Vehicle-mounted audio and sound effect test system

Abstract

The utility model discloses a vehicle-mounted audio sound effect testing system, and relates to the technical field of vehicle-mounted audio testing. In the system, a microphone support comprises a support base, a rotating structure and a fixed support which are sequentially connected, the rotating structure can drive the fixed support to rotate in the horizontal direction and / or the vertical direction, and the fixed support comprises at least one vertical fixed arm and a plurality of horizontal fixed arms. The fixing support is used for fixing the plurality of microphones through the plurality of horizontal fixing arms. The controller is in communication connection with the vehicle-mounted loudspeaker, and the plurality of microphones can respectively acquire to-be-played audio data played by the vehicle-mounted loudspeaker and send the acquired sound data to the controller. The controller can determine a sound effect test result according to the multiple pieces of sound data and the to-be-played audio data. Therefore, the vehicle-mounted audio and sound effect test system can collect sound through a plurality of microphones in one test process, the uncertainty caused by the fluctuation of the sound pressure frequency band in the test process is avoided, and the test precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle audio testing, and in particular to a vehicle audio sound effect testing system. Background Art

[0002] During the propagation process, sound is often absorbed and / or reflected by objects such as walls and decorations, resulting in completely different effects when playing music in open scenes and closed scenes. Due to the complex environment inside the vehicle, the sound needs to be reflected multiple times before it can be absorbed during the propagation process, resulting in unsatisfactory listening effects when users play music inside the vehicle.

[0003] Normally, when vehicle providers produce vehicles, they will test the in-car audio and video environment in order to ensure that users can listen to music played in the car.

[0004] In the prior art, a single microphone, a simulated human head, binaural recording headphones and other equipment are usually used to collect sounds at corresponding positions inside the vehicle, thereby realizing the test of the in-vehicle audio and video environment.

[0005] However, due to the complex sound field environment in the car, single microphones, binaural recording headphones and other equipment can easily cause large differences in test results due to the displacement of fixed positions. In addition, the test efficiency of single microphones, binaural recording headphones and other equipment is low. Summary of the invention

[0006] This specification provides a vehicle-mounted audio sound effect testing system to partially solve the above-mentioned problems existing in the prior art.

[0007] This manual adopts the following technical solutions:

[0008] This manual provides a vehicle audio sound effect test system, including a microphone holder, a vehicle speaker, a controller and multiple microphones:

[0009] The microphone bracket comprises a bracket base, a rotating structure and a fixed bracket which are connected in sequence; the rotating structure can drive the fixed bracket to rotate along the horizontal direction and / or the vertical direction; the fixed bracket comprises at least one vertical fixed arm and a plurality of horizontal fixed arms, and the fixed bracket is used to fix the plurality of microphones through the plurality of horizontal fixed arms;

[0010] The plurality of microphones are all in communication connection with the controller and are capable of collecting a plurality of sound data;

[0011] The vehicle-mounted speaker is used to play the audio data to be played;

[0012] The controller is communicatively connected to the vehicle speaker and can send the audio data to be played to the vehicle speaker; the controller is also used to obtain and store the multiple sound data, and determine the sound effect test result of the vehicle audio based on the sound data and the audio data to be played.

[0013] Preferably, the support base includes a support seat and a telescopic rod;

[0014] The telescopic rod is connected to the rotating structure and can drive the rotating structure and the fixed bracket to rise or fall.

[0015] Preferably, the microphone bracket is arranged inside the vehicle to be tested, and the extension length of the telescopic rod and the rotation angle of the rotating structure in the horizontal direction and / or the vertical direction are adapted to the seat of the vehicle to be tested, so that the position of the fixed bracket is at the target position;

[0016] The target position is a preset position corresponding to the user's ears.

[0017] Preferably, the rotating structure comprises a horizontal rotating member and a vertical rotating member connected to each other;

[0018] The horizontal rotating member is connected to the bracket base, and can drive the vertical rotating member and the fixed bracket to rotate 360 ​​degrees in the horizontal direction;

[0019] The vertical rotating member is connected to the fixed bracket and can drive the fixed bracket to rotate in a vertical direction.

[0020] Preferably, both sides of the horizontal fixed arm are connected to at least one microphone.

