CN113808557A - Vehicle-mounted audio processing system, method and device - Google Patents
Vehicle-mounted audio processing system, method and device Download PDFInfo
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- CN113808557A CN113808557A CN202010534327.2A CN202010534327A CN113808557A CN 113808557 A CN113808557 A CN 113808557A CN 202010534327 A CN202010534327 A CN 202010534327A CN 113808557 A CN113808557 A CN 113808557A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
- G10H1/366—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems with means for modifying or correcting the external signal, e.g. pitch correction, reverberation, changing a singer's voice
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
- G10L2015/223—Execution procedure of a spoken command
Abstract
The invention discloses a vehicle-mounted audio processing system, a method and a device, wherein the vehicle-mounted audio processing system has a plurality of different working modes, the working modes comprise a karaoke mode, a microphone arranged in a vehicle is used for acquiring sound signals in the vehicle, if the vehicle-mounted audio processing system is in the karaoke mode, an audio processor optimizes the sound signals according to an audio optimization strategy of the karaoke mode to acquire a first target sound signal, and an audio power amplifier device amplifies the first target sound signal and outputs the first target sound signal to a vehicle-mounted loudspeaker for playing; in the invention, the vehicle-mounted audio processing system has multiple working modes, realizes the coupling of the vehicle-mounted karaoke function and the existing vehicle-mounted audio processing function, increases the functional diversity of the vehicle-mounted audio processing system, simplifies the user operation, and improves the operability and the convenience of the system. And the built-in microphone is arranged on the vehicle, so that a user can sing in the vehicle without holding the microphone, and the vehicle is tidier and more beautiful.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted entertainment systems, in particular to a vehicle-mounted audio processing system, method and device.
Background
Generally, the entertainment mode of a vehicle is single, people in the vehicle sit on the vehicle for a long time to passively receive information, the people in the vehicle are not only boring and easy to fatigue, and in order to eliminate the fatigue of the people in the vehicle in the driving process and improve the travel entertainment, the entertainment system on the vehicle is more and more abundant. At present, entertainment systems equipped in vehicles are designed for multiple functions required by users, and entertainment functions which can be achieved by households are brought into the vehicles as much as possible. If the vehicle-mounted karaoke system has the music playing function, the vehicle-mounted karaoke system can be used for singing. In a conventional vehicle karaoke system, a karaoke function is added to a vehicle audio host, and a pickup function is performed by externally connecting a wired Microphone (MIC) to an audio input interface (AUX) or transmitting a signal acquired by the wireless MIC to an FM receiver.
The disadvantages of this type of vehicle-mounted karaoke system are quite obvious: use wireless MIC singing, have obvious audio delay, and be solitary microphone with wired MIC the same, do not well place and lose easily, the driving in-process, the driver can increase the danger of driving if using handheld microphone, produces the potential safety hazard, consequently the driver can't use, maneuverability is poor and use inconvenient in narrow and small space, back row user people K sings and experiences poorly, and the convenience is poor. In addition, the existing vehicle-mounted karaoke system and the audio processing hardware system used for communication in the vehicle are independent systems, namely the vehicle-mounted karaoke system and the vehicle-mounted audio processing system used for communication are required to be arranged in the vehicle at the same time, and the complexity of the system is increased.
Disclosure of Invention
The invention provides a vehicle-mounted audio processing system, a method and a device, which aim to solve the problems of complex system and low convenience caused by mutually independent arrangement of a vehicle-mounted karaoke system and the conventional vehicle-mounted audio processing system in the prior art.
An in-vehicle audio processing system having a plurality of different operating modes, including a karaoke mode, the system comprising:
the vehicle built-in microphone is used for acquiring sound signals in the vehicle;
the audio processor is used for optimizing the sound signal according to an audio optimization strategy of the karaoke mode to acquire a first target sound signal if the vehicle-mounted audio processing system is in the karaoke mode;
and the audio power amplifier equipment is used for amplifying the first target sound signal and outputting the amplified first target sound signal to a vehicle-mounted loudspeaker for playing.
Further, a plurality of the in-vehicle microphones are arranged in the vehicle.
Further, the audio processor performs optimization processing on the sound signal according to the audio optimization policy of the karaoke mode to obtain a first target sound signal specifically as follows:
and the audio processor simultaneously performs noise elimination and cancellation processing on the sound signal, and performs secondary processing on the sound signal subjected to the noise elimination and cancellation processing according to a scene mode of the karaoke mode to acquire the first target sound signal.
Further, the secondary processing of the sound signal subjected to the noise canceling and cancellation processing by the audio processor includes: reverberation processing, delay processing, equalization processing and gain compensation processing.
