Sound adjustment device and sound supply system

Abstract

The present invention provides a sound adjustment device and sound supply system that, in addition to allowing the user to hear sound waves, produce corresponding effects based on the user's physiological state. [Solution] In the sound supply system 50, the sound adjustment device 100 includes an audio signal receiving member 110, a frequency adjuster 130, and an output port 140. The audio signal receiving member is used to receive audio signals. The frequency adjuster is signal-connected to the audio signal receiving member and is used to adjust the audio signals into a left ear audio signal and a right ear audio signal. The first frequency of the left ear audio signal and the second frequency of the right ear audio signal have a frequency difference. The frequency difference is determined by the frequency adjuster. The output port is used to connect earphones 10, and the left ear audio signal is output to the left ear speaker 12 of the earphones, and the right ear audio signal is output to the right ear speaker 14 of the earphones.

Description

Technical Field

[0001] The present invention relates to an adjustment device and a supply system, and particularly to a sound adjustment device and a sound supply system.

Background Art

[0002] Due to the rapid progress of current technology and the prosperity of audio-visual content, people are using earphones more often in order to listen to music or enjoy audio-visual content while avoiding affecting people around them. However, how to improve the user experience of earphones is an area that earphone manufacturers are constantly working on.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The present invention provides a sound adjustment device and a sound supply system that can allow a user to experience binaural beats.

Means for Solving the Problems

[0004] The sound adjustment device of the present invention includes an audio signal receiving member, a frequency adjuster, and an output port. The audio signal receiving member is used to receive an audio signal. The frequency adjuster is signal-connected to the audio signal receiving member and is used to adjust the audio signal into a left-ear audio signal and a right-ear audio signal. The first frequency of the left-ear audio signal and the second frequency of the right-ear audio signal have a frequency difference. The frequency difference is determined by the frequency adjuster. The output port is used to connect an earphone, and the left-ear audio signal is output to the left-ear speaker of the earphone, and the right-ear audio signal is output to the right-ear speaker of the earphone.

[0005] The sound supply system of the present invention includes a physiological information sensor, a processor, and a sound adjustment device. The physiological information sensor is used to sense the user's physiological information. The processor receives physiological information by being signal-connected to the physiological information sensor and generates physiological state information based on the physiological information. The sound adjustment device includes an audio signal receiving member, a physiological state information receiving member, a frequency adjuster, and an output port. The audio signal receiving member is used to receive audio signals. The physiological state information receiving member is used to receive physiological state information. The frequency adjuster is signal-connected to the audio signal receiving member and the physiological state information receiving member and is used to adjust the audio signals into a left ear audio signal and a right ear audio signal. The first frequency of the left ear audio signal and the second frequency of the right ear audio signal have a frequency difference. The frequency difference is determined by the frequency adjuster based on the physiological state information. The output port is used to output the left ear audio signal to the left ear speaker of the earphones and the right ear audio signal to the right ear speaker of the earphones.

[0006] In one embodiment of the present invention, the frequency difference automatically undergoes cyclical fluctuations over time.

[0007] In one embodiment of the present invention, physiological state information indicates that the user's physiological state is awake, about to fall asleep, or asleep.

[0008] In one embodiment of the present invention, the sound adjustment device further includes a sound source which is signal-connected to an audio signal receiving member and used to provide an audio signal.

[0009] In one embodiment of the present invention, the sound source internally stores an audio signal or generates an audio signal by program.

[0010] In one embodiment of the present invention, the processor is separated from the sound adjustment device, and the physiological state information receiving member receives physiological state information wirelessly.

[0011] In one embodiment of the present invention, the processor is built into a sound adjustment device.

[0012] In one embodiment of the present invention, the sound adjustment device is a mobile phone.

[0013] In one embodiment of the present invention, the output port is a wired connector or a wireless signal transmitter. [Effects of the Invention]

[0014] Based on the above, the sound adjustment device and sound supply system of the present invention can produce effects for the user in addition to hearing sound waves, based on the user's physiological state. [Brief explanation of the drawing]

[0015] [Figure 1] This is a circuit block diagram of a sound supply system and sound adjustment device according to one embodiment of the present invention. [Figure 2] This is a circuit block diagram of a sound supply system and sound adjustment device according to another embodiment of the present invention. [Figure 3] This is a circuit block diagram of a sound adjustment device according to yet another embodiment of the present invention. [Modes for carrying out the invention]

[0016] Figure 1 is a circuit block diagram of a sound supply system and sound adjustment device according to one embodiment of the present invention. Referring to Figure 1, the sound supply system 50 of this embodiment includes a physiological information sensor 52, a processor 54, and a sound adjustment device 100 according to one embodiment of the present invention. The physiological information sensor 52 is used to sense the user's physiological information. The generated information measured by the physiological information sensor 52 may include one or more physiological information such as heart rate, blood pressure, sweat level, and video image. The physiological information sensor 52 may be worn on the user's body at all times or may be specialized medical equipment.

