CN116996811A - Vehicle-mounted audio processing system and method based on intelligent tuning - Google Patents
Vehicle-mounted audio processing system and method based on intelligent tuning Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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Abstract
The embodiment of the application relates to the technical field of vehicle audio processing, and provides a vehicle audio processing system and method based on intelligent tuning. The intelligent frequency spectrum processing box is provided with an internal microphone and a processor chip, the internal microphone is in signal connection with the processor chip and is used for receiving audio test signals sent by the playing of the internal speakers of different parts in the vehicle, the audio test signals are transmitted to the processor chip for tuning, the processor chip responds to a tuning request to send tuning test signals, the vehicle DSP module is in signal connection with the processor chip and receives the tuning test signals, and the audio test signals are generated according to the tuning test signals, so that automatic tuning is realized, audio defects are processed, manual tuning is not needed by a tuning operator, personnel in the vehicle are convenient to use, and driving safety is improved.
Description
Technical Field
The embodiment of the application belongs to the technical field of vehicle audio processing, and particularly relates to a vehicle-mounted audio processing system and method based on intelligent tuning.
Background
Along with the continuous development of intelligent cabin technology, audio playing systems are integrated in many vehicles, and various audio playing services are provided for users by matching the vehicle-mounted system with the audio playing systems. In the vehicle, the user can enjoy different audio playing services according to the advantages and disadvantages of the audio playing system, for example, when the audio playing system has a tuning function, the user can enjoy the sound effect after tuning. At present, some vehicle machine systems of vehicles are provided with touch screens capable of being controlled by tuning, users can operate controls of the touch screens to tune, the tuning is only limited to simple mode selection, for example, a dance mode, a surrounding mode and the like, sound effects cannot be adjusted like manual tuning operators, the defect of audio is overcome, high-quality hearing effects are provided for the users, and potential safety hazards are caused by frequent operation of the touch screens in the driving process.
In summary, the existing vehicle-mounted tuning technology has the technical problems that driving operation is not beneficial to driving safety, audio defects cannot be substantially processed, and the like.
Content of the application
Aiming at the defects in the prior art, the application provides a vehicle-mounted audio processing system and method based on intelligent tuning, which are convenient for personnel in a vehicle to use, improve the driving safety and treat the audio defects.
In a first aspect, the present application provides an intelligent tuning-based car audio processing system, comprising:
the intelligent frequency spectrum processing box is provided with a built-in microphone and a processor chip; the built-in microphone is in signal connection with the processor chip and is used for receiving audio test signals sent by the built-in speakers of different parts in the vehicle to transmit to the processor chip for tuning; the processor chip responds to the tuning request and sends out a tuning test signal;
the vehicle DSP module is in signal connection with the processor chip, receives the tuning test signal and generates the audio test signal according to the tuning test signal;
and the vehicle built-in loudspeaker is built in different parts in the vehicle, is connected with the vehicle DSP module through signals, and is used for receiving the audio test signal and playing and sending the audio test signal.
Further, the intelligent frequency spectrum processing box is arranged at a driver's seat for use, and the built-in microphone is used for receiving audio test signals sent by built-in speakers of different parts in the vehicle at the driver's seat for transmission to the processor chip for tuning processing.
Further, the intelligent spectrum processing box is arranged at a co-driver seat for use, and the built-in microphone is used for receiving audio test signals sent by built-in speakers of different parts in the vehicle at the co-driver seat for transmission to the processor chip for tuning processing.
Further, the intelligent frequency spectrum processing box is arranged on a rear seat of a driving seat for use, and the built-in microphone is used for receiving audio test signals sent by built-in speakers of different parts in a vehicle at the rear seat of the driving seat for transmission to the processor chip for tuning processing.
Further, the intelligent frequency spectrum processing box is arranged on a rear seat of the copilot, and the built-in microphone is used for receiving audio test signals sent by built-in speakers of different parts in the vehicle at the rear seat of the copilot so as to transmit the audio test signals to the processor chip for tuning.
Further, the intelligent spectrum processing box is arranged in a vehicle for mobile use, and when the intelligent spectrum processing box is moved from a driving position to a co-driving position for use, the built-in microphone is used for receiving audio test signals sent by built-in speakers of different parts in the vehicle at the driving position, so as to transmit the audio test signals to the processor chip for tuning processing.
