CN106303789A - A kind of way of recording, earphone and mobile terminal - Google Patents

Abstract

The invention provides a kind of way of recording, earphone and mobile terminal, the way of recording being applied to earphone includes: obtain the L channel microphone signal that the L channel mike of earphone gathers；Obtain the R channel microphone signal that the R channel mike of earphone gathers；Described L channel microphone signal and described R channel microphone signal are sent to the mobile terminal communicated to connect with described earphone, make described mobile terminal that described L channel microphone signal and described R channel microphone signal are carried out audio mixing synthesis process, obtain stereophonic recording file.Therefore, the solution of the present invention, it is possible to record to obtain the loudness difference of same source of sound and phase contrast, it is thus achieved that there is the audio files of stereophonic effect, the problem solving real scene when the audio files that prior art records cannot restore recording.

Description

A recording method, earphone and mobile terminal

technical field

The invention relates to the field of electronic technology, in particular to a recording method, an earphone and a mobile terminal.

Background technique

At present, only one microphone (the local microphone or the earphone microphone) is used for recording when the mobile terminals on the market are recording, so the recorded audio sources are monophonic. It is the same, it is impossible to restore the real scene during the recording, so that the user cannot judge which direction the sound is coming from.

For example, when a user is recording a conference, the user cannot tell whether the speaker is on the left or the right of the user, but can only distinguish who is speaking through the tone; in addition, when the mobile terminal is placed in front of the user for recording, the person behind the user When a person speaks, their voice will be blocked by the user's body, resulting in a smaller recorded voice.

Contents of the invention

Embodiments of the present invention provide a recording method, an earphone and a mobile terminal to solve the problem that the recorded sound files in the prior art cannot restore the real scene during the recording.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

According to an aspect of an embodiment of the present invention, a recording method is provided, which is applied to an earphone, and the earphone is provided with a left channel microphone and a right channel microphone, and the method includes:

Obtain the left channel microphone signal collected by the left channel microphone of the earphone;

Obtain the right channel microphone signal collected by the right channel microphone of the earphone;

sending the left channel microphone signal and the right channel microphone signal to a mobile terminal communicatively connected to the earphone, so that the mobile terminal performs the left channel microphone signal and the right channel microphone signal Audio mixing and synthesis processing to obtain stereo recording files.

According to another aspect of the embodiments of the present invention, there is also provided a recording method applied to a mobile terminal, the method comprising:

Receive the left channel microphone signal and the right channel microphone signal sent by the earphone connected to the mobile terminal;

The left channel microphone signal and the right channel microphone signal are mixed and synthesized to obtain a stereo recording file.

According to another aspect of the embodiments of the present invention, there is also provided an earphone, the earphone is provided with a left-channel microphone and a right-channel microphone, and the earphone also includes:

The first signal acquisition module is used to acquire the left channel microphone signal collected by the left channel microphone of the earphone;

The second signal acquisition module is used to acquire the right channel microphone signal collected by the right channel microphone of the earphone;

A signal sending module, configured to send the left channel microphone signal acquired by the first signal acquisition module and the right channel microphone signal acquired by the second signal acquisition module to a mobile phone connected to the earphone in communication terminal, so that the mobile terminal performs audio mixing and synthesis processing on the left-channel microphone signal and the right-channel microphone signal to obtain a stereo recording file.

According to another aspect of the embodiments of the present invention, a mobile terminal is also provided, including:

The signal receiving module is used to receive the left channel microphone signal and the right channel microphone signal sent by the earphone connected to the mobile terminal;

The signal mixing module is configured to mix and synthesize the left channel microphone signal and the right channel microphone signal received by the signal receiving module to obtain a stereo recording file.

According to another aspect of the embodiments of the present invention, a headset is also provided, including:

A left earphone, the left earphone is provided with a left channel microphone;

A right earphone, the right earphone is provided with a right channel microphone;

Sending the left channel microphone signal collected by the left channel microphone and the right channel microphone signal collected by the right channel microphone to a first communication circuit of a mobile terminal, the first communication circuit communicates with the mobile terminal communication connection, and the first communication circuit is electrically connected to the left channel microphone and the right channel microphone respectively.

According to another aspect of the embodiments of the present invention, a mobile terminal is also provided, including:

A second communication circuit that receives a left-channel microphone signal and a right-channel microphone signal sent by an earphone, and the second communication circuit is communicatively connected to the earphone;

Mixing and synthesizing the left channel microphone signal and the right channel microphone signal to obtain a signal mixing circuit of a stereo recording file, and the signal mixing circuit is electrically connected to the second communication circuit.