[0017] The processor 54 receives physiological information by being connected to the physiological state sensor 52 and generates physiological state information based on the physiological information. The physiological state information indicates, for example, that the user's physiological state is awake, about to fall asleep, or asleep, but the present invention is not limited to this.

[0018] The sound adjustment device 100 of this embodiment includes an audio signal receiving member 110, a physiological state information receiving member 120, a frequency adjuster 130, and an output port 140. The audio signal receiving member 110 is used to receive audio signals. The physiological state information receiving member 120 is used to receive physiological state information. The frequency adjuster 130 is signal-connected to the audio signal receiving member 110 and the physiological state information receiving member 120, and is used to adjust the audio signals into a left ear audio signal and a right ear audio signal. The first frequency of the left ear audio signal and the second frequency of the right ear audio signal have a frequency difference. The frequency difference is determined by the frequency adjuster 130 based on the physiological state information. That is, based on the difference in the received physiological state information, the frequency adjuster 130 may use different methods to adjust the audio signals and adjust the audio signals to make the frequency difference between the first frequency of the left ear audio signal and the second frequency of the right ear audio signal different.

[0019] The output port 140 is used to connect the earphones 10 and outputs the left ear audio signal to the left ear speaker 12 of the earphones 10, and the right ear audio signal to the right ear speaker 14 of the earphones 10. The left ear speaker 12 and the right ear speaker 14 transmit the left ear audio signal and the right ear audio signal to the user in the form of sound waves, respectively. With this method, there is a frequency difference between the sound waves received by the user's left ear and the sound waves received by the right ear, and this difference in frequency gives the user different sensations. The output port 140 may be a wired connector such as a 3.5φ audio connector or a USB Type-C connector, or it may be a wireless signal transmitter such as Bluetooth®.

[0020] In the sound adjustment device and sound supply system of this embodiment, the frequency adjuster determines the frequency difference based on the physiological state information, enabling the user to obtain corresponding effects when receiving sound waves based on their own physiological state.

[0021] Brain waves are electrical fluctuations generated when nerve cells in a person's brain are active, and can also be said to be the rhythm of brain cell activity. At any time, a person's brain generates brain waves. Based on frequency classification, brain waves include at least beta waves, alpha waves, theta waves, delta waves, and gamma waves. Generally, when a person is in the third stage of non-REM sleep, their brain waves are usually delta waves (with a frequency between 0.5 Hz and 4 Hz). When a person is in a deep sleep and dreaming, in a deep meditation, or in a state with a strong subjective feeling, their brain waves are usually theta waves (with a frequency between 4 Hz and 8 Hz). When a person is in a state where their head is hazy before sleep, their consciousness is gradually becoming ambiguous, an inspiration has occurred, their body and mind are relaxed, and their attention is heightened, their brain waves are usually alpha waves. When a person is in a state of being mentally concentrated while relaxed or organizing previously received information, their brain waves are usually beta waves. However, research has shown that when a person's brain is induced to generate different brain waves, it conversely affects the person's state. For example, when a person's brain is induced to generate alpha waves, the person is brought inspiration and is led to a state of relaxation of the body and mind and heightened attention.

[0022] By adjusting the frequency of the audio signal by the frequency adjuster 130, the frequency difference between the first frequency of the left ear audio signal and the second frequency of the right ear audio signal can be set. The user's brain is induced to generate beta waves, alpha waves, theta waves, delta waves, gamma waves, or other brain waves, and the user is made to enter the corresponding state described above, thereby achieving effects such as improved concentration, comfortable sleep, stress relief, and entering meditation.

