers 31 on the right side of the reference plane P, so that the screen 2 can have good left and right channel audio output effects in the horizontal screen posture, the left-turned portrait screen posture or the right-turned portrait screen posture. Figure 3 , when it is determined that the current posture of the screen 2 is the horizontal posture, the screen speakers 31 located in the first quadrant area 21 and the second quadrant area 22 are determined as right channel speakers, and the screen speakers 31 located in the third quadrant area 23 and the fourth quadrant area 24 are determined as left channel speakers; refer to Figure 5 , when it is determined that the current posture of the screen 2 is the right-turned vertical screen posture, the screen speakers 31 located in the first quadrant area 21 and the fourth quadrant area 24 are determined as right channel speakers, and the screen speakers 31 located in the second quadrant area 22 and the third quadrant area 23 are determined as left channel speakers; refer to Figure 6 When it is determined that the current posture of the screen 2 is a left-turned vertical posture, the screen speakers 31 located in the second quadrant area 22 and the third quadrant area 23 are determined as right channel speakers, and the screen speakers 31 located in the first quadrant area 21 and the fourth quadrant area 24 are determined as left channel speakers.

[0052] In another embodiment, referring to Figure 7, the multiple screen speakers 31 include a first screen speaker 311, a second screen speaker 312, a third screen speaker 313 and a fourth screen speaker 314, wherein the first screen speaker 311 and the second screen speaker 312 are arranged on the first mirror symmetry plane M1 and are respectively arranged on both sides of the second mirror symmetry plane M2, and the third screen speaker 313 and the fourth screen speaker 314 are arranged on the second mirror symmetry plane M2 and are respectively arranged on both sides of the first mirror symmetry plane M1. Therefore, no matter the screen 2 is in a horizontal posture, a left-turned vertical posture or a right-turned vertical posture, there is a screen speaker 31 on the left and right sides of the reference plane P respectively. Specifically, referring to Figure 7 Taking the case where the posture of screen 2 is horizontal, the first screen speaker 311 is located above the second screen speaker 312 and the third screen speaker 313 is located on the left side of the fourth screen speaker 314 as an example, when it is determined that the current posture of screen 2 is horizontal, the fourth screen speaker 314 is determined as the right channel speaker, and the third screen speaker 313 is determined as the left channel speaker; when it is determined that the current posture of screen 2 is right-turned portrait, the first screen speaker 311 is determined as the right channel speaker, and the second screen speaker 312 is determined as the left channel speaker; when it is determined that the current posture of screen 2 is left-turned portrait, the second screen speaker 312 is determined as the right channel speaker, and the first screen speaker 311 is determined as the left channel speaker.

[0053] In the embodiment of the present invention, in order to more accurately determine the current posture of the screen 2, the current posture of the screen 2 may be determined comprehensively in other ways. For example, a gyroscope may be installed on the screen 2, and the current posture of the screen 2 may be determined comprehensively by combining the data collected by the gyroscope, the first sound signal, and the second sound signal. For another example, an image acquisition device such as a camera may be set on the electronic device to collect environmental images, and the current posture of the screen 2 may be determined comprehensively by analyzing the environmental images and combining the first sound signal and the second sound signal.

[0054] The embodiment of the present invention also relates to an audio playback control method for an electronic device. In some application scenarios, the audio playback control method can be applied to the electronic device described in at least some of the embodiments above and executed by the control circuit 5 in the electronic device. Figure 8 The audio playback control method includes the following steps S110 to S150:

[0055] Step S110: determining audio information of multiple channels according to the audio information to be played.

[0056] As described in the electronic device embodiment above, the audio information of multiple channels includes left channel audio information and right channel audio information, and according to the specific configuration of the speaker array 3 of the electronic device, may also include center audio information, bottom audio information, etc.

[0057] Step S120: When the speaker array plays audio, a first sound signal generated by the sound picked up by the first microphone and a second sound signal generated by the sound picked up by the second microphone are obtained.

[0058] Referring to the above description, in step S120 , the first sound signal is generated by the sound picked up by the first microphone 41 , and the second sound signal is generated by the sound picked up by the second microphone 42 .

[0059] Step S130: determining the current posture of the screen according to the first sound signal and the second sound signal.

[0060] In step S130, the current posture of the screen 2 can be determined according to the first sound signal and the second sound signal in a variety of different ways. For example, referring to the description in the above embodiment, the electronic device includes a center speaker 32, and the control circuit 5 controls the center speaker 32 to play the center audio information. In one embodiment, the current posture of the screen 2 can be determined according to the first level difference, wherein the first level difference is the level difference between the first sound signal and the second sound signal in the frequency band of the center audio information. In another embodiment, the current posture of the screen 2 can be determined according to the changing state of the screen 2, wherein the changing state of the screen 2 can be determined by the first sound signal and the second sound signal. In another embodiment, the current posture of the screen 2 can be determined in combination with the first level difference and the changing state of the screen 2.