[0021] Preferably, the horizontal fixed arm is configured with a plurality of connection structures, and different connection structures are at different distances from both ends of the horizontal fixed arm;

[0022] The connecting structure can be fixedly connected to the microphone to fix the microphone.

[0023] Preferably, the vehicle-mounted audio and sound effect testing system further includes a mobile storage device;

[0024] The mobile storage device can store the audio data to be played and the plurality of sound data;

[0025] The mobile storage device can be connected to the microphone and / or the controller and / or the vehicle-mounted speaker for data transmission with the microphone and / or the controller and / or the vehicle-mounted speaker.

[0026] Preferably, the controller is a signal analyzer;

[0027] The signal analyzer can send a play instruction to the vehicle-mounted speaker, and the play instruction is used to instruct the vehicle-mounted speaker to play the audio data to be played.

[0028] Preferably, the vehicle-mounted audio and sound effect testing system comprises a data acquisition card, and the data acquisition card is capable of supplying power to the plurality of microphones;

[0029] The data acquisition card is communicatively connected to the plurality of microphones and is communicatively connected to the controller;

[0030] The data acquisition card can acquire a plurality of sound data acquired by the plurality of microphones, and send the plurality of sound data to the controller.

[0031] Preferably, the vertical fixed arm is connected to the rotating structure and fixedly connected to the multiple horizontal fixed arms, and is used to fix the multiple horizontal fixed arms;

[0032] The number of the vertical fixed arms is 1;

[0033] The number of the horizontal fixed arms is three, and the number of the microphones is six.

[0034] At least one of the above technical solutions adopted in this specification can achieve the following beneficial effects:

[0035] Based on the above content, the vehicle-mounted audio sound effect test system includes a microphone holder, a vehicle-mounted speaker, a controller and a plurality of microphones. Among them, the microphone holder includes a holder base, a rotating structure and a fixed holder connected in sequence, the rotating structure can drive the fixed holder to rotate along the horizontal direction and / or the vertical direction, the fixed holder includes at least one vertical fixed arm and a plurality of horizontal fixed arms, and the fixed holder is used to fix the plurality of microphones through the plurality of horizontal fixed arms. The controller is communicatively connected with the vehicle-mounted speaker. After the vehicle-mounted speaker plays the audio data to be played, the plurality of microphones can collect it respectively, and send the collected plurality of sound data to the controller. The controller can determine the sound effect test result of the vehicle-mounted audio according to the sound data and the audio data to be played.

[0036] From the above content, it can be seen that the vehicle-mounted audio sound effect test system can collect sound through multiple microphones during a test, avoid the uncertainty caused by the fluctuation of the sound pressure frequency band during the test, and improve the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of this specification and constitute a part of this specification. The illustrative embodiments and descriptions of this specification are used to explain this specification and do not constitute an improper limitation on this specification. In the drawings:

[0038] Figure 1 A schematic diagram of the structure of a vehicle audio sound effect test system provided by one embodiment of this specification;

[0039] Figure 2 A schematic diagram of the structure of a microphone stand provided in one embodiment of the present specification;

[0040] Figure 3 A schematic diagram of a rotating structure provided for one embodiment of this specification;

[0041] Figure 4 A schematic diagram of a pitch angle adjustment process provided for an embodiment of this specification;

[0042] Figure 5 A schematic diagram of a portion of the structure of a microphone stand provided in accordance with an embodiment of the present specification;

[0043] Figure 6 A schematic diagram of the structure of a fixing bracket provided for one embodiment of the present specification. Description of the drawings:

[0045] Microphone holder 1; controller 2; vehicle speaker 3; microphone 4; holder base 11; rotating structure 12; fixed holder 13; horizontal rotating member 121; vertical rotating member 122; horizontal rotating direction 123; vertical rotating direction 124; first angle 125; second angle 126; connecting member 131; horizontal fixed arm 132; vertical fixed arm 133. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of this specification more clear, the technical solutions of this specification will be clearly and completely described below in combination with the specific embodiments of this specification and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] The technical solutions provided by the embodiments of this specification are described in detail below in conjunction with the accompanying drawings.