[0023] In this embodiment, the frequency difference may cyclically fluctuate over time. In other words, the frequency difference is not fixed or immovable. Furthermore, this frequency difference may fluctuate automatically in a predetermined manner without requiring human intervention. In addition, the method of fluctuation of this frequency difference may be predetermined, or there may be multiple fluctuation methods, and the user may choose which fluctuation method to use. Moreover, before determining the method of fluctuation of the frequency difference, the user's physiological state may be measured, and a preferred method of fluctuation of the frequency difference may be determined and reflected in the differences in the user's physiological state. However, by providing an interface, the user may be allowed to make some adjustments to the method of fluctuation of the frequency difference. For example, the sound adjustment device 100 may be a mobile phone, and the mobile phone may optionally provide a corresponding application program. Through the interface provided by the application program, the user can adjust the frequency difference or the method of fluctuation of the frequency difference. Naturally, the user may have the sound adjustment device 100 adjust the audio signal by adopting a different method based on the differences in the received physiological state information, using a predetermined method.

[0024] For example, the frequency difference may automatically and stepwise cyclically fluctuate between 8Hz and 12Hz. Each fluctuation in the frequency difference is 0.1Hz, and the same frequency difference is maintained for 10 seconds after each fluctuation. Automatic and stepwise cyclical fluctuation of the frequency difference between 8Hz and 12Hz means, for example, gradually fluctuating from 8Hz to 12Hz and then gradually fluctuating from 12Hz to 8Hz, or, for example, repeatedly fluctuating from 8Hz to 12Hz, or, for example, repeatedly fluctuating from 12Hz to 8Hz.

[0025] In this embodiment, the frequency difference may induce delta waves by automatically circulating and varying between 0.5 Hz and 4 Hz. The frequency difference may induce theta waves by automatically circulating and varying between 4 Hz and 8 Hz. The frequency difference may induce alpha waves by automatically circulating and varying between 8 Hz and 12 Hz. The frequency difference may induce beta waves by automatically circulating and varying between 12 Hz and 20 Hz. The frequency difference may induce gamma waves by automatically circulating and varying between 25 Hz and 40 Hz. In addition, in this embodiment, when limited to a time period that is not sufficiently long, the frequency difference may only increase gradually or only decrease gradually.

[0026] The brain of each user can not only produce a favorable induction effect for a single frequency difference, but usually can also produce a favorable induction effect for any of a plurality of frequency differences. Since the sound adjustment device of this embodiment induces the user with a frequency difference that automatically circulates and varies, it can produce a favorable induction effect at a plurality of frequency differences. Even if the subject has a favorable induction effect for the single frequency difference input, the duration of the effect may not be long. The sound adjustment device of this embodiment induces the user with a frequency difference that automatically circulates and varies and automatically circulates and varies within the selected range, so that after the user's brain becomes fatigued, it can be converted to another frequency difference to produce a favorable induction effect again. Finally, the sound adjustment device of this embodiment can produce a favorable brain wave induction effect over a relatively long period of time.

[0027] In this embodiment, the processor 54 is separated from the sound adjustment device 100, and the physiological state information receiving member 120 receives physiological state information wirelessly. For example, the processor 54 may be a cloud device that receives physiological information from the physiological information sensor 52 via a wireless or wired network. The processor 54 determines the physiological state information based on the physiological information in a preset manner, and then wirelessly transmits the physiological state information to the physiological state information receiving member 120. Optionally, when the processor 54 determines the physiological state information, it may confirm the physiological state information with the cooperation of an expert and, if necessary, adjust the physiological state information transmitted to the physiological state information receiving member 120.

[0028] In this embodiment, the audio signal receiving member 110 may receive audio signals from an external sound source 20 via a wireless or wired network. The audio signals may be stereo or monaural, and the present invention is not limited thereto. The left ear speaker 12 and the right ear speaker 14 may be earphones, and may employ, for example, dynamic speakers, balanced armature speakers, bone conduction speakers, or other types of speakers.

[0029] Figure 2 is a circuit block diagram of a sound supply system and sound adjustment device according to another embodiment of the present invention. The sound supply system 60 of this embodiment is substantially the same as the sound supply system 50 of Figure 1, and the differences between the two will be mainly explained here. In the sound supply system 60 of this embodiment, the sound adjustment device 102 of this embodiment further includes a sound source 160, and the processor 150 is built into the sound adjustment device 102. The sound source 160 is signal-connected to the audio signal receiving member 110 and used to provide audio signals. The sound source 160, for example, stores audio signals internally in advance. The audio signals may be general music, audio signals pre-recorded by the user, audio signals generated by a program, or other audio signals.

[0030] In one embodiment (not shown), only the sound source is built into the sound adjustment device, and the processor does not have to belong to the sound adjustment device. In another embodiment (not shown), only the processor is built into the sound adjustment device, and the sound source does not have to belong to the sound adjustment device.