[0061] In one embodiment, the current posture of the screen 2 can be determined in step S130 based on the first sound signal and the second sound signal by combining the first level difference and the change state of the screen 2. Then step S130 may include the step of determining the change state of the screen 2 based on the level changes of the first sound signal and the second sound signal, and the step of calculating the first level difference. Fig. 9 , the determination of the change state of screen 2 may include the following steps S210 to S240:

[0062] In step S210, the levels of the first sound signal and the second sound signal when the electronic device is turned on are recorded as reference levels.

[0063] In step S220, it is detected whether the current levels of the first sound signal and the second sound signal have changed compared with the reference level. When the current levels of the first sound signal and the second sound signal are equal to the reference level, that is, when the difference between the current levels of the first sound signal and the second sound signal and the reference level is equal to 0, the changes of the first sound signal and the second sound signal continue to be monitored. When the current levels of the first sound signal and the second sound signal are less than the reference level (the difference between the current levels of the first sound signal and the second sound signal and the reference level is less than 0), step S230 is executed to determine that the change state of screen 2 is horizontal to vertical, and the reference level is updated to the current level. When the current levels of the first sound signal and the second sound signal are greater than the reference level (the difference between the current levels of the first sound signal and the second sound signal and the reference level is greater than 0), step S240 is executed to determine that the change state of screen 2 is vertical to horizontal, and the reference level is updated to the current level.

[0064] Specifically, determining the current posture of screen 2 according to the first sound signal and the second sound signal can be carried out according to the following rules: when the first level difference is equal to the reference level difference or the change state of screen 2 is from portrait to landscape, the current posture of screen 2 is determined to be the landscape posture; when the first level difference is greater than the reference level difference and the change state of screen 2 is from landscape to portrait, the current posture of screen 2 is determined to be the right turn portrait posture; when the first level difference is less than the reference level difference and the change state of screen 2 is from landscape to portrait, the current posture of screen 2 is determined to be the left turn portrait posture.

[0065] Step S140: According to the current posture of the screen, the screen speaker located on the left side of the reference plane is determined as the left channel speaker, and the screen speaker located on the right side of the reference plane is determined as the right channel speaker.

[0066] Referring to the above description, in step S140 , the reference plane P is a vertical plane passing through the first rotation axis A1 of the screen 2 of the electronic device.

[0067] Step S150: Control the left channel speaker to play the left channel audio information, and control the right channel speaker to play the right channel audio information.

[0068] The electronic device and the audio playback control method for the electronic device of the embodiment of the present invention are configured such that when the screen 2 is rotated, the positions of the first microphone 41, the second microphone 42 and at least one speaker in the speaker array 3 are changed, so that when the screen 2 is rotated to different postures, the sound fields at the positions of the first microphone 41 and the second microphone 42 are different, so that the current posture of the screen 2 can be determined according to the first sound signal generated by the sound picked up by the first microphone 41 and the second sound signal generated by the sound picked up by the second microphone 42. Furthermore, according to the current posture of the screen 2, the corresponding left channel speaker and right channel speaker are determined from the multiple screen speakers 31, so that when the screen 2 is rotated by the user operation, the electronic device can automatically adjust the speakers that play the left channel audio information and the right channel audio information, ensuring that the electronic device can have a good stereo effect when the screen 2 is in different postures.

[0069] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, devices (equipment) or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present application may adopt a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0070] These computer program instructions may be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device that implements the process Figure 1 A function specified in a process or multiple processes.

[0071] These computer program instructions may also be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce the instructions for implementing the process Figure 1 A device that specifies functions in a process or multiple processes.

[0072] Another embodiment of the present invention relates to a non-volatile storage medium for storing a computer-readable program, wherein the computer-readable program is used for a computer to execute part or all of the above method embodiments.