Further, the intelligent spectrum processing box is arranged in a vehicle for mobile use, and when the intelligent spectrum processing box is used from a driving position to a driving position rear seat, the built-in microphone is used for receiving audio test signals sent by built-in speakers of different parts in the vehicle at the driving position rear seat for playing, so as to transmit the audio test signals to the processor chip for tuning processing.
Further, the intelligent spectrum processing box is arranged in a vehicle for mobile use, and when the intelligent spectrum processing box is moved from a front passenger seat to a rear seat of the front passenger seat for use, the built-in microphone is used for receiving audio test signals sent by built-in speakers of different parts in the vehicle at the rear seat of the front passenger seat, so as to transmit the audio test signals to the processor chip for tuning processing.
Further, when the processor chip performs tuning processing on the audio test signal, the method comprises the following tuning processing steps:
analyzing and acquiring frequency response parameters and phase parameters of the audio test signals, and playing and sending the audio test signals from the built-in speaker of the vehicle to time parameters received by the built-in microphone;
and comparing the frequency response parameter, the phase parameter and the time parameter with a preset parameter range, and completing tuning when the frequency response parameter, the phase parameter and the time parameter are in the preset parameter range.
In a second aspect, the present application provides a smart tuning-based car audio processing method, which is used in any one of the smart tuning-based car audio processing systems described above; the vehicle-mounted audio processing method based on intelligent tuning comprises the following steps:
the processor chip of the intelligent frequency spectrum processing box responds to the tuning request to send out a tuning test signal;
the processor chip of the intelligent frequency spectrum processing box receives audio test signals sent by the vehicle built-in speakers at different positions in the vehicle, and performs tuning processing; the audio test signal is transmitted and provided by a built-in microphone of the intelligent frequency spectrum processing box;
the processor chip is in signal connection with the vehicle DSP module, and the vehicle DSP module receives the tuning test signal and generates the audio test signal according to the tuning test signal; the built-in speaker of the vehicle is arranged at different positions in the vehicle, is connected with the DSP module of the vehicle in a signal manner, and is used for receiving the audio test signal and playing and sending the audio test signal.
Compared with the prior art, the application has the following beneficial effects:
the application provides a vehicle-mounted audio processing system and method based on intelligent tuning. The intelligent frequency spectrum processing box is provided with an internal microphone and a processor chip, the internal microphone is in signal connection with the processor chip and is used for receiving audio test signals sent by the internal speakers of different positions in the vehicle, and the audio test signals are transmitted to the processor chip for tuning, the processor chip responds to a tuning request to send tuning test signals, the DSP module of the vehicle is in signal connection with the processor chip and receives the tuning test signals, and generates audio test signals according to the tuning test signals, the internal speakers of the vehicle are arranged at different positions in the vehicle and are in signal connection with the DSP module of the vehicle and are used for receiving the audio test signals and sending out the audio test signals, so that automatic tuning is realized, audio defects are processed, manual tuning is not needed by a tuning operator, personnel in the vehicle can use conveniently, and driving safety is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. Some specific embodiments of the application will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings denote the same or similar parts or portions, and it will be understood by those skilled in the art that the drawings are not necessarily drawn to scale, in which:
FIG. 1 is a schematic diagram of an architecture of a smart tuning-based car audio processing system of the present application;
FIG. 2 is a schematic diagram of another architecture of the smart tuning based car audio processing system of the present application;
FIG. 3 is a schematic diagram of another architecture of the smart tuning based car audio processing system of the present application;
FIG. 4 is a schematic diagram of another architecture of the smart tuning based car audio processing system of the present application;
FIG. 5 is a schematic diagram of another architecture of the smart tuning based car audio processing system of the present application;
fig. 6 is a schematic flow chart of the intelligent tuning-based vehicle audio processing method of the present application.
Detailed Description
In order to enable those skilled in the art to better understand the present application, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present application with reference to the accompanying drawings. It will be apparent that the described embodiments are merely some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
Example 1
Referring to fig. 1-6, the application provides a vehicle audio processing system and a method based on intelligent tuning. The intelligent frequency spectrum processing box is provided with an internal microphone and a processor chip, the internal microphone is in signal connection with the processor chip and is used for receiving audio test signals sent by the internal speakers of different positions in the vehicle, and the audio test signals are transmitted to the processor chip for tuning, the processor chip responds to a tuning request to send tuning test signals, the DSP module of the vehicle is in signal connection with the processor chip and receives the tuning test signals, and generates audio test signals according to the tuning test signals, the internal speakers of the vehicle are arranged at different positions in the vehicle and are in signal connection with the DSP module of the vehicle and are used for receiving the audio test signals and sending out the audio test signals, so that automatic tuning is realized, audio defects are processed, manual tuning is not needed by a tuning operator, personnel in the vehicle can use conveniently, and driving safety is improved.
