Headphone with Automatic Volume Adjustment Function and Volume Adjustment Method

Abstract

The present invention discloses an earphone with an automatic volume adjustment function, which includes an earphone body and a sound output part. The earphone body includes a front cavity MIC near the sound output part to collect the ambient audio signal of the sound output part; a front cavity audio conversion circuit to convert the ambient audio signal collected by the front cavity MIC into a corresponding ambient audio electrical signal; a rear cavity MIC to collect the external real-time ambient sound signal; a rear cavity audio conversion circuit to convert the external real-time ambient sound signal collected by the rear cavity MIC into a corresponding external real-time ambient sound electrical signal; a processing and control module to analyze and process the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, and combine the pre-stored basic playback volume data ratio to obtain the required playback volume, and adjust and control the playback volume to be equal to the required playback volume. The present invention also discloses a volume adjustment method to automatically adjust the volume.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent terminal control, and particularly to a headset with an automatic volume adjustment function and a volume adjustment method. Background Art

[0002] Headsets are widely used in people's daily lives. With headsets, people can listen to music and other content anytime and anywhere without disturbing others. However, since the volume emitted by the headset directly reaches the human ear, if the volume of the headset is too loud, it will seriously affect the user's comfort and may even harm the user's hearing; if the volume of the headset is too small, the user will not be able to hear clearly, affecting the user's usage effect.

[0003] Currently, if a user wants to adjust the volume of a headset, usually the electronic device (such as a computer, mobile phone, etc.) connected to the headset needs to be directly adjusted, or the button on the headset connection line needs to be adjusted. That is, the existing headset volume adjustment methods are mostly manual adjustment by the user. However, in many situations, such as when the user is driving or carrying heavy objects in both hands, since both hands cannot be freed, manual adjustment cannot be performed, thus seriously affecting the user's usage effect and even endangering the health of both ears of the user.

[0004] In view of this, it is necessary to provide a headset with an automatic volume adjustment function and a volume adjustment method that can solve the above-mentioned defects to automatically adjust the volume of the headset. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a headset with an automatic volume adjustment function and a volume adjustment method to automatically adjust the volume of the headset.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: An earphone with an automatic volume adjustment function, comprising an earphone body and a sound output part. The earphone body includes a front cavity MIC, a front cavity audio conversion circuit, a rear cavity MIC, a rear cavity audio conversion circuit, and a processing and control module. The front cavity MIC is close to the sound output part and is used to collect the ambient audio signal of the sound output part; the front cavity audio conversion circuit is electrically connected to the front cavity MIC and is used to convert according to the ambient audio signal collected by the front cavity MIC to obtain a corresponding ambient audio electrical signal; the rear cavity MIC is arranged on the earphone body and is used to collect external real-time ambient sound signals; the rear cavity audio conversion circuit is electrically connected to the rear cavity MIC and is used to convert according to the external real-time ambient sound signal collected by the rear cavity MIC to obtain a corresponding external real-time ambient sound electrical signal; the processing and control module is respectively electrically connected to the front cavity audio conversion circuit and the rear cavity audio conversion circuit and is used to analyze and process the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, and combine the ratio of the pre-stored basic volume threshold and the pre-stored basic playback volume data to obtain the required playback volume, and adjust and control the playback volume to be equal to the required playback volume.

[0007] Its further technical solution is: The processing and control module includes a processing unit and a main control unit. The processing unit is respectively electrically connected to the front cavity audio conversion circuit and the rear cavity audio conversion circuit and is used to analyze and process the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, and combine the pre-stored ratio of the basic playback volume data to analyze and obtain the required playback volume; the main control unit is electrically connected to the processing unit and is used for mutual data transmission and for adjusting and controlling the playback volume according to the required playback volume.

[0008] Its further technical solution is: A speaker is provided in the earphone body. The speaker is arranged facing the sound output part and is electrically connected to the main control unit, so that the main control unit controls the speaker to play audio and adjusts and controls the playback volume of the speaker according to the required playback volume analyzed by the processing unit.

[0009] Its further technical solution is: The main control unit includes a Bluetooth unit for communicating with the Bluetooth module of the intelligent terminal.

[0010] Its further technical solution is: A volume control button is provided on the earphone body. The volume control button is electrically connected to the main control unit and is used for manually adjusting the volume.