The beneficial effects of the embodiments of the present invention are:

In the embodiment of the present invention, the left channel microphone signal collected by the left channel microphone of the earphone and the right channel microphone signal collected by the right channel microphone are obtained, and the left channel microphone signal and the right channel microphone signal are collected by the mobile terminal. The signal is mixed and synthesized to generate a stereo recording file, so that when the stereo recording file is played back, the real scene at the time of recording can be restored and the user's listening experience can be improved. Therefore, the embodiments of the present invention can obtain sound files with stereo effects, so that users can experience an immersive auditory experience, and solve the problem that the sound files recorded in the prior art cannot restore the real scene during recording.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

Fig. 1 represents the flowchart of the recording method of the first embodiment of the present invention;

Fig. 2 represents the flowchart of the recording method of the second embodiment of the present invention;

Fig. 3 represents one of the structural block diagrams of the earphone of the third embodiment of the present invention;

Fig. 4 shows the second structural block diagram of the earphone of the third embodiment of the present invention;

Fig. 5 shows the structural block diagram of the mobile terminal of the 4th embodiment of the present invention;

Fig. 6 shows the circuit connection diagram of the earphone of the fifth embodiment of the present invention;

FIG. 7 shows a schematic diagram of a circuit connection of a mobile terminal according to a sixth embodiment of the present invention;

Fig. 8 shows a schematic diagram of circuit connection when the earphone according to the fifth embodiment of the present invention is used in conjunction with the mobile terminal according to the sixth embodiment;

FIG. 9 shows a structural block diagram of a mobile terminal according to an eighth embodiment of the present invention;

FIG. 10 shows a structural block diagram of a mobile terminal according to a ninth embodiment of the present invention;

Fig. 11 represents the waveform diagram of the left channel microphone signal;

Fig. 12 represents the waveform diagram of the right channel microphone signal;

Fig. 13 shows a waveform diagram of a stereo recording file.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

first embodiment

An embodiment of the present invention provides a recording method, which is applied to an earphone, and the earphone is provided with a left-channel microphone and a right-channel microphone.

As shown in Figure 1, the recording method of the embodiment of the present invention includes:

Step 101: Obtain a left-channel microphone signal collected by the left-channel microphone of the earphone.

The earphone used in the recording method of the embodiment of the present invention is used in conjunction with a mobile terminal, wherein the mobile terminal may specifically be a mobile phone, a tablet computer, or the like. After the earphone establishes a communication connection with the mobile terminal, the mobile terminal controls the left channel microphone and the right channel microphone of the earphone to start recording, that is, the left channel microphone is controlled to collect the signal of the left channel microphone, and the right channel microphone is controlled to collect the right sound. channel microphone signal.

Step 102: Obtain a right-channel microphone signal collected by the right-channel microphone of the earphone.

Among them, people hear stereo because the sound source has a loudness difference relative to the two ears (the sound received by the ear closer to the ear is louder) and a phase difference (that is, a time difference). The sound waves reaching the two ears from the same sound source are in different vibration states, coupled with the reflection and diffraction of the head, shoulders and auricles, the human brain will judge the direction and distance of the sound source from this information (mainly in the horizontal direction) , people are relatively insensitive to differences in the vertical position of the sound source). However, in the embodiment of the present invention, the left and right ears of a person are simulated through the left channel microphone and the right channel microphone on the earphone, so as to realize the recording of the loudness difference and phase difference of the same sound source.

Step 103: Send the left-channel microphone signal and the right-channel microphone signal to a mobile terminal communicatively connected to the earphone, so that the mobile terminal transmits the left-channel microphone signal and the right-channel microphone signal The microphone signal is mixed and synthesized to obtain a stereo recording file.

Wherein, the communication connection refers to the connection mode that can carry out data and signal transmission, including wireless connection and wire harness connection, then the microphone signal of the left channel and the microphone signal of the right channel can be transmitted by wireless transmission or circuit sent to the mobile terminal.

When the headset acquires the left-channel microphone signal collected by the left-channel microphone and the right-channel microphone signal collected by the right-channel microphone, the headset needs to transmit the left-channel microphone signal and the right-channel microphone signal to the mobile terminal for mixing Synthetic processing in order to obtain recording files with stereo effects.

Wherein, since earphones are divided into analog earphones and digital earphones, the microphones provided on the analog earphones are analog microphones, and the microphones provided on the digital earphones are digital microphones. Therefore, when the left channel microphone and the right channel microphone are both analog microphones, the left channel microphone signal and the right channel microphone signal obtained by the earphone are both analog signals; When using a digital microphone, the left channel microphone signal and the right channel microphone signal obtained by the earphone are both digital signals.

Wherein, when the left channel microphone and the right channel microphone are both analog microphones, preferably, step 103 includes: converting the left channel microphone signal into a first digital signal; converting the microphone signal into a second digital signal; sending the first digital signal and the second digital signal to a mobile terminal communicatively connected to the earphone.

When both the left channel microphone and the right channel microphone are digital microphones, the left channel microphone signal is a first digital signal, and the right channel microphone signal is a second digital signal; preferably, Step 103 includes: directly sending the first digital signal and the second digital signal to a mobile terminal communicatively connected to the earphone.