It should be noted that, the tuning request may be triggered by the start-up of the smart spectrum processing box, and the start-up signal of the smart spectrum processing box is used as the tuning request. The tuning request can also be triggered by a tuning button arranged on the intelligent frequency spectrum processing box, and a pressing signal received by the tuning button is used as the tuning request.
If the intelligent spectrum processing box is assembled on a fixed position of the vehicle, because the relative positions of the vehicle built-in speakers at different positions in the vehicle and the intelligent spectrum processing box on the fixed position are fixed, after one tuning, a user at the fixed position can obtain high-quality sound effects after tuning. In some preferred embodiments, the intelligent spectrum processing box is equipped for use in a driver's seat, and the built-in microphone is used for receiving audio test signals sent by built-in speakers of the vehicle at different positions in the vehicle at the driver's seat, so as to transmit the audio test signals to the processor chip for tuning processing. In some preferred embodiments, the smart spectrum processing box is configured for use at a co-driver's seat, and the built-in microphone is configured to receive audio test signals emitted from vehicle built-in speakers at different locations within the vehicle at the co-driver's seat for transmission to the processor chip for tuning. In some preferred embodiments, the intelligent spectrum processing box is equipped for use in a driver's seat back, and the built-in microphone is used for receiving audio test signals emitted by vehicle built-in speakers at different positions in the vehicle at the driver's seat back, so as to transmit the audio test signals to the processor chip for tuning processing. In some preferred embodiments, the intelligent spectrum processing box is equipped for use in a rear seat of a co-driver's seat, and the built-in microphone is used for receiving audio test signals sent by built-in speakers of different parts in the vehicle at the rear seat of the co-driver's seat, so as to transmit the audio test signals to the processor chip for tuning processing.
In order to enable users at other locations in the vehicle to obtain high-quality sound effects as well, the intelligent spectrum processing box can be arranged in the vehicle for mobile use. In some preferred embodiments, the smart spectrum processing box is configured for mobile use in a vehicle, and when the smart spectrum processing box is moved from a driver's seat to a co-driver's seat for use, the built-in microphone is configured to receive audio test signals emitted from vehicle built-in speakers at different locations in the vehicle at the driver's seat for transmission to the processor chip for tuning. In some preferred embodiments, the smart spectrum processing box is configured to be used in a vehicle in a mobile manner, and when the smart spectrum processing box is used from a driving position to a driving position rear seat, the built-in microphone is used for receiving audio test signals sent by vehicle built-in speakers at different positions in the vehicle at the driving position rear seat so as to transmit the audio test signals to the processor chip for tuning processing. In some preferred embodiments, the smart spectrum processing box is configured for mobile use in a vehicle, and when the smart spectrum processing box is moved from a co-driver seat to a co-driver seat back seat for use, the built-in microphone is configured to receive audio test signals emitted by vehicle built-in speakers at different locations in the vehicle at the co-driver seat back seat for transmission to the processor chip for tuning processing.
In some preferred embodiments, the processor chip performs tuning processing on the audio test signal, and includes the following tuning processing steps: analyzing and acquiring frequency response parameters and phase parameters of the audio test signals, and playing and sending the audio test signals from the built-in speaker of the vehicle to time parameters received by the built-in microphone; and comparing the frequency response parameter, the phase parameter and the time parameter with a preset parameter range, and completing tuning when the frequency response parameter, the phase parameter and the time parameter are in the preset parameter range.
It should be noted that, for different positions in the vehicle, different frequency response parameters, phase parameters and time parameters may be set, so as to realize tuning of different positions.
Example two
Referring to fig. 1 to 6, the present application provides a smart tuning-based car audio processing method, which is used in the smart tuning-based car audio processing system described in any one of the above embodiments; the vehicle-mounted audio processing method based on intelligent tuning comprises a step S1 and a step S2.
S1, a processor chip of an intelligent frequency spectrum processing box responds to a tuning request to send a tuning test signal;
s2, the processor chip of the intelligent frequency spectrum processing box receives audio test signals sent by the vehicle built-in speakers at different positions in the vehicle, and performs tuning processing; the audio test signal is transmitted and provided by a built-in microphone of the intelligent frequency spectrum processing box;
the processor chip is in signal connection with the vehicle DSP module, and the vehicle DSP module receives the tuning test signal and generates the audio test signal according to the tuning test signal; the built-in speaker of the vehicle is arranged at different positions in the vehicle, is connected with the DSP module of the vehicle in a signal manner, and is used for receiving the audio test signal and playing and sending the audio test signal.