[0011] Its further technical solution is: The processing unit includes a storage unit for storing a preset basic playback volume and for storing the ratio of basic playback volume data.

[0012] Its further technical solution is: The earphone body further includes a battery, and the battery is electrically connected to the front cavity MIC, the front cavity audio conversion circuit, the rear cavity MIC, the rear cavity audio conversion circuit, and the processing and control module respectively to provide a working power supply for them.

[0013] To solve the above technical problems, the present invention also provides a volume adjustment method, including the following steps:

[0014] The front cavity MIC collects the ambient audio signal currently played by the sound output part;

[0015] The front cavity audio conversion circuit processes and converts according to the collected ambient audio signal to obtain a corresponding ambient audio electrical signal converted from the audio signal;

[0016] The rear cavity MIC collects external real-time ambient sound signals;

[0017] The rear cavity audio conversion circuit converts according to the collected external real-time ambient sound signal to obtain a corresponding external real-time ambient sound electrical signal;

[0018] The processing and control module analyzes and processes the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, combines the pre-stored ratio of basic playback volume data, obtains the required playback volume, and adjusts and controls the playback volume to be equal to the required playback volume.

[0019] Its further technical solution is: The step that the processing and control module analyzes and processes the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, combines the pre-stored ratio of basic playback volume data, obtains the required playback volume, and adjusts and controls the playback volume to be equal to the required playback volume specifically includes:

[0020] The processing and control module analyzes and processes the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data;

[0021] Combined with the pre-stored ratio of basic playback volume data, it is judged whether the ratio between the ambient audio volume data and the external real-time ambient sound volume data is equal to the ratio of the basic playback volume data;

[0022] When the ratio between the ambient audio volume data and the external real-time ambient sound volume data is not equal to the ratio of the base playback volume data, obtain the corresponding required ambient audio volume data according to the external real-time ambient sound volume data and the ratio of the base playback volume data, and analyze and obtain the corresponding required playback volume according to the required ambient audio volume data;

[0023] Adjust and control the playback volume to be equal to the required playback volume.

[0024] A further technical solution thereof is that before the step of the front cavity MIC collecting the ambient audio signal of the sound output part, it includes:

[0025] The processing and control module receives and stores the preset base playback volume, and controls the sound output part to play the preset debugging audio according to the preset base playback volume;

[0026] The front cavity MIC collects the preliminary ambient audio signal of the sound output part;

[0027] The front cavity audio conversion circuit converts according to the collected preliminary ambient audio signal to obtain the corresponding preliminary ambient audio electrical signal;

[0028] The rear cavity MIC collects the preliminary external ambient sound signal;

[0029] The rear cavity audio conversion circuit converts according to the collected preliminary external ambient sound signal to obtain the corresponding preliminary external ambient sound electrical signal;

[0030] The processing and control module receives the preliminary ambient audio electrical signal and the preliminary external ambient sound electrical signal, analyzes and processes them to obtain the corresponding preliminary ambient audio volume data and preliminary external ambient sound volume data, calculates the ratio between the two, and saves this ratio as the ratio of the base playback volume data.

[0031] The beneficial technical effects of the present invention are as follows: The headphones with an automatic volume adjustment function of the present invention convert ambient audio signals into corresponding ambient audio electrical signals by setting a front cavity MIC and a front cavity audio conversion circuit, and convert external real-time ambient sound signals into corresponding external real-time ambient sound electrical signals by setting a rear cavity MIC and a rear cavity audio conversion circuit. The processing and control module analyzes and processes the ambient audio electrical signals and external real-time ambient sound electrical signals to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, combines the pre-stored ratio of basic playback volume data, obtains the required playback volume, adjusts and controls the playback volume to be equal to the required playback volume, realizes the automatic volume adjustment of the headphones, can avoid the relatively small headphone volume caused by the large external ambient sound volume, which affects the user's listening to audio content, ensures the audio playback quality, and can avoid the relatively large headphone volume caused by the small external ambient sound volume, which causes hearing damage to the human ear and protects the health of the user's both ears. The volume adjustment method of the present invention has the above functions to realize the automatic volume adjustment of the headphones and protect the health of the user's both ears. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a structural block diagram of the headphones with an automatic volume adjustment function of the present invention;

[0033] Figure 2 is a flowchart of the volume adjustment method of the present invention;

[0034] Figure 3 is a sub-flowchart of the volume adjustment method of the present invention;

[0035] Figure 4 is a specific flowchart of the volume adjustment method of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] In order to enable those of ordinary skill in the art to more clearly understand the purpose, technical solutions and advantages of the present invention, the following further elaborates on the present invention with reference to the accompanying drawings and embodiments.