[0048] Figure 1 The structure diagram of the vehicle audio sound effect test system provided by one embodiment of this specification is as follows. Figure 1 As shown, the vehicle-mounted audio sound effect testing system includes a microphone holder 1, a controller 2, a vehicle-mounted speaker 3 and a plurality of microphones 4.

[0049] Preferably, the microphone holder 1 comprises a holder base 11 , a rotating structure 12 and a fixed holder 13 which are connected in sequence.

[0050] Figure 2 The structure diagram of the microphone holder 1 provided in one embodiment of the present specification is shown in FIG. Figure 2 As shown, the support base 11, the rotating structure 12 and the fixed support 13 are connected in sequence.

[0051] Preferably, the rotating structure 12 includes a horizontal rotating member 121 and a vertical rotating member 122 .

[0052] Preferably, the horizontal rotating member 121 and the vertical rotating member 122 are connected to each other.

[0053] It is understood by those skilled in the art that the connection technology between mechanical structures has been developed to a relatively mature level. The horizontal rotating member 121 and the vertical rotating member 122 can be directly connected to each other by welding, bolt connection, rivet connection, etc. This specification does not limit the specific connection method, nor does it limit whether the connection is a fixed connection or a detachable connection. Accordingly, this specification does not limit the connection method between other components of the vehicle-mounted audio sound effect test system.

[0054] Preferably, the horizontal rotating member 121 is connected to the support base 11 .

[0055] Preferably, the vertical rotating member 122 is connected to the fixed bracket 13 .

[0056] Preferably, the support base 11, the horizontal rotating member 121, the vertical rotating member 122 and the fixed support 13 are connected in sequence.

[0057] Preferably, the horizontal rotating member 121 can drive the vertical rotating member 122 and the fixing bracket 13 to rotate 360 ​​degrees in the horizontal direction.

[0058] Preferably, the vertical rotating member 122 can drive the fixing bracket 13 to rotate in the vertical direction.

[0059] Figure 3 FIG. 1 is a schematic diagram of a rotating structure 12 provided in an embodiment of the present specification. Figure 3 As shown, the horizontal rotating member 121 is connected to the vertical rotating member 122 , and the horizontal rotating member 121 can rotate along a horizontal rotating direction 123 , and the vertical rotating member 122 can rotate along a vertical rotating direction 124 .

[0060] Preferably, the rotating structure 12 can drive the fixing bracket 13 to rotate along the horizontal direction and / or the vertical direction.

[0061] Preferably, the fixing bracket 13 includes at least one vertical fixing arm 133 and a plurality of horizontal fixing arms 132 .

[0062] Preferably, the horizontal fixing arm 132 can be detachably connected to the microphone 4 .

[0063] Preferably, the fixing bracket 13 is used to fix the plurality of microphones 4 via the plurality of horizontal fixing arms 132 .

[0064] Preferably, both ends of any horizontal fixed arm 132 can be detachably connected to a microphone 4 .

[0065] Preferably, the plurality of microphones 4 are all communicatively connected to the controller 2 .

[0066] It is understood by those skilled in the art that the technology of communication connection has been developed to a relatively mature level, and the microphone 4 can be connected to the controller 2 through electrical connection, Bluetooth connection, wireless LAN connection, short-range wireless communication, etc., and this specification does not limit the communication connection between the microphone 4 and the controller 2. Accordingly, this specification does not limit the communication connection between other components in the vehicle-mounted audio sound effect test system.

[0067] Preferably, the microphone 4 is capable of collecting sound data.

[0068] Preferably, the plurality of microphones 4 can collect sound data respectively.

[0069] Preferably, the plurality of microphones 4 can respectively send the sound data collected by each of them to the controller 2 .

[0070] Preferably, the structures of the support base 11, the rotating structure 12 and the fixed support 13 are adapted to each other, so that when the support base 11 is mounted on a seat of a vehicle, the distance between the fixed support 13 and the seat is within a preset first distance interval, thereby making it possible for at least two of the multiple microphones 4 to be located at the same or adjacent positions as the ears of a user sitting on the seat.

[0071] The first preset distance interval is a preset value, such as 40cm-80cm, 50cm-70cm, etc.

[0072] Preferably, the vehicle-mounted speaker 3 is used to play the audio data to be played.

[0073] Preferably, the controller 2 is communicatively connected to the vehicle-mounted speaker 3 .