Furthermore, the working mode also comprises a telephone mode and a voice recognition mode, and the vehicle-mounted audio processing system also comprises an audio preprocessing module;
if the vehicle-mounted audio processing system is in the telephone mode or the voice recognition mode, the audio preprocessing module is used for performing denoising processing on the sound signal to obtain a denoising sound signal; the noise-eliminating sound signal is subjected to echo eliminating processing to obtain an echo-eliminating sound signal, and the echo-eliminating sound signal is output to the audio processor;
the audio processor is used for reprocessing the echo cancellation sound signal by an optimization strategy corresponding to the telephone mode or the voice recognition mode so as to obtain a second target sound signal;
if the vehicle-mounted audio processing system is in the telephone mode, the audio processor is used for outputting the second target sound signal to opposite-end communication equipment;
and if the vehicle-mounted audio processing system is in the voice recognition mode, the audio processor is used for carrying out voice recognition processing on the second target sound signal.
A vehicle-mounted audio processing method is used for a vehicle-mounted audio processing system, and the vehicle-mounted audio processing system is the vehicle-mounted audio processing system, and the method comprises the following steps:
determining the current working mode of the vehicle-mounted audio processing system;
and switching the working mode of the vehicle-mounted audio processing system in real time according to the mode switching indication and the current working mode of the vehicle-mounted audio processing system.
Further, the operating modes include a karaoke mode and a telephone mode, and the switching the operating mode of the vehicle-mounted audio processing system in real time according to the mode switching indication and the current operating mode of the vehicle-mounted audio processing system includes:
if the current vehicle-mounted audio processing system is in the karaoke mode, determining whether a signal for entering the telephone mode is received;
if a signal for entering the phone mode is received, determining that a phone mode switching instruction is received and suspending the karaoke mode to enter the phone mode;
and after the telephone mode exits, controlling the vehicle-mounted audio processing system to re-enter the karaoke mode.
Further, the operation mode further includes a voice recognition mode, and the method further includes:
if the current vehicle-mounted audio processing system is in the karaoke mode, determining whether a signal for entering the voice recognition mode is received;
if a signal for entering the voice recognition mode is received, confirming that a voice mode switching instruction is received and sending an exit request of the karaoke mode through a vehicle-mounted terminal so as to exit the karaoke mode;
and after receiving an exit instruction fed back by the user through the vehicle-mounted terminal, exiting the karaoke mode and entering the voice recognition mode.
Further, the method further comprises:
if the vehicle-mounted audio processing system is in the voice recognition mode at present, determining whether a signal for entering the karaoke mode is received;
if the signal for entering the karaoke mode is received, sending a request for entering the karaoke mode to the vehicle-mounted terminal;
and if a confirmation instruction fed back by the vehicle-mounted terminal according to the request for entering the karaoke mode is received, exiting the voice recognition mode and entering the karaoke mode.
A vehicular audio processing device is used for a vehicular audio processing system, and the vehicular audio processing system is the vehicular audio processing system, and the device comprises:
the determining module is used for determining the current working mode of the vehicle-mounted audio processing system;
and the switching module is used for switching the working mode of the vehicle-mounted audio processing system in real time according to the mode switching indication and the current working mode of the vehicle-mounted audio processing system.
An in-vehicle audio processing apparatus comprises a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor implements the steps of the in-vehicle audio processing method when executing the computer program.
A readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned car audio processing method.
In the invention, the built-in microphone is arranged on the vehicle, so that the vehicle-mounted audio processing system is realized in a karaoke mode and other working modes, the vehicle-mounted audio processing system has multiple working modes, the coupling of the vehicle-mounted karaoke function and the existing vehicle-mounted audio processing function is realized, the system complexity is reduced, the functional diversity of the vehicle-mounted audio processing system is increased, a user can sing in the vehicle without holding a microphone, and the problems of the system complexity and the low convenience caused by the mutually independent arrangement of the vehicle-mounted karaoke system and the existing vehicle-mounted audio processing system are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of an embodiment of an in-vehicle audio processing system;
FIG. 2 is a schematic diagram of another configuration of an in-vehicle audio processing system according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for processing vehicular audio in accordance with an embodiment of the present invention;
FIG. 4 is a flowchart of one implementation of step S20 in FIG. 3;
FIG. 5 is a schematic structural diagram of an in-vehicle audio processing apparatus according to an embodiment of the present invention;
fig. 6 is another schematic structural diagram of the car audio processing device according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a vehicular audio processing system according to the present invention is now described, where the vehicular audio processing system has a plurality of different operating modes, and the operating modes include a karaoke mode, and the vehicular audio processing system specifically includes:
the vehicle incorporates a microphone 101 for acquiring a sound signal in the vehicle.
A vehicle-mounted Microphone (MIC) is fixedly disposed on an interior trim of the vehicle for acquiring a sound signal within the vehicle to pick up a sound initiated by a user within the vehicle. The setting of the built-in microphone of vehicle is different from the handheld microphone of current wired and wireless, and it does not need handheld can realize the pickup worker function of user, has liberated user's both hands to improve driver's driving safety, improved the interior singing of car and experienced, make beautifully clean and tidy more in the car.