[0037] Refer to Figure 1, the earphone 10 with an automatic volume adjustment function of the present invention is communicatively connected to the intelligent terminal 20, and includes an earphone body 11 and a sound output part 12. The earphone body 11 includes a front shell and a rear shell. The front end of the front shell is the front cavity of the earphone, and the rear end of the front shell is connected to the rear shell to form the rear cavity of the earphone. The earphone body 11 includes a front cavity MIC 111, a front cavity audio conversion circuit 112, a rear cavity MIC 113, a rear cavity audio conversion circuit 114 and a processing and control module 115. The front cavity MIC 111 is arranged at the front cavity and close to the sound output part 12, and is used for collecting the ambient audio signal of the sound output part 12; the front cavity audio conversion circuit 112 is electrically connected to the front cavity MIC 111, and is used for converting according to the ambient audio signal collected by the front cavity MIC to obtain a corresponding ambient audio electrical signal; the rear cavity MIC 113 is arranged on the earphone body 11 and located at the rear cavity, and is used for collecting the external real-time ambient sound signal; the rear cavity audio conversion circuit 114 is electrically connected to the rear cavity MIC 113, and is used for converting according to the external real-time ambient sound signal collected by the rear cavity MIC to obtain a corresponding external real-time ambient sound electrical signal; the processing and control module 115 is respectively electrically connected to the front cavity audio conversion circuit 112 and the rear cavity audio conversion circuit 114, and is used for analyzing and processing according to the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, and combining the pre-stored basic playback volume data ratio to obtain the required playback volume, and adjusting and controlling the playback volume to be equal to the required playback volume.

[0038] Among them, the ambient audio signal of the sound output part refers to the audio signal heard by the user's ears, including the audio signal played by the sound output part and the ambient sound signal at the sound output part. The external real-time ambient sound signal refers to the ambient sound signal around the user. The earphone 10 with the automatic volume adjustment function converts the ambient audio signal into a corresponding ambient audio electrical signal by setting the front cavity MIC 111 and the front cavity audio conversion circuit 112, and converts the external real-time ambient sound signal into a corresponding external real-time ambient sound electrical signal by the rear cavity MIC 113 and the rear cavity audio conversion circuit 114. Through the processing control module 115, according to the ambient audio electrical signal and the external real-time ambient sound electrical signal, the corresponding ambient audio volume data and external real-time ambient sound volume data are analyzed and processed. Combining with the pre-stored basic playback volume data ratio, the required playback volume is obtained, and the playback volume is adjusted and controlled to be equal to the required playback volume, realizing the automatic volume adjustment of the earphone. It can avoid the relatively small earphone volume caused by the large external ambient sound volume, which affects the user's listening to the audio content, ensure the audio playback quality, and can avoid the relatively large earphone volume caused by the small external ambient sound volume, which causes hearing damage to the human ear and protects the health of the user's both ears. The intelligent terminal 20 can be an electronic device such as a mobile phone, a tablet computer, and a notebook computer.

[0039] Specifically, in this embodiment, the processing control module 115 includes a processing unit 116 and a main control unit 117. The processing unit 116 is electrically connected to the front cavity audio conversion circuit 112 and the rear cavity audio conversion circuit 114 respectively, and is used for analyzing and processing the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain the corresponding ambient audio volume data and external real-time ambient sound volume data, and combining with the pre-stored basic playback volume data ratio, analyzing and obtaining the required playback volume; The main control unit 117 is electrically connected to the processing unit, and is used for mutual data transmission, and is used for adjusting and controlling the playback volume according to the required playback volume.

[0040] Specifically, in this embodiment, a speaker 118 is provided in the earphone body. The speaker 118 is arranged facing the sound output part 12 and is electrically connected to the main control unit 117, so that the main control unit 117 controls the speaker to play audio and adjusts and controls the playback volume of the speaker 118 according to the required playback volume analyzed by the processing unit 116, so that the playback volume is equal to the required playback volume, realizing the automatic adjustment of the earphone volume. The main control unit 117 is used for controlling the speaker 118 to play audio. The processing unit 116 transmits the information of the required playback volume obtained by analysis to the main control unit 117, so that the main control unit 117 adjusts and controls the playback volume of the audio played by the speaker 118 according to the received information of the required playback volume.