[0074] Preferably, the controller 2 is capable of sending the audio data to be played to the vehicle-mounted speaker 3 .

[0075] Preferably, the controller 2 is further used for acquiring and storing the plurality of sound data, wherein the plurality of sound data are sent by the plurality of microphones 4 .

[0076] Preferably, the controller 2 is also used to determine the sound effect test result of the vehicle audio according to the sound data and the audio data to be played.

[0077] Based on the above content, the vehicle audio sound effect test system includes a microphone holder 1, a vehicle speaker 3, a controller 2 and a plurality of microphones 4. The microphone holder 1 includes a holder base 11, a rotating structure 12 and a fixed holder 13 connected in sequence, the rotating structure 12 can drive the fixed holder 13 to rotate along the horizontal direction and / or the vertical direction, the fixed holder 13 includes at least one vertical fixed arm 133 and a plurality of horizontal fixed arms 132, and the fixed holder 13 is used to fix the plurality of microphones 4 through the plurality of horizontal fixed arms 132. The controller 2 is connected to the vehicle speaker 3 for communication. After the vehicle speaker 3 plays the audio data to be played, the plurality of microphones 4 can collect the audio data respectively, and send the collected plurality of sound data to the controller 2. The controller 2 can determine the sound effect test result of the vehicle audio according to the sound data and the audio data to be played.

[0078] It can be seen from the above content that the vehicle-mounted audio sound effect test system can collect sound through multiple microphones 4 during a test process, avoid the uncertainty caused by the fluctuation of the sound pressure frequency band during the test process, and improve the test accuracy.

[0079] Preferably, the support base 11 may be a tripod, a monopod or other structure that can stably support the support.

[0080] Preferably, the support base 11 is a tripod.

[0081] Preferably, the bracket base 11 includes a support seat and a telescopic rod.

[0082] Preferably, the top end of the telescopic rod can be connected to the rotating structure 12 .

[0083] Preferably, the telescopic rod can drive the rotating structure 12 and the fixed bracket 13 to rise or fall.

[0084] Preferably, the structures of the bracket base 11, the rotating structure 12 and the fixed bracket 13 are adapted to each other, so that the distance between the microphone 4 fixed on the fixed bracket 13 and the bottom of the bracket base 11 can be between 220 mm and 420 mm by extending or shortening the telescopic rod of the bracket base 11.

[0085] Preferably, the support base 11 is provided with a heightening rod.

[0086] Preferably, the structures of the bracket base 11, the rotating structure 12 and the fixed bracket 13 equipped with the heightening rod are adapted to each other, so that the distance between the microphone 4 fixed on the fixed bracket 13 and the bottom of the bracket base 11 can be between 430 mm and 870 mm by extending or shortening the telescopic rod of the bracket base 11.

[0087] Preferably, the horizontal rotating member 121 is fixedly connected to the bracket base 11 .

[0088] Preferably, the horizontal rotating member 121 is detachably connected to the bracket base 11 .

[0089] Preferably, the horizontal rotating member 121 can drive the fixed bracket 13 to rotate in the horizontal direction through the vertical rotating member 122 .

[0090] Preferably, the horizontal rotating member 121 is a device capable of rotating in the horizontal direction, such as a spherical pan head, a two-dimensional pan head, etc. As the relevant technology has been developed relatively maturely, this specification does not limit what kind of device the horizontal rotating member 121 is.

[0091] Preferably, the horizontal rotating member 121 is a spherical head.

[0092] Preferably, the horizontal rotating member 121 can rotate 360 ​​degrees in the horizontal direction.

[0093] Preferably, the horizontal rotating member 121 and the vertical rotating member 122 are detachably connected.

[0094] Preferably, the vertical rotating member 122 is fixedly connected to the fixed bracket 13 .

[0095] Preferably, the vertical rotating member 122 is detachably connected to the fixing bracket 13 .

[0096] Preferably, the vertical rotating member 122 is configured with a quick release member.

[0097] Preferably, the vertical rotating member 122 can be detachably connected to the fixing bracket 13 via the quick release member.

[0098] Preferably, the vertical rotating member 122 can drive the fixing bracket 13 to rotate, thereby adjusting the pitch angle of the fixing bracket 13 .