And the audio processor 102 is configured to, if the vehicle-mounted audio processing system is in the karaoke mode, perform optimization processing on the sound signal according to an audio optimization policy of the karaoke mode to obtain a first target sound signal.
If the vehicle-mounted AUDIO processing system is in the karaoke mode, an AUDIO processor (such as an AUDIO DSP) performs optimization processing on the sound signals acquired by the overhead light microphone according to an AUDIO optimization strategy of the karaoke mode to acquire first target sound signals.
And the audio power amplifier device 103 is used for amplifying the first target sound signal and outputting the amplified first target sound signal to a vehicle-mounted loudspeaker for playing.
The method comprises the steps that a first target sound signal is obtained in a vehicle-mounted audio processing system, the first target sound signal is amplified by audio power amplification equipment, and the amplified first target sound signal is output to a vehicle-mounted loudspeaker to be played.
In the embodiment, the vehicle-mounted audio processing system has a plurality of different working modes, wherein the working modes comprise a karaoke mode, a microphone arranged in a vehicle is used for acquiring a sound signal in the vehicle, if the vehicle-mounted audio processing system is in the karaoke mode, an audio processor performs optimization processing on the sound signal according to an audio optimization strategy of the karaoke mode to acquire a first target sound signal, and an audio power amplifier device amplifies the first target sound signal and outputs the amplified first target sound signal to a vehicle-mounted loudspeaker for playing; through set up built-in microphone on the car, let vehicle-mounted audio processing system realize in karaoke mode and other mode, it is to make vehicle-mounted audio processing system have multiple mode, the coupling of vehicle-mounted karaoke function and current vehicle-mounted audio processing function has been realized, the system complexity has been reduced, vehicle-mounted audio processing system's functional diversity has been increased, and the user can be in the car singing without handheld microphone, the system complexity that vehicle-mounted karaoke system and current vehicle-mounted audio processing system mutually independent set up and lead to has been solved, the lower problem of convenience.
Further, a plurality of in-vehicle microphones are arranged in the vehicle. After the sound pickup of the plurality of vehicle built-in microphones, sound signals are sent to the audio processor to be subjected to fusion processing, so that sound sources are added, the sound signals are clearer and more complete, the acquisition capacity of the vehicle built-in microphones on the sound signals is improved, and the subsequent effect of playing the sound is improved.
For example, the vehicle-mounted microphone may be disposed on the vehicle interior, such as the vehicle console, the a/B pillar, the front seat, the rear seat, and the ceiling, to improve the capability of the vehicle-mounted microphone to acquire sound signals, thereby improving the subsequent sound playing effect.
In this embodiment, the microphones disposed in the center console, the a/B pillar, the front seat, the rear seat, and the ceiling of the vehicle are merely exemplary illustrations, and in other embodiments, the microphones may be disposed in other places in the vehicle, which is not described herein again.
Further, as a specific implementation manner of the in-vehicle audio processing system provided by this embodiment, the in-vehicle microphone is a roof light microphone, and the roof light microphone includes a first microphone and a second microphone, and the first microphone and the second microphone are disposed on a roof light of a vehicle.
In this embodiment, the built-in microphone of the vehicle is a ceiling lamp microphone, that is, the microphone is arranged on the ceiling lamp of the vehicle, so that the microphone is higher in position and has a better sound pickup effect. And the dome lamp microphone includes first microphone and second microphone, and on the dome lamp of vehicle was arranged in to first microphone and second microphone equipartition, send sound signal to audio processor behind first microphone and the second microphone pickup and merge the processing, increased the sound source for sound signal is more clear complete, has improved the ability of acquireing of dome lamp microphone to sound signal, thereby has improved follow-up effect of broadcast to sound.
Further, as a specific implementation manner of the vehicle-mounted audio processing system provided by this embodiment, the dome lamp microphone further includes a third microphone and a fourth microphone, the first microphone and the second microphone are disposed on the front row dome lamp of the vehicle, and the third microphone and the fourth microphone are disposed on the rear row dome lamp of the vehicle, so that a user in the rear row can obtain a better singing experience.
In this embodiment, the dome lamp microphone still includes third microphone and fourth microphone, on the basis that the preceding row dome lamp has set up first microphone and second microphone, still set up third microphone and fourth microphone at the back row dome lamp, the ability of acquireing to back row user's sound has been increased, 4 inside sound of whole car of picking up of microphone ability is better, the variety of sound source has been added, make sound signal more clear complete, the ability of acquireing to sound signal of dome lamp microphone has further been improved, thereby follow-up effect of broadcast is carried out to sound has further been improved, and make the user of back row can obtain better singing experience.
In the following embodiments, a microphone built in a vehicle is taken as an overhead light microphone as an example for explanation.
Further, as a specific implementation manner of the vehicle-mounted audio processing system provided in this embodiment, the audio processor performs optimization processing on the sound signal according to the audio optimization policy of the karaoke mode, so as to obtain a first target sound signal, specifically:
and the audio processor simultaneously performs noise elimination and cancellation processing on the sound signal, and performs secondary processing on the sound signal subjected to the noise elimination and cancellation processing according to a scene mode of the karaoke mode to acquire the first target sound signal.