That is, in the embodiment of the present invention, when the microphone signal sent by the earphone to the mobile terminal is required to be a digital signal, then when the microphone signal collected by the microphone on the earphone is an analog signal, the analog signal needs to be converted into a digital signal before it can be sent to the mobile terminal. Mobile terminal; when the microphone signal collected by the microphone on the headset is a digital signal, the collected digital microphone signal can be directly sent to the mobile terminal, so that the mobile terminal can directly perform mixing and synthesis processing on the digital microphone signal to generate a stereo recording file .

However, if the earphone directly sends the analog microphone signal to the mobile terminal, the mobile terminal needs to have an analog-to-digital conversion function, so that the digital signal obtained after the analog-to-digital conversion can be further mixed and synthesized to generate a stereo recording file.

As can be seen from the above, when the left and right channel microphones on the earphone are both analog microphones, the earphone can first convert the obtained analog left and right channel microphone signals into digital signals, and then send to the mobile terminal; or directly send the acquired analog left-channel microphone signal and right-channel microphone signal to the mobile terminal, and the mobile terminal performs analog-to-digital conversion.

Wherein, which side of the earphone and the mobile terminal performs the analog-to-digital conversion process of the left-channel microphone signal and the right-channel microphone signal depends on the specific communication connection mode between the earphone and the mobile terminal. For example, when the earphone is connected to the mobile terminal through Bluetooth wireless communication, since the digital signals are transmitted between the Bluetooth modules, the analog-to-digital conversion process of the left channel microphone signal and the right channel microphone signal is performed by the earphone side. implement.

In summary, in the embodiment of the present invention, two-channel recording is realized through the left-channel microphone and the right-channel microphone of the earphone, and the recorded left-channel microphone signal and right-channel microphone signal are sent to the mobile terminal, so that The mobile terminal performs mixing and synthesis processing to generate stereo recording files, and then when the generated stereo recording files are played back, the real scene during recording can be restored, allowing users to clearly perceive the direction of the sound, not just the loudness The size improves the diversity and richness of recordings, and enhances the user's listening experience. In addition, with the popularization of virtual reality (VR, Virtual Reality) technology, embodiments of the present invention can also improve user experience in VR recording and video recording.

second embodiment

Embodiments of the present invention provide a recording method, which is applied to a mobile terminal, and the mobile terminal may specifically be a mobile phone, a tablet computer, and the like.

As shown in Figure 2, the recording method of the embodiment of the present invention includes:

Step 201: Receive a left-channel microphone signal and a right-channel microphone signal sent by an earphone communicatively connected to the mobile terminal.

Wherein, the communication connection refers to the connection mode that can carry out data and signal transmission, including wireless connection and wire harness connection, then the left channel microphone signal and the right channel microphone signal can be received by wireless or circuit transmission Received from the earphone side.

The mobile terminal to which the embodiment of the present invention is applied needs to be used in cooperation with an earphone provided with a left-channel microphone and a right-channel microphone. Wherein, when the user operates the mobile terminal so that the mobile terminal issues an instruction to start recording, the earphone connected in communication with the mobile terminal starts to collect the signal of the left-channel microphone through the left-channel microphone, and collects the signal of the right-channel microphone through the right-channel microphone. signal, so that the mobile terminal can receive the left channel microphone signal and the right channel microphone signal sent by the earphone through the communication connection with the earphone.

Step 202: Mix and synthesize the left-channel microphone signal and the right-channel microphone signal to obtain a stereo recording file.

Wherein, if the left channel microphone signal received by the mobile terminal is the left sound source _SL , and the right channel microphone signal received is the right sound source _SR , then the mobile terminal performs mixing and synthesis processing to combine the left sound source _SL and the right sound source The sound source S _R is respectively placed on the left and right channels of the stereo sound source, thereby obtaining the stereo recording file S _L+R . Wherein, as shown in Figure 11, it is the waveform diagram of the left sound source _SL , and Figure 12 is the waveform diagram of the right sound source _SR , then the waveform diagram of the stereo file _SL+R synthesized by the left sound source _SL and the right sound source S _R , as shown in Figure 13.

In addition, when the generated stereo recording file is being played back, the direction and distance of the sound can be judged even if the user closes his eyes. Therefore, the recording method in the embodiment of the present invention can perfectly restore the 360-degree sound field effect, Simulate the state of the human ear when hearing the sound as realistically as possible, allowing users to clearly perceive the direction of the sound, not just the loudness, which improves the diversity and richness of recordings and enhances the user's listening experience. In addition, with the popularity of virtual reality (VR) technology, the embodiments of the present invention can also improve user experience in VR recording and video recording.

third embodiment

An embodiment of the present invention provides an earphone, the earphone is provided with a left channel microphone and a right channel microphone, as shown in Figure 3, the earphone 300 also includes:

The first signal acquisition module 301 is configured to acquire the left channel microphone signal collected by the left channel microphone of the earphone;

The second signal acquisition module 302 is configured to acquire the right channel microphone signal collected by the right channel microphone of the earphone;

A signal sending module 303, configured to send the left channel microphone signal obtained by the first signal obtaining module 301 and the right channel microphone signal obtained by the second signal obtaining module 302 to communicate with the earphone connected to the mobile terminal, so that the mobile terminal performs mixing and synthesis processing on the left channel microphone signal and the right channel microphone signal to obtain a stereo recording file.