[0099] Figure 4 The following is a schematic diagram of a pitch angle adjustment process provided by an embodiment of the present specification. Figure 4 As shown, during the process of adjusting the pitch angle of the fixing bracket 13 , the angle between the fixing bracket 13 and the vertical direction changes. Obviously, the first angle 125 is smaller than the second angle 126 .

[0100] Preferably, when the vertical rotating member 122 drives the fixed bracket 13 to rotate downward to the limit in the vertical direction, the angle between the fixed bracket 13 and the bracket base 11 is 9 degrees, and when the vertical rotating member 122 drives the fixed bracket 13 to rotate upward to the limit in the vertical direction, the angle between the fixed bracket 13 and the bracket base 11 is 59 degrees.

[0101] Those skilled in the art can understand that the development of the mechanical field is relatively mature, and there are a variety of mechanical structures that can rotate. Therefore, this specification does not limit the specific structure of the vertical rotating member 122.

[0102] Preferably, the fixing bracket 13 includes at least one vertical fixing arm 133 and at least one horizontal fixing arm 132 .

[0103] Preferably, the vertical fixed arm 133 is connected to the rotating structure 12 .

[0104] Preferably, the vertical fixing arm 133 is connected to the at least one horizontal fixing arm 132 . It should be noted that, when the number of the vertical fixing arm 133 is 1, the vertical fixing arm 133 is connected to each horizontal fixing arm 132 .

[0105] Preferably, the horizontal fixing arm 132 can be connected to the microphone 4 to fix the microphone 4 .

[0106] Preferably, the vertical fixing arm 133 is used to fix the at least one horizontal fixing arm 132 and the plurality of microphones 4 .

[0107] Preferably, there are multiple vertical fixing arms 133 , at least one of which is fixedly connected to the rotating structure 12 . The multiple vertical fixing arms 133 are connected to the multiple horizontal fixing arms 132 to support, fix and stabilize the multiple horizontal fixing arms 132 .

[0108] Preferably, both ends of any horizontal fixed arm 132 are fixedly connected to at least one microphone 4 .

[0109] Preferably, the microphone 4 is used to receive sound signals.

[0110] Preferably, the horizontal fixing arm 132 is configured with a plurality of connection structures, and different connection structures are at different distances from both ends of the horizontal fixing arm 132 .

[0111] Preferably, the connection structure can be fixedly connected to the microphone 4 to fix the microphone 4 .

[0112] Those skilled in the art will appreciate that the development of technologies related to connection structures has been relatively mature, and this specification does not limit the specific structure of the connection structure. The connection structure is only illustrated as a first mounting hole and a first slide rail in the following embodiments.

[0113] Preferably, the surfaces of the plurality of horizontal fixing arms 132 are each configured with a plurality of first mounting holes.

[0114] Preferably, a plurality of second mounting holes are disposed on the surface of the at least one vertical fixing arm 133 .

[0115] Preferably, the microphone 4 can be detachably connected to the horizontal fixed arm 132 through the first mounting hole.

[0116] Preferably, the first mounting hole is used to fix the microphone 4 .

[0117] Preferably, the microphone holder 1 further includes a connecting piece 131 .

[0118] Preferably, the connecting member 131 is L-shaped, and can be detachably connected to the horizontal fixed arm 132 and can be detachably connected to the microphone 4 .

[0119] Figure 5 This is a partial structural diagram of a microphone stand 1 provided in one embodiment of the present specification. Figure 5 As shown, the connecting member 131 is L-shaped, one end of which is connected to the horizontal fixed arm 132 , and the other end of which is connected to the microphone 4 .

[0120] Those skilled in the art will appreciate that, since the connection structure has been developed to a relatively mature stage, this specification does not limit the specific structure of the connection member 131 , and the connection member 131 may also be a connection member 131 of other shapes, structures, and materials.

[0121] Preferably, the second mounting hole is used to fix the horizontal fixing arm 132 .

[0122] Preferably, the horizontal fixing arm 132 can be connected to the vertical fixing arm 133 through the second connecting hole.

[0123] Preferably, the distance between any two adjacent first mounting holes is 9.5 cm.

[0124] Preferably, the distance between any two adjacent second mounting holes is 3.17 cm.