It is to be understood that noise cancellation, also called noise suppression, is based on the principle of performing spectral analysis on a real-time sampled digital sound signal, analyzing the intensity and spectral distribution of the background noise response, and then designing a filter based on this model. When the matched sound signal is received, the sound signal is analyzed, the frequency spectrum of the sound is analyzed, the processing can be carried out according to the frequency spectrums of the background noise and the human voice, the frequency spectrum of the human voice is allowed to pass through, the frequency spectrum of the background noise is restrained, the energy of the background noise is reduced, and the sound after noise suppression can be obtained.
The basic principle of echo cancellation, namely echo cancellation of sound, is that a voice model of a far-end signal is established on the basis of the correlation between a sound signal played by a vehicle-mounted loudspeaker and a multipath echo generated by the sound signal, the echo is estimated by using the voice model, and the coefficient of a filter is continuously modified, so that the estimated value is closer to the real echo. Then, the echo estimation value is subtracted from the sound signal picked up by the microphone, so as to achieve the purpose of eliminating the echo.
In this embodiment, if the vehicle-mounted audio processing system is in the karaoke mode, the optimization processing of the audio signal according to the audio optimization policy of the karaoke mode includes: after the ceiling lamp microphone acquires the sound signal in the vehicle, the audio processor simultaneously performs noise elimination and echo elimination on the sound signal acquired by the ceiling lamp microphone, and performs secondary processing on the sound signal subjected to the noise elimination and echo elimination according to the scene mode of the karaoke mode to acquire a first target sound signal.
Further, as a specific implementation manner of the in-vehicle audio processing system provided by this embodiment, the secondary processing of the sound signal subjected to the noise cancellation and cancellation processing by the audio processor includes: reverberation processing, delay processing, equalization processing and gain compensation processing.
In this embodiment, different processing parameters are set for reverberation processing, delay processing, equalization processing, gain compensation, and the like, and the sound signal is made to have different effects by changing the processing parameters.
For example, the scene modes of the karaoke mode include scene modes such as a recording studio, a concert hall, and a concert. In each scene mode, parameters such as reverberation processing for secondarily processing the sound signal are different, so that the singing voice has different effects. For example, when the scene mode of the karaoke mode is a concert, the vocal spatial sense is broader.
In this embodiment, the scene modes of the karaoke mode including the scene modes of the recording studio, the concert hall, the concert, and the like are only exemplary, and in other embodiments, the scene modes of the karaoke mode may further include other scene modes, which are not described herein again.
In the existing audio processing system, the special noise elimination module is needed for the noise elimination and noise elimination processing of the sound, and when the noise elimination and noise elimination processing of the sound is carried out, the processing time cannot be the same, so that the effect is poor after the sound signal is played, and the sound which is processed by the existing audio processing system is eliminated and noise elimination has voiceprint encryption watermarks.
In this embodiment, if the vehicle-mounted audio processing system is in the karaoke mode, the audio processor performs noise elimination and cancellation processing on the sound signal at the same time, and performs secondary processing on the sound signal subjected to the noise elimination and cancellation processing according to the scene mode of the karaoke mode to acquire the first target sound signal, so that the playing effect of subsequent singing is improved, and a user has better experience of singing in a vehicle.
It should be understood that in current car audio processing systems, no reverberation processing is performed on sound. However, when singing in a car, if the singing is not subjected to reverberation processing, the finally played singing will be dry, so that hidden troubles and uncomfortable listening feeling are caused, and the singing experience of a user is reduced. The time delay is to enhance the thickness of the voice and increase the layering sense, so that the voice and the accompanying sound can be more uniform. Equalization processing (EQ) and gain compensation processing of specific frequency bands are used for further fine adjustment of sound of each frequency band, the problems of uneven frequency spectrum of sound signals and the like are solved, and human voice can be highlighted through gain.
In this embodiment, if the vehicle-mounted audio processing system is in the karaoke mode, the reverberation processing is newly added to the first target sound signal, the spatial effect of sound is realized through simulation by using algorithm processing, and the delay processing, the equalization processing and the gain compensation processing are also performed on the first target sound signal, the sound signal is adjusted and the adjustment range and the fine adjustment granularity are enlarged, so that the finally output singing effect is better, the playing effect of subsequent singing is further improved, and the user has better in-vehicle singing experience.
Further, as shown in fig. 2, as a specific implementation manner of the vehicle-mounted audio processing system provided in this embodiment, the operating mode further includes a phone mode and a voice recognition mode, and the vehicle-mounted audio processing system further includes an audio preprocessing module 104;
if the vehicle-mounted audio processing system is in a telephone mode or a voice recognition mode, the audio preprocessing module 104 is configured to perform denoising processing on the sound signal to obtain a denoising sound signal; and the cancellation noise sound signal is processed to cancel back to obtain a cancellation sound signal and then output to the audio processor;
the audio processor is used for reprocessing the echo signal according to an optimization strategy corresponding to the telephone mode or the voice recognition mode so as to obtain a second target sound signal;
if the vehicle-mounted audio processing system is in a telephone mode, the audio processor is used for outputting a second target sound signal to the opposite-end communication equipment;
and if the vehicle-mounted audio processing system is in the voice recognition mode, the audio processor is used for carrying out voice recognition processing on the second target sound signal.