[0041] Preferably, in this embodiment, the main control unit 117 includes a Bluetooth unit 1171 for communicatively connecting with the Bluetooth module 201 of the smart terminal 20. The main control unit 117 receives the play instruction information transmitted by the smart terminal 20 via the Bluetooth module 201 through the Bluetooth unit 1171, processes it to obtain the audio information to be played, and controls the speaker 118 to play the audio information to be played. Moreover, the main control unit 117 adjusts the playback volume of the speaker 118 according to the required playback volume analyzed by the processing unit 116. Specifically, a volume control button 13 is provided on the earphone body 11, and the volume control button 13 is electrically connected to the main control unit 117 for manually adjusting the volume. When the user feels that the volume is too high or too low, the volume can also be manually adjusted directly by pressing the volume control button 13.

[0042] When the user sets the basic playback volume, the volume can be adjusted to the volume required by the user by pressing the volume control button 13. Through the communicative connection between the Bluetooth unit 1171 and the Bluetooth module 201 of the smart terminal 20, the basic playback volume can be set on the smart terminal 20 by pressing the volume control button 13. Then, the main control unit 117 of the processing and control module 115 receives the basic playback volume set by the user and transmits it to the processing unit 116 for storage in the storage unit 1161. The main control unit 117 of the processing and control module 115 controls the speaker 118 to play the preset debugging audio according to the preset basic playback volume, so that the sound output part 12 plays the debugging audio of the basic playback volume; the front cavity MIC 111 collects the preliminary ambient audio signal of the sound output part 12; the front cavity audio conversion circuit 112 converts according to the collected preliminary ambient audio signal to obtain the corresponding preliminary ambient audio electrical signal; the rear cavity MIC 113 collects the preliminary external ambient sound signal; the rear cavity audio conversion circuit 114 converts according to the collected preliminary external ambient sound signal to obtain the corresponding preliminary external ambient sound electrical signal; the processing unit 116 of the processing and control module 115 receives the preliminary ambient audio electrical signal and the preliminary external ambient sound electrical signal, analyzes and processes them to obtain the corresponding preliminary ambient audio volume data and preliminary external ambient sound volume data, calculates the ratio between the two, and stores the ratio as the basic playback volume data ratio. Among them, the preliminary ambient audio signal of the sound output part refers to the audio signal heard by the user's ear when the sound output part plays the debugging audio, including the debugging audio signal played by the sound output part and the ambient sound signal at the sound output part. The preliminary external real-time ambient sound signal refers to the ambient sound signal around the user when the sound output part plays the debugging audio. The basic playback volume refers to the volume at which the user can clearly hear the content of the played audio and feels comfortable listening under normal circumstances.

[0043] Specifically, the processing unit 116 includes a storage unit 1161 for storing a preset basic playback volume and for storing the data ratio of the basic playback volume. The user sets the basic playback volume through the smart terminal 20. The smart terminal 20 transmits the information of the basic playback volume set by the user to the main control unit 117 of the processing control module 115 through the communication connection of the Bluetooth module 201 with the Bluetooth unit 1171. The main control unit 117 transmits the information of the basic playback volume to the processing unit 116 for storage in the storage unit 1161. The Bluetooth unit 1171 can be a Bluetooth chip, and the Bluetooth chip communicates with the Bluetooth module 201 of the smart terminal 20 through an antenna.

[0044] Preferably, in this embodiment, the earphone body further includes a battery. The battery is electrically connected to the front cavity MIC 111, the front cavity audio conversion circuit 112, the rear cavity MIC 113, the rear cavity audio conversion circuit 114, and the processing control module 115 respectively to provide a working power supply for them. Among them, a charging chip may also be included in the earphone body 11. The output end of the charging chip is electrically connected to the input end of the battery, and the output end of the battery is electrically connected to the power interface of the main control unit 117 to provide a working power supply for the main control unit 117.