[0125] Preferably, a first slide rail is disposed on the surface of the horizontal fixed arm 132 .

[0126] Preferably, a second slide rail is disposed on the surface of the vertical fixed arm 133 .

[0127] Preferably, both the first slide rail and the second slide rail include a fixing member and a sliding member.

[0128] Preferably, the fixing member is fixedly connected to the horizontal fixing arm 132 or the vertical fixing arm 133 and is immovable. Among them, the fixing member connected to the horizontal fixing arm 132 is arranged along the extending direction of the horizontal fixing arm 132, and the fixing member connected to the vertical fixing arm 133 is arranged along the extending direction of the vertical fixing arm 133.

[0129] Preferably, the moving member can move relative to the fixing member along the setting direction of the fixing member. That is, it moves relative to the fixing member along the extending direction of the horizontal fixing arm 132 or the vertical fixing arm 133.

[0130] Preferably, the microphone 4 is fixedly connected to the moving member on the first slide rail and can move along the fixing member with the moving member, so that the position of the microphone 4 can be adjusted during the test.

[0131] Preferably, the horizontal fixing arm 132 is fixedly connected to the moving member on the second slide rail and can move along the fixing member with the moving member, so that the position of the horizontal fixing arm 132 can be adjusted during the test, and further the position of the microphone 4 can be adjusted.

[0132] Those skilled in the art can understand that the development of the slide rail technology has been relatively mature. In this specification, the specific structures of the first slide rail and the second slide rail are not elaborated in detail here, nor is it limited to what specific structures the first slide rail and the second slide rail are.

[0133] Preferably, the number of the horizontal fixing arms 132 is 3.

[0134] Preferably, the number of the vertical fixing arms 133 is 1.

[0135] Preferably, the number of the microphones 4 is 6.

[0136] Preferably, the number of the horizontal fixing arms 132 is 3 and the number of the vertical fixing arms 133 is 1, and the fixing bracket 13 presents a "king" character shape. As Figure 2 shown, when the three horizontal fixing arms 132 are connected to one vertical fixing arm 133, they present a "king" character shape.

[0137] Figure 6 is a schematic structural diagram of the fixing bracket 13 provided for an embodiment of this specification. As Figure 6 shown, the three horizontal fixing arms 132 are all connected to one vertical fixing arm 133, making the fixing bracket 13 present a "king" character shape.

[0138] Preferably, the microphone bracket 1 is arranged inside the vehicle to be tested, and the extension length of the telescopic rod and the rotation angle of the rotating structure 12 in the horizontal direction and / or the vertical direction are adapted to the seat of the vehicle to be tested, so that the position of the fixed bracket 13 is at the target position. The target position is a preset position corresponding to the user's ears.

[0139] It should be noted that in one or more preferred embodiments provided in this specification, there is a certain distance between the fixed bracket 13 and the microphone 4, and the microphone 4 usually has a certain length, so the target position is not the same as the user's binaural position, but corresponds to the user's binaural position, so that when the fixed bracket 13 is in the target position, the microphone 4 can be close to the user's binaural position. In addition, in a preferred embodiment provided in this specification, a plurality of microphones 4 are fixed on the fixed bracket 13, so when the fixed bracket 13 is in the target position, at least one microphone 4 fixed on the fixed bracket 13 can be close to the user's binaural position.

[0140] The user's ear positions are the positions of the user's ears when the user sits on the seat.

[0141] Preferably, both sides of the horizontal fixed arm 132 are connected to at least one microphone 4 .

[0142] Preferably, the vehicle-mounted audio sound effect testing system also includes a mobile storage device.

[0143] Preferably, the mobile storage device can store the audio data to be played and the plurality of sound data.

[0144] Preferably, the mobile storage device can be connected to the microphone 4 and / or the controller 2 and / or the vehicle speaker 3 for data transmission with the microphone 4 and / or the controller 2 and / or the vehicle speaker 3. The data that the mobile storage device can transmit with the microphone 4 and / or the controller 2 and / or the vehicle speaker 3 includes the audio data to be played and at least one of the multiple sound data.

[0145] Preferably, the controller 2 is a signal analyzer.