In this embodiment, since the vehicle audio processing method based on intelligent tuning is used in any of the above vehicle audio processing systems based on intelligent tuning, the vehicle audio processing system based on intelligent tuning includes an intelligent spectrum processing box, a vehicle DSP module, and a vehicle built-in speaker. The intelligent frequency spectrum processing box is provided with an internal microphone and a processor chip, the internal microphone is in signal connection with the processor chip and is used for receiving audio test signals sent by the internal speakers of different positions in the vehicle, and the audio test signals are transmitted to the processor chip for tuning, the processor chip responds to a tuning request to send tuning test signals, the DSP module of the vehicle is in signal connection with the processor chip and receives the tuning test signals, and generates audio test signals according to the tuning test signals, the internal speakers of the vehicle are arranged at different positions in the vehicle and are in signal connection with the DSP module of the vehicle and are used for receiving the audio test signals and sending out the audio test signals, so that the automatic tuning can be realized, the audio defect is processed, manual tuning by a tuning operator is not needed, the use of personnel in the vehicle is facilitated, and the driving safety is improved.
Example III
Referring to fig. 1-5, any of the above-described smart tuning-based car audio processing systems may further include a smart switch and an external microphone. The intelligent switch is arranged at the signal input end of the vehicle DSP module and used for detecting audio signals, when the audio signals are detected to be music signals, the music signals are transmitted to the vehicle DSP module, the external microphone is arranged in the vehicle and used for detecting voice signals sent by persons in the vehicle, the detected voice signals are transmitted to the vehicle DSP module through the intelligent frequency spectrum processing box, the vehicle DSP module is connected with the intelligent switch signal, the vehicle DSP module receives the music signals and receives the voice signals provided by the external microphone, the music signals and the voice signals are subjected to mixing processing to obtain singing signals, and the vehicle built-in loudspeaker is connected with the vehicle DSP module through signals and used for receiving the singing signals to play sounds.
In the prior art, the microphone of the on-board singing system is usually built in the dashboard in front of the automobile to ensure that the microphone can capture the sounds of the driver and the front passengers. When the driver and the front passenger want to sing, the touch screen of the vehicle is operated to control the built-in microphone to start, music signals are selected from the vehicle system, and then a singing control is selected, so that the vehicle-mounted singing system is started. The microphone is built-in on the instrument board in car front portion, sings and needs driver or front passenger to operate the touch-sensitive screen, and inconvenient back seat passenger uses, simultaneously, if the driver is operating in-process of driving, still can cause the potential safety hazard of certain degree. In addition, the built-in microphone is generally limited by the internal structure and materials of the vehicle, the signal capturing range is limited to a certain extent, and if the microphone fails, the maintenance and the nursing are inconvenient.
It should be noted that, when the external microphone transmits the voice signal sent by the personnel in the vehicle through the intelligent spectrum processing box, the internal microphone of the intelligent spectrum processing box can be utilized as a relay for transmission.
It should be noted that, the intelligent switch is disposed at the signal input end of the vehicle DSP module, so as to detect and judge the music signal before the audio signal is amplified and processed, thereby realizing more accurate judgment.
In this embodiment, the external microphone is equipped for mobile use in the vehicle, and the signal capturing range is enlarged, thereby facilitating use by persons in all positions in the vehicle. Meanwhile, the external microphone is convenient to maintain and replace, is independent of the vehicle-mounted system, can automatically wake up according to voice instructions, and does not need to rely on a touch screen of the vehicle-mounted system to operate and wake up. In addition, the intelligent switch automatically detects music signals, controls the built-in speaker of the vehicle to play singing signals in cooperation with the DSP module of the vehicle, reduces frequent operation of a touch screen of the vehicle machine system by a user, and improves driving safety.
In some preferred embodiments, the intelligent switch is in signal connection with a vehicle system of the vehicle, detects an analog audio signal provided by the vehicle system when the vehicle system is started, and transmits the analog music signal to the vehicle DSP module when the analog audio signal is detected to be an analog music signal. Further, the intelligent switch is in signal connection with the wireless communication module, detects a digital audio signal provided by the wireless communication module, and transmits the digital music signal to the vehicle DSP module when detecting that the digital audio signal provided by the wireless communication module is a digital music signal. Further, the wireless communication module is an external Bluetooth module or an external optical fiber module, and the external Bluetooth module or the external optical fiber module is used for signal connection with an audio player so as to acquire the digital music signal.