[0045] During operation, the front cavity MIC111 collects the ambient audio signal of the sound output part; the front cavity audio conversion circuit 112 converts the ambient audio signal into a corresponding ambient audio electrical signal; the rear cavity MIC113 collects the external real-time ambient sound signal; the rear cavity audio conversion circuit 114 converts the external real-time ambient sound signal into a corresponding external real-time ambient sound electrical signal; the processing unit 116 of the processing and control module 115 analyzes and processes the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data; the processing unit 116 determines whether the ratio between the ambient audio volume data and the external real-time ambient sound volume data is equal to the pre-stored basic playback volume data ratio according to the pre-stored basic playback volume data ratio; when the ratio between the ambient audio volume data and the external real-time ambient sound volume data is not equal to the basic playback volume data ratio, the processing unit 116 obtains the corresponding required ambient audio volume data according to the external real-time ambient sound volume data and the basic playback volume data ratio, and analyzes and obtains the corresponding required playback volume according to the required ambient audio volume data; the main control unit 117 of the processing and control module 115 adjusts and controls the playback volume according to the required playback volume analyzed by the processing unit 116, realizing the automatic volume adjustment of the earphone, which can avoid the relatively small earphone volume caused by the large external ambient sound volume and affect the user's listening to audio content, ensure the audio playback quality, and can avoid the relatively large earphone volume caused by the small external ambient sound volume and cause hearing damage to the human ear, protecting the health of the user's both ears. In addition, the user can manually adjust the playback volume by pressing the volume control button 13.

[0046] Referring to Figure 2 , the volume adjustment method of the present invention includes the following steps:

[0047] Step S11, the front cavity MIC collects the ambient audio signal of the sound output part. Among them, the ambient audio signal of the sound output part refers to the audio signal heard by the user's ear, including the audio signal played by the sound output part and the ambient sound signal at the sound output part.

[0048] Step S12, the front cavity audio conversion circuit converts according to the collected ambient audio signal to obtain a corresponding ambient audio electrical signal.

[0049] Step S13, the rear cavity MIC collects the external real-time ambient sound signal. Among them, the external real-time ambient sound signal refers to the ambient sound signal around the user.

[0050] Step S14, the rear cavity audio conversion circuit converts according to the collected external real-time ambient sound signal to obtain a corresponding external real-time ambient sound electrical signal.

[0051] Step S15: The processing and control module analyzes and processes the environmental audio electrical signal and the external real-time environmental sound electrical signal to obtain corresponding environmental audio volume data and external real-time environmental sound volume data, combines the pre-stored basic playback volume data ratio, obtains the required playback volume, and adjusts and controls the playback volume to be equal to the required playback volume.

[0052] The front cavity MIC and the front cavity audio conversion circuit are used to convert the environmental audio signal into a corresponding environmental audio electrical signal, the rear cavity MIC and the rear cavity audio conversion circuit are used to convert the external real-time environmental sound signal into a corresponding external real-time environmental sound electrical signal, and the processing and control module analyzes and processes the environmental audio electrical signal and the external real-time environmental sound electrical signal to obtain corresponding environmental audio volume data and external real-time environmental sound volume data, combines the pre-stored basic playback volume data ratio, obtains the required playback volume, and adjusts and controls the playback volume to be equal to the required playback volume, realizing the automatic volume adjustment of the earphone. It can avoid the relatively small earphone volume caused by the large external environmental sound volume, which affects the user's listening to audio content, ensure the audio playback quality, and can also avoid the relatively large earphone volume caused by the small external environmental sound volume, which causes hearing damage to the human ear and protects the health of the user's ears.

[0053] Refer to Figure 3 , specifically, the step S15 specifically includes:

[0054] Step S151: The processing and control module analyzes and processes the environmental audio electrical signal and the external real-time environmental sound electrical signal to obtain corresponding environmental audio volume data and external real-time environmental sound volume data.

[0055] Step S152: Combine the pre-stored basic playback volume data ratio, and judge whether the ratio between the environmental audio volume data and the external real-time environmental sound volume data is equal to the basic playback volume data ratio.

[0056] Step S153: When the ratio between the environmental audio volume data and the external real-time environmental sound volume data is not equal to the basic playback volume data ratio, obtain the corresponding required environmental audio volume data according to the external real-time environmental sound volume data and the basic playback volume data ratio, and analyze and obtain the corresponding required playback volume according to the required environmental audio volume data.

[0057] Step S154: Adjust and control the playback volume to be equal to the required playback volume.

[0058] Preferably, after the step S152, it further includes: Step S153.1: When the ratio between the environmental audio volume data and the external real-time environmental sound volume data is equal to the basic playback volume data ratio, return to execute step S11.