[0146] Preferably, the signal analyzer can send a play instruction to the vehicle-mounted speaker 3 , and the play instruction is used to instruct the vehicle-mounted speaker 3 to play the audio data to be played.

[0147] Preferably, the vehicle-mounted audio and sound effect testing system also includes a data acquisition card.

[0148] Preferably, the data acquisition card can provide power for the plurality of microphones 4 .

[0149] Preferably, the data acquisition card is communicatively connected to the plurality of microphones 4 , and is communicatively connected to the controller 2 .

[0150] Preferably, the data acquisition card can collect a plurality of sound data acquired by the plurality of microphones 4 , and send the plurality of sound data to the controller 2 .

[0151] Preferably, the microphone 4 is a RST1000 free-field microphone 4 .

[0152] Preferably, the size of the microphone 4 is 0.25 inches.

[0153] Preferably, the sensitivity of the microphone 4 is 4 mV / Pa.

[0154] Preferably, the frequency bandwidth of the microphone 4 is 20 Hz to 40 kHz.

[0155] Preferably, the dynamic range of the microphone 4 is 35 to 164 dBSPL.

[0156] Preferably, the data acquisition card is equipped with an RS2232 port.

[0157] It should be noted that all actions of acquiring signals, information or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where they are located, and with the authorization given by the owner of the corresponding device.

[0158] In the 1990s, it was very clear whether the improvement of a technology was a hardware improvement (for example, improvements to the circuit structure of diodes, transistors, switches, etc.) or a software improvement (improvement of the method flow). However, with the development of technology, many improvements in the method flow today can be regarded as direct improvements in the hardware circuit structure. Designers almost always obtain the corresponding hardware circuit structure by programming the improved method flow into the hardware circuit. Therefore, it cannot be said that the improvement of a method flow cannot be implemented using a hardware entity module. For example, a programmable logic device (PLD) (such as a field programmable gate array (FPGA)) is such an integrated circuit whose logical function is determined by the user's programming of the device. Designers can "integrate" a digital system on a PLD by programming it themselves, without having to ask a chip manufacturer to design and produce a dedicated integrated circuit chip. Moreover, nowadays, instead of manually making integrated circuit chips, this kind of programming is mostly implemented by "logic compiler" software, which is similar to the software compiler used when developing and writing programs, and the original code before compilation must also be written in a specific programming language, which is called hardware description language (HDL). There is not only one HDL, but many kinds, such as ABEL (Advanced Boolean Expression Language), AHDL (Altera Hardware Description Language), Confluence, CUPL (Cornell University Programming Language), HDCal, JHDL (Java Hardware Description Language), Lava, Lola, MyHDL, PALASM, RHDL (Ruby Hardware Description Language), etc. The most commonly used ones are VHDL (Very-High-Speed ​​Integrated Circuit Hardware Description Language) and Verilog. Those skilled in the art should also know that it is only necessary to program the method flow slightly in the above-mentioned hardware description languages ​​and program it into the integrated circuit, and then it is easy to obtain the hardware circuit that implements the logic method flow.

[0159] The controller can be implemented in any appropriate manner, for example, the controller can take the form of a microprocessor or processor and a computer-readable medium storing a computer-readable program code (such as software or firmware) that can be executed by the (micro)processor, a logic gate, a switch, an application-specific integrated circuit (ASIC), a programmable logic controller, and an embedded microcontroller. Examples of controllers include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicone Labs C8051F320. The memory controller can also be implemented as part of the control logic of the memory. Those skilled in the art also know that in addition to implementing the controller in a purely computer-readable program code manner, the controller can be implemented in the form of a logic gate, a switch, an application-specific integrated circuit, a programmable logic controller, and an embedded microcontroller by logically programming the method steps. Therefore, this controller can be considered as a hardware component, and the devices included therein for implementing various functions can also be regarded as structures within the hardware component. Or even, the devices for implementing various functions can be regarded as both software modules for implementing the method and structures within the hardware component.

[0160] The systems, devices, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0161] For the convenience of description, the above device is described in various units according to their functions. Of course, when implementing this specification, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0162] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0163] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can 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 generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0164] These computer program instructions may also 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 comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0165] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0166] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0167] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0168] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0169] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0170] Those skilled in the art will appreciate that the embodiments of this specification may be provided as methods, systems or computer program products. Therefore, this specification may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, this specification may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0171] This specification may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. This specification may also be practiced in distributed computing environments where tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules may be located in local and remote computer storage media, including storage devices.