Preferably, when the left channel microphone and the right channel microphone are both analog microphones, as shown in FIG. 4, the signal sending module 303 includes:

A first conversion unit 3031, configured to convert the left channel microphone signal into a first digital signal;

A second conversion unit 3032, configured to convert the right channel microphone signal into a second digital signal;

The first signal sending unit 3033 is configured to send the first digital signal and the second digital signal to a mobile terminal communicatively connected to the earphone.

The earphone of the embodiment of the present invention acquires the left channel microphone signal collected by the left channel microphone of the earphone through the first signal acquisition module 301, and acquires the right channel microphone signal collected by the right channel microphone through the second signal acquisition module 302, and then Send the left channel microphone signal and the right channel microphone signal to the mobile terminal communicatively connected to the headset through the signal sending module 303, so that the mobile terminal can perform mixing and synthesis processing on the left channel microphone signal and the right channel microphone signal , so as to generate a stereo recording file, and then when the generated stereo recording file is played back through the earphone, the real scene during the recording can be restored, thereby improving the user's listening experience.

Fourth embodiment

An embodiment of the present invention provides a mobile terminal. As shown in FIG. 5, the mobile terminal 500 includes:

The signal receiving module 501 is used to receive the left channel microphone signal and the right channel microphone signal sent by the earphone connected to the mobile terminal in communication;

The signal mixing module 502 is configured to mix and synthesize the left channel microphone signal and the right channel microphone signal received by the signal receiving module 501 to obtain a stereo recording file.

The mobile terminal in the embodiment of the present invention can mix and synthesize the left-channel microphone signal and the right-channel microphone signal collected by the earphone, thereby generating a stereo recording file, so that the stereo recording file can be restored when it is played back. The real scene during recording improves the user's listening experience. Therefore, the mobile terminal in the embodiment of the present invention can obtain sound files with stereo effects, so that people can experience an immersive auditory experience, and solve the problem that the sound files recorded in the prior art cannot restore the real scene during recording .

fifth embodiment

An embodiment of the present invention provides an earphone. As shown in FIG. 6, the earphone 600 includes:

A left earphone, the left earphone is provided with a left channel microphone 601;

A right earphone, the right earphone is provided with a right channel microphone 602;

Sending the left channel microphone signal collected by the left channel microphone 601 and the right channel microphone signal collected by the right channel microphone 602 to a first communication circuit of a mobile terminal, the first communication circuit communicates with the The mobile terminal is connected in communication, and the first communication circuit is electrically connected to the left channel microphone 601 and the right channel microphone 602 respectively.

Among them, people hear stereo because the sound source has a loudness difference relative to the two ears (the sound received by the ear closer to the ear is louder) and a phase difference (that is, a time difference). The sound waves reaching the two ears from the same sound source are in different vibration states, coupled with the reflection and diffraction of the head, shoulders and auricles, the human brain will judge the direction and distance of the sound source from this information (mainly in the horizontal direction) , people are relatively insensitive to differences in the vertical position of the sound source).

In the embodiment of the present invention, a microphone is respectively added on the left earphone and the right earphone, so that when recording, two microphones can be utilized to simulate the left and right ears of a person, thereby recording the loudness difference and phase difference of the same sound source. Realize binaural recording.

In addition, the earphone of the embodiment of the present invention is used in conjunction with a mobile terminal provided with a signal mixing circuit for mixing the left channel microphone signal and the right channel microphone signal into a stereo recording file. Wherein, when recording, the left channel microphone and the right channel microphone of the earphone perform binaural recording, so that through the communication connection with the mobile terminal, the collected left channel microphone signal and right channel microphone signal are sent to For the mobile terminal, the mobile terminal can mix it into a stereo recording file, so that when the generated stereo recording file is played back, the real scene during the recording can be restored, and the user's listening experience can be improved.

Wherein, preferably, the first communication circuit is the first Bluetooth module 605 that establishes a wireless communication connection with the second Bluetooth module on the mobile terminal. That is, the Bluetooth technology is used to realize the wireless communication connection between the earphone of the embodiment of the present invention and the mobile terminal used with it, which avoids the troubles caused by the wire harness earphone to the user, and greatly facilitates the use of the user. Wherein, further, the Bluetooth Audio Distribution Profile (A2DP) protocol may be used for communication.

It can be seen that the earphone in the embodiment of the present invention may specifically be a bluetooth earphone, that is, a left-channel microphone and a right-channel microphone may also be provided on the bluetooth earphone to realize two-channel recording.

In addition, earphones are divided into analog earphones and digital earphones, and the microphone provided on the analog earphone is an analog microphone, and the microphone provided on the digital earphone is a digital microphone.