The audio processor performs reprocessing on the echo cancellation signal according to an optimization strategy corresponding to the telephone mode or the voice recognition mode, wherein the reprocessing includes delay processing, equalization processing and gain compensation processing of the echo cancellation signal, so as to obtain a second target sound signal, and therefore the playing effect of the sound signal is improved subsequently.
In this embodiment, the working mode of the vehicle-mounted audio processing system further includes a phone mode and a voice recognition mode, and the vehicle-mounted audio processing system further includes an audio preprocessing module, when the working mode of the vehicle-mounted audio processing system is the phone mode or the voice recognition mode, after the dome light microphone acquires the sound signal in the vehicle, the audio preprocessing module performs denoising processing on the sound signal to obtain a denoising sound signal, performs canceling processing on the denoising sound signal to obtain a canceling sound signal, and outputs the canceling sound signal to the audio processor, and then the audio processor performs reprocessing on the canceling sound signal according to an optimization strategy corresponding to the phone mode or the voice recognition mode to acquire the second target sound signal. After the second target sound signal is obtained, if the working mode of the vehicle-mounted audio processing system is a telephone mode, the second target sound signal is output to opposite-end communication equipment so that the two parties can communicate; and if the working mode of the vehicle-mounted audio processing system is the voice recognition mode, performing voice recognition processing on the second target sound signal so as to enable a user to normally use the vehicle-mounted voice recognition function.
In this embodiment, when the working mode of the vehicle-mounted audio processing system is the karaoke mode, the audio preprocessing module performs function communication, that is, after the dome lamp microphone acquires the sound signal in the vehicle, the audio preprocessing module does not process the sound signal, but directly transmits the sound signal to the audio processor, and the audio processor performs cancellation and denoising processing on the sound signal at the same time, so as to improve the sound playing effect in the karaoke mode, and the karaoke mode, the call mode, and the voice recognition mode can be realized by using the processing method shown in fig. 2, so that the system coupling degree is high, and the system complexity is reduced.
As shown in fig. 3, the present embodiment provides a vehicle audio processing method, which can be applied to the vehicle audio processing system shown in fig. 2, and the method specifically includes the following steps:
s10: the current operating mode of the in-vehicle audio processing system is determined.
In this embodiment, the specific definition of the car audio processing system may be referred to above, and is not described herein again.
The vehicle-mounted audio processing system has different working modes, and the different working modes have different functions and corresponding audio optimization strategies. The user in the vehicle can determine the working mode of the vehicle-mounted audio processing system according to the requirement of the user so as to meet different requirements, and therefore the working mode of the current vehicle-mounted audio processing system needs to be determined firstly.
S20: and switching the working mode of the vehicle-mounted audio processing system in real time according to the mode switching instruction and the working mode of the current vehicle-mounted audio processing system.
And after the working mode of the current vehicle-mounted audio processing system is determined, switching the working mode of the vehicle-mounted audio processing system in real time according to the received mode switching instruction and the working mode of the current vehicle-mounted audio processing system so as to meet different requirements of users.
In the embodiment, the working mode of the current vehicle-mounted audio processing system is determined, and then the working mode of the vehicle-mounted audio processing system is switched in real time according to the mode switching indication and the working mode of the current vehicle-mounted audio processing system, so that different working modes are provided to meet different requirements of a user, and the driving experience is improved.
In an embodiment, the operation modes of the car audio processing system include a karaoke mode and a phone mode, as shown in fig. 4, in step S20, that is, the operation mode of the car audio processing system is switched in real time according to the mode switching indication and the current operation mode of the car audio processing system, which specifically includes the following steps:
s21: it is determined whether the current in-vehicle audio processing system is in karaoke mode.
S22: if the current in-vehicle audio processing system is in the karaoke mode, it is determined whether a signal to enter the phone mode is received.
After determining that the current operating mode of the in-vehicle audio processing system is the karaoke mode, determining whether a signal for entering a phone mode is received while the in-vehicle audio processing system is in the karaoke mode.
In this embodiment, if a call incoming signal, an earphone insertion signal, and a phone mode key are received, it is determined that a signal for entering a phone mode is received; when a user selects the karaoke mode through the APP and triggers a karaoke mode button, a signal for entering the karaoke mode is determined to be received.
In this embodiment, when receiving a call incoming signal, an earphone insertion signal, and triggering a phone mode key, determining that a signal for entering a phone mode is received is only an exemplary description, and in other embodiments, determining that a signal for entering a phone mode is received may be in other manners, which is not described herein again.