[0059] Reference Figure 4 , specifically, before step S11, the following steps are further included:

[0060] Step S101: The processing control module receives and stores a preset basic playback volume, and controls the sound output unit to play a preset debugging audio according to the preset basic playback volume.

[0061] Step S102: The front cavity MIC collects a preliminary ambient audio signal of the sound output unit. Wherein, the preliminary ambient audio signal of the sound output unit refers to the audio signal that the user's ear hears when the sound output unit plays the debugging audio, including the debugging audio signal played by the sound output unit and the ambient sound signal at the sound output unit.

[0062] Step S103: The front cavity audio conversion circuit converts according to the collected preliminary ambient audio signal to obtain a corresponding preliminary ambient audio electrical signal.

[0063] Step S104: The rear cavity MIC collects a preliminary external ambient sound signal. Wherein, the preliminary external real-time ambient sound signal refers to the ambient sound signal around the user when the sound output unit plays the debugging audio.

[0064] Step S105: The rear cavity audio conversion circuit converts according to the collected preliminary external ambient sound signal to obtain a corresponding preliminary external ambient sound electrical signal.

[0065] Step S106: The processing control module receives the preliminary ambient audio electrical signal and the preliminary external ambient sound electrical signal, analyzes and processes them to obtain corresponding preliminary ambient audio volume data and preliminary external ambient sound volume data, calculates the ratio between the two, and saves the ratio as the basic playback volume data ratio. Specifically, the processing unit of the processing control module receives the preliminary ambient audio electrical signal and the preliminary external ambient sound electrical signal, analyzes and processes them to obtain corresponding preliminary ambient audio volume data and preliminary external ambient sound volume data, calculates the ratio between the two, and saves the ratio as the basic playback volume data ratio.

[0066] In summary, the earphone with an automatic volume adjustment function according to the present invention converts ambient audio signals into corresponding ambient audio electrical signals by setting a front cavity MIC and a front cavity audio conversion circuit, converts external real-time ambient sound signals into corresponding external real-time ambient sound electrical signals by a rear cavity MIC and a rear cavity audio conversion circuit, and analyzes and processes the ambient audio electrical signals and the external real-time ambient sound electrical signals through a processing and control module to obtain corresponding ambient audio volume data and external real-time ambient sound volume data. By combining the pre-stored basic playback volume data ratio, the required playback volume is obtained, and the playback volume is adjusted and controlled to be equal to the required playback volume, realizing the automatic volume adjustment of the earphone. It can avoid the relatively small earphone volume caused by the large external ambient sound volume, which affects the user's listening to audio content, ensure the audio playback quality, and can avoid the relatively large earphone volume caused by the small external ambient sound volume, which may cause hearing damage to the human ear, protecting the health of the user's both ears. The volume adjustment method of the present invention has the above functions to realize the automatic volume adjustment of the earphone and protect the health of the user's both ears.

[0067] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Those skilled in the art can make various equivalent changes and improvements on the basis of the above embodiments. Any equivalent changes or modifications made within the scope of the claims shall fall within the protection scope of the present invention.

Claims

1. An earphone with an automatic volume adjustment function, comprising an earphone body and a sound output part, characterized in that, The earphone main body includes: A front cavity MIC, close to the sound output part, for collecting the ambient audio signal of the sound output part; A front cavity audio conversion circuit, electrically connected to the front cavity MIC, for converting according to the ambient audio signal collected by the front cavity MIC to obtain a corresponding ambient audio electrical signal; A rear cavity MIC, arranged on the earphone main body, for collecting external real-time ambient sound signals; A rear cavity audio conversion circuit, electrically connected to the rear cavity MIC, for converting according to the external real-time ambient sound signal collected by the rear cavity MIC to obtain a corresponding external real-time ambient sound electrical signal; A processing and control module, electrically connected to the front cavity audio conversion circuit and the rear cavity audio conversion circuit respectively, for analyzing and processing the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, combining with the pre-stored basic playback volume data ratio, obtaining the required playback volume, and adjusting and controlling the playback volume to be equal to the required playback volume.