Wherein, when the left channel microphone and the right channel microphone are both analog microphones, the earphone further includes: a first analog-to-digital converter for converting the left channel microphone signal into a first digital signal, The first analog-to-digital converter is electrically connected to the left channel microphone 601 and the first bluetooth module 605 respectively; the second analog-to-digital converter that converts the right channel microphone signal into a second digital signal , the second analog-to-digital converter is electrically connected to the right channel microphone 602 and the first Bluetooth module 605 respectively.

That is, in the embodiment of the present invention, when the left channel microphone and the right channel microphone are both analog microphones, the left channel microphone signal and the right channel microphone signal collected by the earphone are all analog signals. The digital signal is transmitted between the first bluetooth module 605 and the second bluetooth module through the wireless communication connection between the left channel microphone signal and the right channel microphone signal to the mobile terminal, it is also necessary to Analog-to-digital conversion, therefore, a corresponding analog-to-digital converter needs to be set on the headset.

Wherein, preferably, when the headset and the mobile terminal realize a wireless communication connection through Bluetooth technology (that is, the first communication circuit is the first Bluetooth module 605), the first analog-to-digital converter and the second analog-to-digital converter It is the analog-to-digital converter inside the first bluetooth module 605 on the headset, so there is no need to add two additional analog-to-digital converters, further simplifying the circuit structure on the headset and saving costs.

In addition, a left channel speaker 603 and a right channel speaker 604 for playing sound files are also provided on the earphone, as shown in FIG. 6 . Wherein, the left channel speaker 603 is arranged on the left earphone, the right channel speaker 604 is arranged on the right earphone, and both the left channel speaker 603 and the right channel speaker 604 are electrically connected with the first Bluetooth module 605, so that the mobile The terminal can play back the generated stereo recording file to the left channel speaker 603 and the right channel speaker 604 through the wireless communication connection between the first Bluetooth module 605 and the second Bluetooth module.

Preferably, the left channel microphone 601 is located on the side of the left earphone away from the earplug, and the right channel microphone 602 is located on the side of the right earphone away from the earplug, so that the left channel The microphone 601 and the right channel microphone 602 can collect clearer sound signals, thereby improving the final recording effect and further improving the user's listening experience.

To sum up, the earphone of the embodiment of the present invention is used in conjunction with a mobile terminal provided with a signal mixing circuit for mixing the left channel microphone signal and the right channel microphone signal into a stereo recording file, and can pass the left channel microphone and the right channel microphone signal. The right channel microphone realizes two-channel recording, and the left channel microphone signal and the right channel microphone signal are mixed into a stereo recording file through the signal processing circuit of the mobile terminal, and then when the generated stereo recording file is played back, it can Restore the real scene when recording and improve the user's listening experience.

Sixth embodiment

An embodiment of the present invention provides a mobile terminal. As shown in FIG. 7, the mobile terminal 700 includes:

A second communication circuit that receives a left-channel microphone signal and a right-channel microphone signal sent by an earphone, and the second communication circuit is communicatively connected to the earphone;

The left channel microphone signal and the right channel microphone signal are mixed and synthesized to obtain a signal mixing circuit 702 of a stereo recording file, and the signal mixing circuit 702 is electrically connected to the second communication circuit.

The mobile terminal in the embodiment of the present invention is used in conjunction with an earphone provided with a left-channel microphone and a right-channel microphone. Specifically, when using this type of earphone to record with the mobile terminal of the embodiment of the present invention, after the earphone is connected to the mobile terminal for communication, when the recording starts, the microphone signal of the left channel is collected through the microphone of the left channel, and the microphone signal of the right channel is collected through the microphone of the right channel. The microphone collects the microphone signal of the right channel, and makes the mobile terminal receive the microphone signal of the left channel and the microphone signal of the right channel sent by the earphone through the communication connection with the earphone, and then through the signal mixing circuit 702, the signal of the left channel microphone and the right channel The channel microphone signal is mixed and processed into a stereo recording file, and then when the generated stereo recording file is played back, the real scene during recording can be restored, which improves the user's listening experience.

Preferably, the second communication circuit is a second Bluetooth module 701 that establishes a wireless communication connection with the first Bluetooth module on the earphone. That is, the Bluetooth technology is used to realize the wireless communication connection between the mobile terminal in the embodiment of the present invention and the headset used in conjunction with it, which avoids the troubles caused by the wire harness headset to the user, and greatly facilitates the use of the user. Wherein, further, the Bluetooth Audio Distribution Profile (A2DP) protocol may be used for communication.

In addition, since the signals transmitted between the Bluetooth modules are digital signals, when the Bluetooth technology is used to establish a wireless communication connection between the mobile terminal and the headset in the embodiment of the present invention, a device capable of receiving digital signals needs to be installed on the mobile terminal. Wherein, since the central processing unit CPU on the mobile terminal can directly process the digital signal, the central processing unit CPU of the mobile terminal can be directly used to receive the wireless communication connection between the first Bluetooth module and the second Bluetooth module 701. The transmitted left channel microphone signal and the right channel microphone signal.