In this embodiment, when the user selects the karaoke mode through the APP and triggers the karaoke mode button, the determination of receiving the signal to enter the karaoke mode is only an exemplary description, and in other embodiments, the determination of receiving the signal to enter the karaoke mode may be in other manners, which is not described herein again.
In this embodiment, the phone mode may be a vehicle bluetooth phone mode.
S23: if a signal for entering a telephone mode is received, it is determined that a telephone mode switching instruction is received and a karaoke mode is suspended to enter the telephone mode.
In the working mode of the vehicle-mounted audio processing system, the priority of the telephone mode is highest, so that when the vehicle-mounted audio processing system is in the karaoke mode, if a signal for entering the telephone mode is received, the telephone mode switching indication is determined to be received, the karaoke mode needs to be suspended to enter the telephone mode, a user can answer the telephone in time, the user is prevented from missing telephone information, and the user experience is improved.
In this embodiment, the phone mode may be a vehicle bluetooth phone mode, and in other embodiments, the phone mode may also be another phone mode, which is not described herein again.
S24: it is determined whether the phone mode has been exited.
After entering the phone mode, it is determined in real time whether the in-vehicle audio processing system has exited the phone mode to control the in-vehicle audio processing system according to the determination result.
S25: and if the telephone mode is determined to be exited, controlling the vehicle-mounted audio processing system to reenter the karaoke mode after the telephone mode is exited.
And after the telephone of the user finishes the conversation, the telephone mode exits, and after the telephone mode exits, the vehicle-mounted audio processing system is controlled to reenter the karaoke mode so as to enable the user to continue singing.
In this embodiment, if the current car audio processing system is in the karaoke mode, it is determined whether a signal for entering the phone mode is received, if the signal for entering the phone mode is received, it is determined that a phone mode switching instruction is received and the karaoke mode is suspended to enter the phone mode, and after the phone mode exits, the car audio processing system is controlled to re-enter the karaoke mode, so that a user can answer a phone in time in the karaoke mode, so as to avoid missing phone information, and improve user experience.
In an embodiment, the operating mode of the car audio processing system includes a speech recognition mode, and after determining whether the current car audio processing system is in the karaoke mode, the method specifically includes the following steps:
s26: if the current vehicle-mounted audio processing system is in the karaoke mode, whether a signal for entering a voice recognition mode is received or not is determined.
After determining that the current operating mode of the in-vehicle audio processing system is the karaoke mode, determining whether a signal for entering a voice recognition mode is received while the in-vehicle audio processing system is in the karaoke mode.
In this embodiment, when the user calls a specific keyword, selects the voice recognition mode through the APP, and triggers the voice recognition key, it is determined that a signal for entering the voice recognition mode is received.
In this embodiment, when the user calls a specific keyword, selects a speech recognition mode through the APP, and triggers a speech recognition key, the determination of receiving the signal entering the speech recognition mode is only an exemplary description, and in other embodiments, the determination of receiving the signal entering the speech recognition mode may be in other manners, which is not described herein again.
S27: and if a signal for entering the voice recognition mode is received, confirming that the voice mode switching instruction is received and sending an exit request of the karaoke mode through the vehicle-mounted terminal so as to exit the karaoke mode.
In the working mode of the vehicle-mounted audio processing system, the priority of the karaoke mode is the same as that of the voice recognition mode, so that a user is required to judge whether to switch the working mode, and the karaoke mode influences the voice recognition mode.
Therefore, when the vehicle-mounted audio processing system is in the karaoke mode, if a signal for entering the voice recognition mode is received, the fact that the voice mode switching instruction is received is confirmed, and the vehicle-mounted terminal sends out an exit request of the karaoke mode to exit the karaoke mode, so that the voice recognition function in a vehicle is not affected, and the user experience is improved.
S28: and exiting the karaoke mode after receiving an exit instruction fed back by the user through the vehicle-mounted terminal, and entering a voice recognition mode.
After receiving the exit request of the karaoke mode, the user determines whether to exit the karaoke mode according to the requirement.
And exiting the karaoke mode after receiving an exit instruction fed back by the user through the vehicle-mounted terminal, and entering a voice recognition mode.
When the karaoke mode is in the karaoke mode, if a signal for entering the telephone mode and/or the voice recognition mode is not received all the time, the system automatically enters a waiting mode after the karaoke mode is ended so as to enter the telephone mode and the voice recognition mode.
In this embodiment, if the current vehicle-mounted audio processing system is in the karaoke mode, it is determined whether a signal for entering the voice recognition mode is received, if the signal for entering the voice recognition mode is received, it is determined that a voice mode switching instruction is received and an exit request of the karaoke mode is sent by the vehicle-mounted terminal, so as to exit the karaoke mode, the karaoke mode exits after the exit instruction fed back by the user through the vehicle-mounted terminal is received, and the karaoke mode enters the voice recognition mode, and it is determined whether to switch to the voice recognition mode according to the user's requirement, so that the vehicle-mounted audio processing system has stronger adaptability, the practicability of the vehicle-mounted audio processing system is improved, and the user experience is improved.