It should be noted that, the intelligent switch may detect an analog music signal, or may detect a digital music signal, where the analog music signal is provided by a car system, and the digital music signal is provided by an audio player, for example, the digital music signal may be provided by an audio player such as a mobile phone, a walkman, etc., so as to adapt to different signal sources and implement multi-scenario application. In addition, compared with an analog audio signal, a digital music signal has higher sound quality, and can meet users with high requirements on the sound quality.
In some preferred embodiments, the intelligent switch performs the steps of: receiving an audio signal through an audio signal detection interface; and comparing the received audio signal with a preset music signal judgment condition, and judging that the detected audio signal is a music signal when the received audio signal is matched with the preset music signal judgment condition. The preset music signal judging condition can be set according to a specific frequency range and/or an amplitude threshold value of the music signal. Further, when the received audio signal is not matched with the preset music signal judging condition, the intelligent switch judges that the detected audio signal is a language broadcasting signal, the language broadcasting signal is transmitted to the vehicle DSP module, and when the language broadcasting signal is received by the vehicle DSP module, preset prompt content is transmitted to a built-in speaker of the vehicle to sound and play so as to prompt a user that the music signal is not found.
The language broadcasting signal refers to a signal other than a music signal, for example, an advertisement signal, a news report signal, and the like. In this embodiment, by determining that the detected audio signal is a language broadcasting signal, the language broadcasting signal is transmitted to the vehicle DSP module, and when the vehicle DSP module receives the language broadcasting signal, a preset prompting content is transmitted to a built-in speaker of the vehicle to sound and play, so as to prompt the user that no music signal is found, thereby helping the user make play selection.
In some preferred embodiments, when the intelligent switch determines that the detected audio signal is a music signal, a noise cancellation signal is sent to the vehicle DSP module, and the vehicle DSP module performs background noise cancellation on the music signal after receiving the noise cancellation signal. Further, the vehicle DSP module performs background noise cancellation on the music signal through an adaptive noise reduction algorithm.
It should be noted that, in the present embodiment, when the intelligent switch determines that the detected audio signal is a music signal, a noise cancellation signal is sent to the vehicle DSP module, and the vehicle DSP module performs background noise cancellation on the music signal after receiving the noise cancellation signal, thereby improving the tone quality state during singing.
In some preferred embodiments, the adaptive noise reduction algorithm comprises:
let the input signal of the filter in the vehicle DSP module be x (n), filterThe weight vector of the filter is w (n), the desired music signal is d (n), the update step of the algorithm is μ, and the output of the filter is y (n) =w T (n) ·x (n), wherein w T (n) represents a transpose of the weight vector;
calculating an error signal e (n), e (n) =d (n) -y (n) according to a minimum mean square error criterion;
updating weight vectors of the filter: w (n+1) =w (n) +μ·e (n) ·x (n); μ is a step size parameter of the algorithm, and controls the updating speed and convergence of the weight;
the weight vector of the filter is continuously and iteratively updated, so that the self-adaptive noise reduction algorithm is gradually adapted to the noise environment, and the influence of the background noise on the music signal is reduced.
In the present embodiment, the background noise is removed from the music signal by using the adaptive noise reduction algorithm, and the input signal x (n) is transposed with the weight vector of the filter T And (n) multiplying to obtain the output y (n) of the filter, comparing with the expected music signal d (n) to obtain an error signal e (n), and continuously adjusting the value of the weight vector w (n) to finally realize the reduction of the background noise.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (10)
1. An intelligent tuning-based car audio processing system, comprising:
the intelligent frequency spectrum processing box is provided with a built-in microphone and a processor chip; the built-in microphone is in signal connection with the processor chip and is used for receiving audio test signals sent by the built-in speakers of different parts in the vehicle to transmit to the processor chip for tuning; the processor chip responds to the tuning request and sends out a tuning test signal;
the vehicle DSP module is in signal connection with the processor chip, receives the tuning test signal and generates the audio test signal according to the tuning test signal;
and the vehicle built-in loudspeaker is built in different parts in the vehicle, is connected with the vehicle DSP module through signals, and is used for receiving the audio test signal and playing and sending the audio test signal.