Therefore, preferably, the signal mixing circuit 702 includes: a central processing unit CPU for obtaining the left channel microphone signal and the right channel microphone signal, and the central processing unit CPU and the second bluetooth module 701 Electrical connection; the left channel microphone signal and the right channel microphone signal are mixed and synthesized to obtain the audio codec 7021 of the stereo recording file, and the audio codec 7021 is connected with the central processing unit CPU electrical connection.

That is, the mobile terminal in the embodiment of the present invention receives the left channel microphone signal and the right channel microphone signal sent by the earphone through the central processing unit CPU (specifically, the left channel microphone signal can be received through the input and output data interface (GPIO) of the central processing unit CPU). channel microphone signal and right channel microphone signal), and then handed over to the audio codec 7021 for mixing and synthesis processing, thereby generating a stereo recording file. Wherein, the audio codec 7021 can also return the generated stereo recording file to the central processing unit CPU through the connection with the central processing unit CPU, so that the central processing unit CPU can store or otherwise process the stereo recording file.

Wherein, the playback circuit of the sound file is also provided on the mobile terminal. As shown in FIG. The module 701 is electrically connected. When the user operates the mobile terminal to make the central processing unit CPU issue a recording file playback command, the central processing unit CPU can transmit the stereo recording file to the digital-to-analog converter DAC, so that the digital-to-analog converter DAC converts the converted analog signal Through the wireless communication connection between the second bluetooth module 701 and the first bluetooth module on the earphone, it is sent to the earphone, and then transmitted to the left channel speaker and the right channel speaker of the earphone, so that the user can listen to the Stereo sound is heard from the channel speaker and the right channel speaker.

In summary, the mobile terminal according to the embodiment of the present invention is used in conjunction with an earphone provided with a left-channel microphone and a right-channel microphone, and can receive the left-channel microphone signal and the right-channel microphone signal collected by the earphone, and can It is mixed into a stereo recording file, and then when the generated stereo recording file is played back, the real scene at the time of recording can be restored, and the user's listening experience can be improved.

Seventh embodiment

FIG. 8 is a schematic diagram of a circuit connection when the earphone of the fifth embodiment is used in conjunction with the mobile terminal of the sixth embodiment. Wherein, the headset and the mobile terminal perform signal transmission through the wireless communication connection between the first Bluetooth module 805 and the second Bluetooth module 806 . Wherein, when the recording starts, the left channel microphone 801 on the earphone collects the signal of the left channel microphone, and the right channel microphone 802 collects the signal of the right channel microphone, thereby passing through the first Bluetooth module 805 and the second Bluetooth module 806 The wireless communication connection between them transmits the left channel microphone signal and the right channel microphone signal to the mobile terminal.

The mobile terminal receives the left channel microphone signal and the right channel microphone signal sent by the earphone through the central processing unit CPU, and then transmits them to the audio codec 807 for mixing and synthesis processing to generate a stereo recording file, and then returns the generated stereo recording file To the central processing unit CPU for storage or other processing.

When recording and playing back, the central processing unit CPU transmits the generated stereo recording file to the digital-to-analog converter DAC, converts it into an analog signal, and then passes through the wireless connection between the second bluetooth module 806 and the first bluetooth module 805. Communication connection, the converted analog signal is sent to the earphone, and then played back to the left channel speaker 803 and the right channel speaker 804 of the earphone.

To sum up, by adding a microphone to the left earphone and the right earphone respectively, two-channel recording can be realized, and then the signal mixing circuit of the mobile terminal can synthesize the microphone signals of the left and right channels into a stereo recording file. Realize stereo recording. Among them, two microphones are used to simulate the left and right ears of a human being during recording, and the loudness difference and phase difference of the same sound source can be recorded, thereby perfectly restoring the 360-degree sound field effect and simulating the human ear listening as realistically as possible. When it is in the state of sound, and when the recorded sound source is played back with headphones, the user can judge the direction and distance of the sound even if they close their eyes.

Eighth embodiment

Fig. 9 is a structural block diagram of a mobile terminal according to another embodiment of the present invention. Specifically, the mobile terminal 900 in FIG. 9 may be a mobile phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), or a vehicle-mounted computer.

Mobile terminal 900 in FIG.

Wherein, the input unit 930 can be used to receive number or character information input by the user, and generate signal input related to the user setting and function control of the mobile terminal 900 . Specifically, in the embodiment of the present invention, the input unit 930 may include a touch panel 931 . The touch panel 931, also referred to as a touch screen, can collect user's touch operations on or near it (such as the user's operation on the touch panel 931 using any suitable object or accessory such as a finger, a stylus), and The specified program drives the corresponding connected device.

Optionally, the touch panel 931 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the to the processor 960, and can receive and execute commands sent by the processor 960. In addition, the touch panel 931 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 931, the input unit 930 may also include other input devices 932, which may include but not limited to physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, etc. one or more of.

Wherein, the display unit 940 can be used to display information input by the user or provided to the user and various menu interfaces of the mobile terminal 900 . The display unit 940 may include a display panel 941. Optionally, the display panel 941 may be configured in the form of an LCD or an organic light-emitting diode (Organic Light-Emitting Diode, OLED).