In an embodiment, the method specifically further includes the following steps:
s281: if the current vehicle-mounted audio processing system is in the voice recognition mode, whether a signal for entering a karaoke mode is received or not is determined.
After determining that the current working mode of the vehicle-mounted audio processing system is the voice recognition mode, determining whether a signal for entering a karaoke mode is received when the vehicle-mounted audio processing system is in the voice recognition mode.
S282: if a signal for entering the karaoke mode is received, sending a request for entering the karaoke mode to the vehicle-mounted terminal;
and if the signal for entering the karaoke mode is received, sending a request for entering the karaoke mode to the vehicle-mounted terminal, so that a subsequent user can determine whether to enter the karaoke mode according to the requirement after receiving the request for entering the karaoke mode.
S283: and if a confirmation instruction fed back by the vehicle-mounted terminal according to the request for entering the karaoke mode is received, exiting the voice recognition mode and entering the karaoke mode.
And if a confirmation instruction fed back by the vehicle-mounted terminal according to the request for entering the karaoke mode is received, namely the user confirms that the karaoke mode is entered, exiting the voice recognition mode and entering the karaoke mode.
In this embodiment, if the current vehicle-mounted audio processing system is in the voice recognition mode, it is determined whether a signal for entering the karaoke mode is received, if the signal for entering the karaoke mode is received, a request for entering the karaoke mode is sent to the vehicle-mounted terminal, if a confirmation instruction fed back by the vehicle-mounted terminal according to the request for entering the karaoke mode is received, the vehicle-mounted terminal exits from the voice recognition mode and enters the karaoke mode, and whether the vehicle-mounted audio processing system is switched to the karaoke mode is determined according to a user requirement, so that the vehicle-mounted audio processing system has stronger adaptability, the practicability of the vehicle-mounted audio processing system is improved, and the user experience is improved.
In one embodiment, if the current vehicle-mounted audio processing system is in the voice recognition mode, whether a signal for entering the telephone mode is received is determined, if the signal for entering the telephone mode is received, the telephone mode switching instruction is determined to be received, and the voice recognition mode is suspended or exited to enter the telephone mode, so that a user can answer the telephone in time in the karaoke mode, telephone information is prevented from being missed, and user experience is improved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In an embodiment, a vehicle-mounted audio processing device is provided, and the vehicle-mounted audio processing device is used in the vehicle-mounted audio processing system, and the vehicle-mounted audio processing device corresponds to the vehicle-mounted audio processing method in the embodiment one to one. As shown in fig. 5, the in-vehicle audio processing apparatus includes a determination module 501 and a switching module 502. The functional modules are explained in detail as follows:
a determining module 501, configured to determine a current operating mode of the vehicle-mounted audio processing system;
a switching module 502, configured to switch the working mode of the vehicle-mounted audio processing system in real time according to a mode switching instruction and the current working mode of the vehicle-mounted audio processing system.
Further, the working modes include a hook mode and a phone mode, and the switching module 502 is specifically configured to:
if the current vehicle-mounted audio processing system is in a karaoke mode, determining whether a signal for entering the telephone mode is received;
if a signal for entering the phone mode is received, determining that a phone mode switching instruction is received and suspending the karaoke mode to enter the phone mode;
and after the telephone mode exits, controlling the vehicle-mounted audio processing system to re-enter the karaoke mode.
Further, the working modes further include a voice recognition mode, and the switching module 502 is further specifically configured to:
if the current vehicle-mounted audio processing system is in the karaoke mode, determining whether a signal for entering the voice recognition mode is received;
if a signal for entering the voice recognition mode is received, confirming that a voice mode switching instruction is received and sending an exit request of the karaoke mode through a vehicle-mounted terminal so as to exit the karaoke mode;
and after receiving an exit instruction fed back by the user through the vehicle-mounted terminal, exiting the karaoke mode and entering the voice recognition mode.
Further, the switching module 502 is further specifically configured to:
if the vehicle-mounted audio processing system is in the voice recognition mode at present, determining whether a signal for entering the karaoke mode is received;
if the signal for entering the karaoke mode is received, sending a request for entering the karaoke mode to the vehicle-mounted terminal;
and if a confirmation instruction fed back by the vehicle-mounted terminal according to the request for entering the karaoke mode is received, exiting the voice recognition mode and entering the karaoke mode.
For specific limitations of the car audio processing device, reference may be made to the above limitations of the car audio processing method, which are not described herein again. The modules in the vehicle-mounted audio processing device can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a vehicular audio processing apparatus is provided that includes a processor, a memory, connected by a system bus. Wherein, the processor of the vehicle-mounted audio processing device is used for providing calculation and control capability. The memory of the vehicle-mounted audio processing device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The computer program is executed by a processor to implement a vehicular audio processing method.