[0172] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0173] The above description is only an embodiment of this specification and is not intended to limit this specification. For those skilled in the art, this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification should be included in the scope of the claims of this application.

Claims

1. A vehicle audio sound effect test system, characterized in that: Includes microphone holder, vehicle speaker, controller and multiple microphones: The microphone bracket comprises a bracket base, a rotating structure and a fixed bracket which are connected in sequence; the rotating structure can drive the fixed bracket to rotate along the horizontal direction and / or the vertical direction; the fixed bracket comprises at least one vertical fixed arm and a plurality of horizontal fixed arms, and the fixed bracket is used to fix the plurality of microphones through the plurality of horizontal fixed arms; The plurality of microphones are all in communication connection with the controller and are capable of collecting a plurality of sound data; The vehicle-mounted speaker is used to play the audio data to be played; The controller is communicatively connected to the vehicle speaker and can send the audio data to be played to the vehicle speaker; the controller is also used to obtain and store the multiple sound data, and determine the sound effect test result of the vehicle audio based on the sound data and the audio data to be played.

2. The vehicle audio sound effect testing system according to claim 1, characterized in that: The support base includes a support base and a telescopic rod; The telescopic rod is connected to the rotating structure and can drive the rotating structure and the fixed bracket to rise or fall.

3. The vehicle audio sound effect testing system according to claim 2, characterized in that: The microphone bracket is arranged inside the vehicle to be tested, and the extension length of the telescopic rod and the rotation angle of the rotating structure in the horizontal direction and / or the vertical direction are adapted to the seat of the vehicle to be tested, so that the position of the fixed bracket is at the target position; The target position is a preset position corresponding to the user's ears.

4. The vehicle-mounted audio sound effect testing system according to claim 1, characterized in that: The rotating structure includes a horizontal rotating member and a vertical rotating member connected to each other; The horizontal rotating member is connected to the bracket base, and can drive the vertical rotating member and the fixed bracket to rotate 360 ​​degrees in the horizontal direction; The vertical rotating member is connected to the fixed bracket and can drive the fixed bracket to rotate in a vertical direction.

5. The vehicle-mounted audio sound effect testing system according to claim 1, characterized in that: Both sides of the horizontal fixed arm are connected to at least one microphone.

6. The vehicle-mounted audio sound effect testing system according to claim 1, characterized in that: The horizontal fixed arm is configured with a plurality of connection structures, and different connection structures are at different distances from both ends of the horizontal fixed arm; The connecting structure can be fixedly connected to the microphone to fix the microphone.

7. The vehicle-mounted audio sound effect testing system according to any one of claims 1 to 6, characterized in that: The vehicle-mounted audio and sound effect testing system also includes a mobile storage device; The mobile storage device can store the audio data to be played and the plurality of sound data; The mobile storage device can be connected to the microphone and / or the controller and / or the vehicle-mounted speaker for data transmission with the microphone and / or the controller and / or the vehicle-mounted speaker.

8. The vehicle-mounted audio sound effect testing system according to any one of claims 1 to 6, characterized in that: The controller is a signal analyzer; The signal analyzer can send a play instruction to the vehicle-mounted speaker, and the play instruction is used to instruct the vehicle-mounted speaker to play the audio data to be played.

9. The vehicle-mounted audio sound effect testing system according to any one of claims 1 to 6, characterized in that: The vehicle-mounted audio and sound effect testing system comprises a data acquisition card, and the data acquisition card is capable of supplying power to the plurality of microphones; The data acquisition card is communicatively connected to the plurality of microphones and is communicatively connected to the controller; The data acquisition card can acquire a plurality of sound data acquired by the plurality of microphones, and send the plurality of sound data to the controller.

10. The vehicle audio sound effect testing system according to any one of claims 1 to 6, characterized in that: The vertical fixed arm is connected to the rotating structure and fixedly connected to the multiple horizontal fixed arms, and is used to fix the multiple horizontal fixed arms; The number of the vertical fixed arms is 1; The number of the horizontal fixed arms is three, and the number of the microphones is six.

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