It should be noted that the touch panel 931 can cover the display panel 941 to form a touch display screen. When the touch display screen detects a touch operation on or near it, it is sent to the processor 960 to determine the type of the touch event, and then the processor The 960 provides corresponding visual output on the touch display screen according to the type of the touch event.

The touch display screen includes an application program interface display area and a common control display area. The arrangement of the display area of the application program interface and the display area of the commonly used controls is not limited, and may be an arrangement in which the two display areas can be distinguished, such as vertical arrangement, left-right arrangement, and the like. The application program interface display area can be used to display the interface of the application program. Each interface may include at least one interface element such as an icon of an application program and/or a widget desktop control. The application program interface display area can also be an empty interface without any content. The commonly used control display area is used to display controls with a high usage rate, for example, application icons such as setting buttons, interface numbers, scroll bars, and phonebook icons.

Wherein the processor 960 is the control center of the mobile terminal 900, utilizes various interfaces and lines to connect various parts of the whole mobile phone, and runs or executes the software programs and/or modules stored in the first memory 921, and calls the software programs and/or modules stored in the second memory 921. The data in the memory 922 executes various functions of the mobile terminal 900 and processes data, so as to monitor the mobile terminal 900 as a whole. Optionally, the processor 960 may include one or more processing units.

In the embodiment of the present invention, the processor 960 receives the left channel microphone signal and the right channel microphone signal sent by the earphone connected to the mobile terminal 900 in communication, and converts the left channel microphone signal and the right channel microphone signal Perform audio mixing and synthesis processing to obtain stereo recording files.

The mobile terminal 900 can implement various processes implemented by the mobile terminal in the foregoing embodiments, and to avoid repetition, details are not repeated here.

The mobile terminal 900 of the embodiment of the present invention can obtain the left channel microphone signal and the right channel microphone signal sent by the earphone, and perform mixing and synthesis processing on them to generate a stereo recording file, so that the stereo recording file can be played back , can restore the real scene when recording, and improve the user's listening experience. Therefore, the embodiment of the present invention can obtain a sound file with a stereo effect, so that the user can judge the direction and distance of the sound even with his eyes closed, which solves the problem that the sound file recorded in the prior art cannot restore the real sound of the recording. scene problem.

Ninth embodiment

FIG. 10 is a block diagram of a mobile terminal according to another embodiment of the present invention. Specifically, the mobile terminal 1000 in FIG. 10 may be a mobile phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), or a vehicle-mounted computer.

The mobile terminal 1000 shown in FIG. 10 includes: at least one processor 1001 , a memory 1002 , at least one network interface 1004 , and other user interfaces 1003 . Various components in the mobile terminal 1000 are coupled together through the bus system 1005 . It can be understood that the bus system 1005 is used to realize connection and communication between these components. In addition to the data bus, the bus system 1005 also includes a power bus, a control bus and a status signal bus. However, the various buses are labeled as bus system 1005 in FIG. 10 for clarity of illustration.

Wherein, the user interface 1003 may include a display, a keyboard or a pointing device. For example, mouse, trackball (trackball), touch pad or touch screen, etc.

It can be understood that the memory 1002 in this embodiment of the present invention may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double DataRate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM). The memory 1002 of the systems and methods described in embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, the memory 1002 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: an operating system 10021 and an application program 10022 .

Among them, the operating system 10021 includes various system programs, such as framework layer, core library layer, driver layer, etc., for realizing various basic services and processing tasks based on hardware. The application program 10022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., and is used to realize various application services. The program for realizing the method of the embodiment of the present invention may be included in the application program 10022 .

In the embodiment of the present invention, by calling the program or instructions stored in the memory 1002, the processor 1001 receives the left channel microphone signal and the right channel microphone signal sent by the earphone connected to the mobile terminal in communication, and transmits the left channel microphone signal The microphone signal and the right channel microphone signal are mixed and synthesized to obtain a stereo recording file.

The methods disclosed in the foregoing embodiments of the present invention may be applied to the processor 1001 or implemented by the processor 1001 . The processor 1001 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1001 or instructions in the form of software. The aforementioned processor 1001 may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the methods disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002, and completes the steps of the above method in combination with its hardware.

It can be understood that the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic units for performing the functions described in this application or a combination thereof.

For software implementation, the techniques described in the embodiments of the present invention may be implemented through modules (such as procedures, functions, etc.) that execute the functions described in the embodiments of the present invention. Software codes can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

The mobile terminal 1000 can implement various processes implemented by the mobile terminal in the foregoing embodiments, and to avoid repetition, details are not repeated here.