In one embodiment, as shown in fig. 6, there is provided a car audio processing apparatus, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the car audio processing method when executing the computer program.
In one embodiment, a readable storage medium is provided, on which a computer program is stored, which computer program, when executed by a processor, implements the above-described in-vehicle audio processing method.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. An in-vehicle audio processing system having a plurality of different operating modes, including a karaoke mode, the system comprising:
the vehicle built-in microphone is used for acquiring sound signals in the vehicle;
the audio processor is used for optimizing the sound signal according to an audio optimization strategy of the karaoke mode to acquire a first target sound signal if the vehicle-mounted audio processing system is in the karaoke mode;
and the audio power amplifier equipment is used for amplifying the first target sound signal and outputting the amplified first target sound signal to a vehicle-mounted loudspeaker for playing.
2. The vehicular audio processing system according to claim 1, wherein a plurality of the vehicular-mounted microphones are arranged in the vehicle.
3. The car audio processing system according to any one of claims 1 or 2, wherein the audio processor performs optimization processing on the sound signal according to the audio optimization policy of the karaoke mode to obtain a first target sound signal specifically:
and the audio processor simultaneously performs noise elimination and cancellation processing on the sound signal, and performs secondary processing on the sound signal subjected to the noise elimination and cancellation processing according to a scene mode of the karaoke mode to acquire the first target sound signal.
4. The in-vehicle audio processing system of claim 3, wherein the secondary processing of the sound signal subjected to the noise canceling and cancellation processing by the audio processor comprises: reverberation processing, delay processing, equalization processing and gain compensation processing.
5. The car audio processing system of any of claims 1 or 2, wherein the operating modes further include a phone mode and a voice recognition mode, the car audio processing system further comprising an audio pre-processing module;
if the vehicle-mounted audio processing system is in the telephone mode or the voice recognition mode, the audio preprocessing module is used for performing denoising processing on the sound signal to obtain a denoising sound signal; the noise-eliminating sound signal is subjected to echo eliminating processing to obtain an echo-eliminating sound signal, and the echo-eliminating sound signal is output to the audio processor;
the audio processor is used for reprocessing the echo cancellation sound signal by using an audio optimization strategy corresponding to the telephone mode or the voice recognition mode so as to obtain a second target sound signal;
if the vehicle-mounted audio processing system is in the telephone mode, the audio processor is used for outputting the second target sound signal to opposite-end communication equipment;
and if the vehicle-mounted audio processing system is in the voice recognition mode, the audio processor is used for carrying out voice recognition processing on the second target sound signal.
6. A car audio processing method for use in a car audio processing system according to any one of claims 1 to 5, the method comprising:
determining the current working mode of the vehicle-mounted audio processing system;
and switching the working mode of the vehicle-mounted audio processing system in real time according to the mode switching indication and the current working mode of the vehicle-mounted audio processing system.
7. The car audio processing method according to claim 6, wherein the operation modes include a karaoke mode and a telephone mode, and the switching the operation mode of the car audio processing system in real time according to the mode switching indication and the current operation mode of the car audio processing system comprises:
if the current vehicle-mounted audio processing system is in the karaoke mode, determining whether a signal for entering the telephone mode is received;
if a signal for entering the phone mode is received, determining that a phone mode switching instruction is received and suspending the karaoke mode to enter the phone mode;
and after the telephone mode exits, controlling the vehicle-mounted audio processing system to re-enter the karaoke mode.
8. The method of vehicular audio processing according to claim 7, wherein the operating mode further comprises a speech recognition mode, the method further comprising:
if the current vehicle-mounted audio processing system is in the karaoke mode, determining whether a signal for entering the voice recognition mode is received;
if a signal for entering the voice recognition mode is received, confirming that a voice mode switching instruction is received and sending an exit request of the karaoke mode through a vehicle-mounted terminal so as to exit the karaoke mode;
and after receiving an exit instruction fed back by the user through the vehicle-mounted terminal, exiting the karaoke mode and entering the voice recognition mode.
9. The car audio processing method according to claim 8, characterized in that the method further comprises:
if the vehicle-mounted audio processing system is in the voice recognition mode at present, determining whether a signal for entering the karaoke mode is received;
if the signal for entering the karaoke mode is received, sending a request for entering the karaoke mode to the vehicle-mounted terminal;
and if a confirmation instruction fed back by the vehicle-mounted terminal according to the request for entering the karaoke mode is received, exiting the voice recognition mode and entering the karaoke mode.
10. An in-vehicle audio processing apparatus for an in-vehicle audio processing system according to any one of claims 1 to 5, the apparatus comprising:
the determining module is used for determining the current working mode of the vehicle-mounted audio processing system;
and the switching module is used for switching the working mode of the vehicle-mounted audio processing system in real time according to the mode switching indication and the current working mode of the vehicle-mounted audio processing system.
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| CN115831131A (en) * | 2023-01-15 | 2023-03-21 | 中国科学技术大学 | Deep learning-based audio watermark embedding and extracting method |
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