[0031] Figure 3 is a circuit block diagram of yet another embodiment of the sound adjustment device of the present invention. The sound adjustment device 104 of this embodiment is generally identical to the sound supply system 50 of Figure 1, and the differences between the two will be mainly explained here. The sound adjustment device 104 of this embodiment includes an audio signal receiving member 110, a frequency adjuster 130, and an output port 140, but does not include the physiological state information receiving member 120 of Figure 1. The frequency difference is determined by the frequency adjuster 130. Therefore, the sound adjustment device 104 of this embodiment does not determine the frequency difference based on physiological state information, but rather determines the frequency difference in a preset mode or by allowing the user to select a mode, thereby obtaining the corresponding effect when listening to sound waves.

[0032] To summarize the above, in the sound adjustment device and sound supply system of the present invention, the sound waves received by both ears have a frequency difference, and the frequency difference is determined by a frequency adjuster, for example, based on physiological state information, but is not limited to this. When determining the frequency difference based on physiological state information, it is possible to judge the user's physiological state with more accurate information, and to determine what kind of frequency difference the user needs at that time based on the user's physiological state, and to produce the corresponding effect after the user listens to the sound waves. [Industrial applicability]

[0033] The present invention can be used in sound adjustment devices and sound supply systems. [Explanation of Symbols]

[0034] 10: Earphones 12: Left ear speaker 14: Right ear speaker 20,160: Sound source 50, 60: Sound supply system 52: Physiological Information Sensor 54,150: Processor 100, 102, 104: Sound adjustment device 110: Audio signal receiving member 120: Physiological state information receiving member 130: Frequency regulator 140: Output port

Claims

1. An audio signal receiving member used to receive an audio signal, A frequency adjuster is connected to the aforementioned audio signal receiving member and is used to adjust the audio signal into a left ear audio signal and a right ear audio signal. An output port used to connect earphones, which outputs the left ear audio signal to the left ear speaker of the earphones and the right ear audio signal to the right ear speaker of the earphones. Includes, The first frequency of the left ear audio signal and the second frequency of the right ear audio signal have a frequency difference, and this frequency difference is determined by the frequency adjuster. Sound adjustment device.

2. The aforementioned frequency difference automatically undergoes cyclical fluctuations over time. The sound adjustment device according to claim 1.

3. The output port is either a wired connector or a wireless signal transmitter. The sound adjustment device according to claim 1.

4. A sound source connected to the aforementioned audio signal receiving member and used to provide the aforementioned audio signal. This also includes, The sound adjustment device according to claim 1.

5. The sound source internally stores the audio signal, or generates the audio signal using a program. The sound adjustment device according to claim 4.

6. The aforementioned sound adjustment device is a mobile phone. The sound adjustment device according to claim 1.

7. A physiological information sensor used to sense the user's physiological information, A processor that acquires physiological information by being connected to the physiological information sensor and generates physiological state information based on the physiological information, An audio signal receiving member used to receive an audio signal, A physiological state information receiving member, which receives the physiological state information by being connected to the processor, A frequency adjuster is connected to the audio signal receiving member and the physiological state information receiving member, and is used to adjust the audio signal into a left ear audio signal and a right ear audio signal. A sound adjustment device including an output port used to output the left ear audio signal to the left ear speaker and the right ear audio signal to the right ear speaker, Includes, The first frequency of the left ear audio signal and the second frequency of the right ear audio signal have a frequency difference, and this frequency difference is determined by the frequency adjuster based on the physiological state information. Sound supply system.

8. The aforementioned frequency difference automatically undergoes cyclical fluctuations over time. The sound supply system according to claim 7.

9. The physiological state information indicates that the user's physiological state is awake, about to fall asleep, or asleep. The sound supply system according to claim 7.

10. The sound adjustment device further includes a sound source that is signal-connected to the audio signal receiving member and used to provide the audio signal. The sound supply system according to claim 7.

11. The sound source internally stores the audio signal, or generates the audio signal using a program. The sound supply system according to claim 10.

12. The processor is separated from the sound adjustment device, and the physiological state information receiving member receives the physiological state information wirelessly. The sound supply system according to claim 7.

13. The processor is built into the sound adjustment device. The sound supply system according to claim 7.

14. The aforementioned sound adjustment device is a mobile phone. The sound supply system according to claim 7.

Images