2. The intelligent tuning-based car audio processing system according to claim 1, wherein the intelligent spectrum processing box is provided for use in a driver's seat, and the built-in microphone is used for receiving audio test signals emitted by built-in speakers of a vehicle at different positions in the vehicle at the driver's seat, and transmitting the audio test signals to the processor chip for tuning processing.
3. The intelligent tuning-based car audio processing system of claim 1, wherein the intelligent spectrum processing box is provided for use at a co-driver's seat, and the built-in microphone is configured to receive audio test signals emitted from vehicle built-in speakers at different locations in the vehicle at the co-driver's seat for transmission to the processor chip for tuning processing.
4. The intelligent tuning-based car audio processing system according to claim 1, wherein the intelligent spectrum processing box is provided for use in a driver's seat back, and the built-in microphone is configured to receive audio test signals emitted by a speaker built in the vehicle at different locations in the vehicle at the driver's seat back, and to transmit the audio test signals to the processor chip for tuning processing.
5. The intelligent tuning-based car audio processing system of claim 1, wherein the intelligent spectrum processing box is provided for use in a passenger seat back seat, and the built-in microphone is configured to receive audio test signals emitted by vehicle built-in speakers at different locations in the vehicle at the passenger seat back seat for transmission to the processor chip for tuning processing.
6. The intelligent tuning-based car audio processing system of claim 1, wherein the intelligent spectrum processing box is configured for mobile use in a vehicle, and the built-in microphone is configured to receive audio test signals from a speaker built into the vehicle at different locations in the vehicle at the driver's seat for transmission to the processor chip for tuning processing when the intelligent spectrum processing box is moved from the driver's seat to the co-driver's seat for use.
7. The intelligent tuning-based car audio processing system of claim 1, wherein the intelligent spectrum processing box is configured for mobile use in a vehicle, and the built-in microphone is configured to receive audio test signals emitted from vehicle built-in speakers at different locations in the vehicle at the driver's seat back for transmission to the processor chip for tuning processing when the intelligent spectrum processing box is moved from the driver's seat back for use.
8. The intelligent tuning-based car audio processing system of claim 1, wherein the intelligent spectrum processing box is configured for mobile use in a vehicle, and the built-in microphone is configured to receive audio test signals emitted from vehicle built-in speakers at different locations in the vehicle at the co-driver's seat back for transmission to the processor chip for tuning when the intelligent spectrum processing box is moved from the co-driver's seat back for use.
9. The intelligent tuning-based car audio processing system of any one of claims 1-8, wherein the processor chip performs tuning processing on the audio test signal, comprising the following tuning processing steps:
analyzing and acquiring frequency response parameters and phase parameters of the audio test signals, and playing and sending the audio test signals from the built-in speaker of the vehicle to time parameters received by the built-in microphone;
and comparing the frequency response parameter, the phase parameter and the time parameter with a preset parameter range, and completing tuning when the frequency response parameter, the phase parameter and the time parameter are in the preset parameter range.
10. A car audio processing method based on intelligent tuning, wherein the car audio processing method based on intelligent tuning is used for the car audio processing system based on intelligent tuning as claimed in any one of claims 1 to 9; the vehicle-mounted audio processing method based on intelligent tuning comprises the following steps:
the processor chip of the intelligent frequency spectrum processing box responds to the tuning request to send out a tuning test signal;
the processor chip of the intelligent frequency spectrum processing box receives audio test signals sent by the vehicle built-in speakers at different positions in the vehicle, and performs tuning processing; the audio test signal is transmitted and provided by a built-in microphone of the intelligent frequency spectrum processing box;
the processor chip is in signal connection with the vehicle DSP module, and the vehicle DSP module receives the tuning test signal and generates the audio test signal according to the tuning test signal; the built-in speaker of the vehicle is arranged at different positions in the vehicle, is connected with the DSP module of the vehicle in a signal manner, and is used for receiving the audio test signal and playing and sending the audio test signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311071811.6A CN116996811A (en) | 2023-08-24 | 2023-08-24 | Vehicle-mounted audio processing system and method based on intelligent tuning |
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| CN202311071811.6A CN116996811A (en) | 2023-08-24 | 2023-08-24 | Vehicle-mounted audio processing system and method based on intelligent tuning |
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| CN202311071811.6A Pending CN116996811A (en) | 2023-08-24 | 2023-08-24 | Vehicle-mounted audio processing system and method based on intelligent tuning |
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