[0073] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by specifying relevant hardware through a program, and the program is stored in a storage medium, including several instructions for a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0074] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electronic device, characterized in that: include: Support components; The screen is connected to the support assembly in a manner of being rotatable about a first rotation axis, and the first rotation axis is perpendicular to the screen; A speaker array, comprising a plurality of speakers, wherein the plurality of speakers include a plurality of screen speakers, and the screen speakers are arranged on the screen and deviate from the first rotation axis; A microphone group, comprising a first microphone and a second microphone, wherein the first microphone and the second microphone are arranged at an interval and deviate from the first rotating axis; as well as A control circuit, electrically connected to the screen, the speaker and the microphone group; Wherein, when the screen rotates around the first rotation axis, the relative positions of at least one of the speakers and the first microphone and the second microphone change; The control circuit is configured to: Determine audio information of multiple channels according to the audio information to be played, wherein the audio information of the multiple channels includes left channel audio information and right channel audio information; When the speaker array plays audio, obtaining a first sound signal generated by the sound picked up by the first microphone and a second sound signal generated by the sound picked up by the second microphone; determining a current posture of the screen according to the first sound signal and the second sound signal; According to the current posture of the screen, determining the screen speaker located on the left side of a reference plane as a left channel speaker, and determining the screen speaker located on the right side of the reference plane as a right channel speaker, wherein the reference plane is a vertical plane of the screen passing through the first rotation axis; and The left channel speaker is controlled to play the left channel audio information, and the right channel speaker is controlled to play the right channel audio information.

2. The electronic device according to claim 1, characterized in that: The first microphone and the second microphone are disposed on the screen, the speaker array comprises at least one center speaker, and the center speaker is disposed on the supporting assembly and located on the reference plane; When the screen rotates relative to the supporting assembly, the distances between the center speaker and the first microphone and the second microphone change; The audio information of the multiple channels further includes center audio information, and the control circuit is further configured to control the center speaker to play the center audio information.

3. The electronic device according to claim 2, characterized in that: The frequency band of the center audio information is at least partially staggered with the frequency band of the left channel audio information, and the frequency band of the center audio information is at least partially staggered with the frequency band of the right channel audio information.

4. The electronic device according to claim 3, characterized in that: When the screen is in at least one posture, the position of the first microphone and the position of the second microphone are mirror-symmetrical about the reference plane; The determining the current posture of the screen according to the first sound signal and the second sound signal comprises: The current posture of the screen is determined according to a first level difference, wherein the first level difference is a level difference between the first sound signal and the second sound signal in a frequency band of the center audio information.

5. The electronic device according to claim 3, characterized in that: The screen comprises two oppositely arranged long sides and two oppositely arranged short sides, and the first microphone and the second microphone are arranged on one of the long sides; The current posture of the screen includes a horizontal posture and a vertical posture. When the current posture of the screen is the horizontal posture, the position of the first microphone and the position of the second microphone are mirror-symmetrical about the reference plane, the first microphone is arranged on the left side of the reference plane, and the second microphone is arranged on the right side of the reference plane; Determining the current posture of the screen according to the first sound signal and the second sound signal includes: determining a change state of the screen according to level changes of the first sound signal and the second sound signal, wherein the change state of the screen includes switching from a horizontal screen to a vertical screen and from a vertical screen to a horizontal screen; and The current posture of the screen is determined according to at least one of a first level difference and a change state of the screen, wherein the first level difference is a level difference between the first sound signal and the second sound signal in a frequency band of the center audio information.

6. The electronic device according to claim 5, characterized in that: The vertical screen posture includes a left-turn vertical screen posture and a right-turn vertical screen posture, and the control circuit is configured as follows: When the first level difference is equal to the reference level difference or the change state of the screen is from the vertical screen to the horizontal screen, determining that the current posture of the screen is the horizontal screen posture; When the first level difference is greater than the reference level difference and the change state of the screen is from the horizontal screen to the vertical screen, determining that the current posture of the screen is the right turn vertical screen posture; as well as When the first level difference is smaller than the reference level difference and the change state of the screen is from landscape to portrait, it is determined that the current posture of the screen is a left-turned portrait posture.

7. The electronic device according to claim 5, characterized in that: The determining the change state of the screen according to the level changes of the first sound signal and the second sound signal comprises: recording the levels of the first sound signal and the second sound signal when the electronic device is turned on as reference levels; When the current levels of the first sound signal and the second sound signal are less than the reference level, determining that the change state of the screen is from the horizontal screen to the vertical screen, and updating the reference level to the current level; and When the levels of the first sound signal and the second sound signal are greater than a reference level, it is determined that the screen change state is from a vertical screen to a horizontal screen, and the reference level is updated to a current level.

8. The electronic device according to claim 2, characterized in that: The support assembly comprises a base and a support rod, the support rod is arranged on the base, the center speaker is arranged on the top of the support rod, and the screen is connected to the support rod.

9. The electronic device according to claim 8, characterized in that: The speaker array includes at least one bottom speaker, the bottom speaker is disposed on the base, the audio information of the multiple channels also includes bottom audio information, and the control circuit is further configured to control the bottom speaker to play the bottom audio information; The frequency band of the bottom audio information is lower than the frequency band of the left channel audio information, the frequency band of the right channel audio information, and the frequency band of the center audio information.