The mobile terminal 1000 of the embodiment of the present invention can obtain the left channel microphone signal and the right channel microphone signal sent by the earphone, and perform mixing and synthesis processing on them to generate a stereo recording file, so that the stereo recording file can be played back , can restore the real scene when recording, and improve the user's listening experience. Therefore, the embodiment of the present invention can obtain a sound file with a stereo effect, so that the user can judge the direction and distance of the sound even with his eyes closed, which solves the problem that the sound file recorded in the prior art cannot restore the real sound of the recording. scene problem.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed in the embodiments of the present invention can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to realize the effect of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (13)

1. A method for recording, applied to earphones, characterized in that, the earphones are provided with a left channel microphone and a right channel microphone, and the method comprises: Obtain the left channel microphone signal collected by the left channel microphone of the earphone; Obtain the right channel microphone signal collected by the right channel microphone of the earphone; sending the left channel microphone signal and the right channel microphone signal to a mobile terminal communicatively connected to the earphone, so that the mobile terminal performs the left channel microphone signal and the right channel microphone signal Audio mixing and synthesis processing to obtain stereo recording files. 2. The method according to claim 1, wherein when both the left channel microphone and the right channel microphone are analog microphones, the left channel microphone signal and the right channel microphone signal are A microphone signal is sent to a mobile terminal connected to the earphone in communication, including: converting the left channel microphone signal into a first digital signal; converting the right channel microphone signal into a second digital signal; sending the first digital signal and the second digital signal to a mobile terminal communicatively connected to the headset. 3. A recording method applied to a mobile terminal, characterized in that the method comprises: Receive the left channel microphone signal and the right channel microphone signal sent by the earphone connected to the mobile terminal; The left channel microphone signal and the right channel microphone signal are mixed and synthesized to obtain a stereo recording file. 4. An earphone, characterized in that, the earphone is provided with a left channel microphone and a right channel microphone, and the earphone also includes: The first signal acquisition module is used to acquire the left channel microphone signal collected by the left channel microphone of the earphone; The second signal acquisition module is used to acquire the right channel microphone signal collected by the right channel microphone of the earphone; A signal sending module, configured to send the left channel microphone signal acquired by the first signal acquisition module and the right channel microphone signal acquired by the second signal acquisition module to a mobile phone connected to the earphone in communication terminal, so that the mobile terminal performs audio mixing and synthesis processing on the left-channel microphone signal and the right-channel microphone signal to obtain a stereo recording file. 5. The earphone according to claim 4, wherein when both the left channel microphone and the right channel microphone are analog microphones, the signal sending module comprises: a first converting unit, configured to convert the left channel microphone signal into a first digital signal; a second converting unit, configured to convert the right channel microphone signal into a second digital signal; A first signal sending unit, configured to send the first digital signal and the second digital signal to a mobile terminal communicatively connected to the earphone. 6. A mobile terminal, characterized in that, comprising: The signal receiving module is used to receive the left channel microphone signal and the right channel microphone signal sent by the earphone connected to the mobile terminal; The signal mixing module is configured to mix and synthesize the left channel microphone signal and the right channel microphone signal received by the signal receiving module to obtain a stereo recording file. 7. An earphone, characterized in that, comprising: A left earphone, the left earphone is provided with a left channel microphone; A right earphone, the right earphone is provided with a right channel microphone; Sending the left channel microphone signal collected by the left channel microphone and the right channel microphone signal collected by the right channel microphone to a first communication circuit of a mobile terminal, the first communication circuit communicates with the mobile terminal communication connection, and the first communication circuit is electrically connected to the left channel microphone and the right channel microphone respectively. 8. The earphone according to claim 7, wherein the first communication circuit is a first Bluetooth module that establishes a wireless communication connection with a second Bluetooth module on the mobile terminal. 9. The earphone according to claim 8, wherein when both the left channel microphone and the right channel microphone are analog microphones, the earphone further comprises: A first analog-to-digital converter that converts the left-channel microphone signal into a first digital signal, and the first analog-to-digital converter is electrically connected to the left-channel microphone and the first Bluetooth module; A second analog-to-digital converter that converts the right-channel microphone signal into a second digital signal, and the second analog-to-digital converter is electrically connected to the right-channel microphone and the first Bluetooth module respectively. 10. The earphone according to claim 7, wherein the left channel microphone is located on the side of the left earphone facing away from the earplug, and the right channel microphone is located on the right earphone opposite to the earplug. side away from. 11. A mobile terminal, characterized in that, comprising: A second communication circuit that receives a left-channel microphone signal and a right-channel microphone signal sent by an earphone, and the second communication circuit is communicatively connected to the earphone; Mixing and synthesizing the left channel microphone signal and the right channel microphone signal to obtain a signal mixing circuit of a stereo recording file, and the signal mixing circuit is electrically connected to the second communication circuit. 12. The mobile terminal according to claim 11, wherein the second communication circuit is a second Bluetooth module that establishes a wireless communication connection with the first Bluetooth module on the earphone. 13. The mobile terminal according to claim 12, wherein the signal mixing circuit comprises: A central processor for obtaining the left channel microphone signal and the right channel microphone signal, the central processor is electrically connected to the second Bluetooth module; Mixing and synthesizing the left-channel microphone signal and the right-channel microphone signal to obtain an audio codec for a stereo recording file, and the audio codec is electrically connected to the central processing unit.