2. The earphone with an automatic volume adjustment function as described in claim 1, wherein, The processing and control module includes: A processing unit, electrically connected to the front cavity audio conversion circuit and the rear cavity audio conversion circuit respectively, for analyzing and processing the ambient audio electrical signal and the external real-time ambient sound electrical signal to obtain corresponding ambient audio volume data and external real-time ambient sound volume data, combining with the pre-stored basic playback volume data ratio, and analyzing to obtain the required playback volume; A main control unit, electrically connected to the processing unit, for mutual data transmission, and for adjusting and controlling the playback volume according to the required playback volume.

3. The earphone with an automatic volume adjustment function according to claim 2, characterized in that, A loudspeaker is arranged in the earphone main body, the loudspeaker is arranged facing the sound output part and is electrically connected to the main control unit, so that the main control unit controls the loudspeaker to play audio and adjusts and controls the playback volume of the loudspeaker according to the required playback volume analyzed by the processing unit.

4. The earphone with an automatic volume adjustment function according to claim 2, wherein The main control unit includes a Bluetooth unit for communicating with the Bluetooth module of the intelligent terminal.

5. The earphone with an automatic volume adjustment function according to claim 2, wherein A volume control button is arranged on the earphone main body, and the volume control button is electrically connected to the main control unit for manually adjusting the volume.

6. The earphone with an automatic volume adjustment function as claimed in claim 2, wherein The processing unit includes a storage unit for storing the preset basic playback volume and for storing the basic playback volume data ratio.

7. The earphone with an automatic volume adjustment function according to claim 1, characterized in that, The earphone main body further includes a battery, and the battery is electrically connected to the front cavity MIC, the front cavity audio conversion circuit, the rear cavity MIC, the rear cavity audio conversion circuit and the processing and control module respectively to provide a working power supply for them.

8. A volume adjustment method, characterized in that, It includes the following steps: The front cavity MIC collects the ambient audio signal of the sound output part; The front cavity audio conversion circuit converts according to the collected ambient audio signal to obtain a corresponding ambient audio electrical signal; The rear cavity MIC collects external real-time ambient sound signals; The rear cavity audio conversion circuit converts according to the collected external real-time ambient sound signal to obtain a corresponding external real-time ambient sound electrical signal; The processing control module analyzes and processes the environmental audio electrical signal and the external real-time environmental sound electrical signal to obtain corresponding environmental audio volume data and external real-time environmental sound volume data, combines the pre-stored basic playback volume data ratio, obtains the required playback volume, and adjusts and controls the playback volume to be equal to the required playback volume.

9. The volume adjustment method according to claim 8, wherein The steps for the processing control module to analyze and process the environmental audio electrical signal and the external real-time environmental sound electrical signal to obtain corresponding environmental audio volume data and external real-time environmental sound volume data, combine the pre-stored basic playback volume data ratio, obtain the required playback volume, and adjust and control the playback volume to be equal to the required playback volume specifically include: The processing control module analyzes and processes the environmental audio electrical signal and the external real-time environmental sound electrical signal to obtain corresponding environmental audio volume data and external real-time environmental sound volume data; Combining the pre-stored basic playback volume data ratio, determine whether the ratio between the environmental audio volume data and the external real-time environmental sound volume data is equal to the basic playback volume data ratio; When the ratio between the environmental audio volume data and the external real-time environmental sound volume data is not equal to the basic playback volume data ratio, obtain the corresponding required environmental audio volume data according to the external real-time environmental sound volume data and the basic playback volume data ratio, and analyze and obtain the corresponding required playback volume according to the required environmental audio volume data; Adjust and control the playback volume to be equal to the required playback volume.

10. The volume adjustment method according to claim 8, characterized in that, Before the step of the front cavity MIC collecting the environmental audio signal of the sound output part, it includes: The processing control module receives and stores the preset basic playback volume, and controls the sound output part to play the preset debugging audio according to the preset basic playback volume; The front cavity MIC collects the preliminary environmental audio signal of the sound output part; The front cavity audio conversion circuit converts according to the collected preliminary environmental audio signal to obtain the corresponding preliminary environmental audio electrical signal; The rear cavity MIC collects the preliminary external environmental sound signal; The rear cavity audio conversion circuit converts according to the collected preliminary external environmental sound signal to obtain the corresponding preliminary external environmental sound electrical signal; The processing control module receives the preliminary environmental audio electrical signal and the preliminary external environmental sound electrical signal, analyzes and processes them to obtain the corresponding preliminary environmental audio volume data and preliminary external environmental sound volume data, calculates the ratio between the two, and saves this ratio as the basic playback volume data ratio.

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