10. The electronic device according to claim 1, characterized in that: The screen has a first mirror symmetry plane and a second mirror symmetry plane, the first mirror symmetry plane is orthogonal to the second mirror symmetry plane, and the first rotation axis coincides with the intersection of the first mirror symmetry plane and the second mirror symmetry plane; The first mirror symmetry plane and the second mirror symmetry plane define four quadrant areas of the screen, the four quadrant areas are respectively a first quadrant area, a second quadrant area, a third quadrant area and a fourth quadrant area, and each quadrant area is provided with at least one screen speaker; The current posture of the screen includes a horizontal posture and a vertical posture. When the current posture of the screen is the horizontal posture, the first mirror symmetry plane coincides with the reference plane, the first quadrant area and the second quadrant area are located on the right side of the reference plane, the third quadrant area and the fourth quadrant area are located on the left side of the reference plane, the first quadrant area is located above the second quadrant area, and the fourth quadrant area is located above the reference plane; When the current posture of the screen is a vertical posture, the second mirror symmetry plane coincides with the reference plane.

11. The electronic device according to claim 1, characterized in that: The screen has a first mirror symmetry plane and a second mirror symmetry plane, the first mirror symmetry plane and the second mirror symmetry plane are arranged orthogonally, the first rotation axis coincides with the intersection of the first mirror symmetry plane and the second mirror symmetry plane, and the current posture of the screen includes a horizontal screen posture and a vertical screen posture; When the current posture of the screen is a horizontal posture, the first mirror symmetry plane coincides with the reference plane; When the current posture of the screen is a vertical posture, the second mirror symmetry plane coincides with the reference plane; The multiple screen speakers include a first screen speaker, a second screen speaker, a third screen speaker and a fourth screen speaker. The first screen speaker and the second screen speaker are arranged on the first mirror symmetry plane and are respectively arranged on both sides of the second mirror symmetry plane. The third screen speaker and the fourth screen speaker are arranged on the second mirror symmetry plane and are respectively arranged on both sides of the first mirror symmetry plane.

12. An audio playback control method for an electronic device, characterized in that: The method comprises: Determine audio information of multiple channels according to the audio information to be played, wherein the audio information of the multiple channels includes left channel audio information and right channel audio information; When the speaker array of the electronic device plays audio, obtaining a first sound signal generated by the sound picked up by the first microphone and a second sound signal generated by the sound picked up by the second microphone; determining a current posture of the screen according to the first sound signal and the second sound signal; According to the current posture of the screen, determining the screen speaker located on the left side of a reference plane as a left channel speaker, and determining the screen speaker located on the right side of the reference plane as a right channel speaker, wherein the reference plane is a vertical plane of the screen passing through a first rotation axis, the screen is configured to rotate around the first rotation axis, and the screen speaker is provided on the screen; and The left channel speaker is controlled to play the left channel audio information, and the right channel speaker is controlled to play the right channel audio information.

13. The method according to claim 12, characterized in that The method further comprises: Controlling the center speaker to play center audio information, wherein the audio information of the multiple channels further includes center audio information, a frequency band of the center audio information is at least partially staggered with a frequency band of the left channel audio information, and a frequency band of the center audio information is at least partially staggered with a frequency band of the right channel audio information; Wherein, determining the current posture of the screen according to the first sound signal and the second sound signal comprises: The current posture of the screen is determined according to a first level difference, where the first level difference is a level difference between the first sound signal and the second sound signal in a frequency band of the center audio information.

14. The method according to claim 12, characterized in that The method further comprises: Controlling the center speaker to play center audio information, wherein the audio information of the multiple channels further includes center audio information, a frequency band of the center audio information is at least partially staggered with a frequency band of the left channel audio information, and a frequency band of the center audio information is at least partially staggered with a frequency band of the right channel audio information; The determining the current posture of the screen according to the first sound signal and the second sound signal comprises: determining a change state of the screen according to level changes of the first sound signal and the second sound signal, wherein the change state of the screen includes switching from a horizontal screen to a vertical screen and from a vertical screen to a horizontal screen; and determining a current posture of the screen according to at least one of a first level difference and a change state of the screen, wherein the first level difference is a level difference between the first sound signal and the second sound signal in a frequency band of the center audio information; Wherein, determining the current posture of the screen according to at least one of the first level difference and the change state of the screen includes: When the first level difference is equal to the reference level difference or the change state of the screen is from the vertical screen to the horizontal screen, determining that the current posture of the screen is the horizontal screen posture; When the first level difference is greater than the reference level difference and the change state of the screen is from landscape to portrait, determining that the current posture of the screen is a right-turned portrait posture; and When the first level difference is smaller than the reference level difference and the change state of the screen is from landscape to portrait, it is determined that the current posture of the screen is a left-turned portrait posture.

Images