CN113724717A - Vehicle-mounted audio processing system and method, vehicle-mounted controller and vehicle - Google Patents
Vehicle-mounted audio processing system and method, vehicle-mounted controller and vehicle Download PDFInfo
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- CN113724717A CN113724717A CN202010435017.5A CN202010435017A CN113724717A CN 113724717 A CN113724717 A CN 113724717A CN 202010435017 A CN202010435017 A CN 202010435017A CN 113724717 A CN113724717 A CN 113724717A
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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
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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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
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
Abstract
The embodiment of the invention provides a vehicle-mounted audio processing system, a vehicle-mounted audio processing method, a vehicle controller and a vehicle, wherein the vehicle-mounted audio processing system comprises a first multiplexing chip, a compiling chip and a plurality of control chips; the first multiplexing chip is electrically connected with the plurality of control chips respectively, the editing and decoding chip is electrically connected with the plurality of control chips respectively, and the first multiplexing chip is electrically connected with the editing and decoding chip; the first multiplexing chip is used for receiving the control instructions sent by the plurality of control chips and sending configuration information to the codec chip according to the control instructions; and the codec chip is used for carrying out audio processing on the audio data according to the configuration information to generate audio output data. The first multiplexing chip can receive the instruction of the control chip and send the configuration information to the coding and decoding chip, so that the control data of the coding chip is shunted, the load of the control chip is reduced, and the efficiency of audio processing and the system stability are improved.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a vehicle-mounted audio processing system and method, a vehicle controller and a vehicle.
Background
The vehicle-mounted audio processing system is used as an important component of the vehicle-mounted controller and the vehicle-mounted entertainment system, has basic audio functions of alarm prompt tone, radio, CD playing and the like, can realize functions of connecting a portable music player and connecting the portable music player to a mobile phone by using Bluetooth for multimedia playing, language navigation, hands-free conversation and the like, and greatly enriches the use scenes of the vehicle-mounted entertainment system. Meanwhile, with the increasing abundance of functions of the vehicle-mounted audio processing system, more and more chips are needed by the vehicle-mounted audio processing system to realize various functions.
In the prior art, a vehicle-mounted audio processing system is provided with a main audio chip; when the audio data is processed, the audio data is processed by data transmission and command control through a main audio chip connected with an audio Codec (Codec).
However, in the prior art, the number of data and instructions to be processed by the main audio chip is very large, and thus the load of the main audio chip becomes large, which further causes the problems of low audio processing efficiency and influences the stability of the audio processing system.
Disclosure of Invention
The invention provides a vehicle-mounted audio processing system and method, a vehicle-mounted controller and a vehicle, which are used for solving the problems that the audio processing efficiency is low and the stability of an audio processing system is influenced.
According to a first aspect of embodiments of the present disclosure, the present invention provides an in-vehicle audio processing system, including:
the device comprises a first multiplexing chip, a coding and decoding chip and a plurality of control chips;
the first multiplexing chip is electrically connected with the plurality of control chips respectively, the codec chip is electrically connected with the plurality of control chips respectively, and the first multiplexing chip is electrically connected with the codec chip;
the first multiplexing chip is used for receiving the control instructions sent by the plurality of control chips and sending configuration information to the codec chip according to the control instructions;
and the codec chip is used for receiving the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and carrying out audio processing on the audio data according to the configuration information to generate audio output data.
Optionally, the codec chip is a multi-channel input codec chip, the multi-channel input codec chip has a plurality of data input ends, the data input ends are in one-to-one correspondence with the control chips, and the data input ends are electrically connected with the corresponding control chips;
the multi-input coding and decoding chip is used for:
receiving the configuration information;
determining a target chip in the plurality of control chips according to the configuration information;
and receiving the audio data sent by the target chip and processing the audio data.
Optionally, the codec chip includes a second multiplexing chip and a single-input codec chip, and a data output end of the second multiplexing chip is electrically connected to the single-input codec chip; the second multiplexing chip is provided with a plurality of data input ends, the data input ends are in one-to-one correspondence with the control chips, and the data input ends are electrically connected with the corresponding control chips; the configuration information comprises first sub-configuration information and second sub-configuration information;
the second multiplexing chip is configured to:
receiving first sub-configuration information sent by the first multiplexing chip, and determining a target chip in the plurality of control chips according to the first sub-configuration information;
receiving the audio data sent by the target chip, and sending the audio data to the coding and decoding chip with the single-channel input;
the single-path input coding and decoding chip is used for:
and receiving second sub-configuration information sent by the first multiplexing chip, and carrying out audio processing on the audio data according to the second sub-configuration information to generate audio output data.
Optionally, the plurality of control chips include a main control chip;
the main control chip is used for sending audio data to the codec chip according to a first starting instruction and sending a first switching instruction to the first multiplexing chip;
the first multiplexing chip is specifically configured to send configuration information to the codec chip according to the first switching instruction;
the codec chip is specifically configured to perform audio processing on the audio data sent by the main control chip according to the configuration information, and generate audio output data.
Optionally, the plurality of control chips further include one or more functional chips, and the functional chips are electrically connected with the main control chip;
the functional chip is used for sending audio data to the codec chip according to a second starting instruction and sending a switching request to the main control chip;
the main control module is specifically configured to send a second switching instruction to the first multiplexing module according to the switching request;
the first multiplexing chip is specifically configured to send configuration information to the codec chip according to the second switching instruction;
the codec chip is specifically configured to perform audio processing on the audio data sent by the functional chip according to the configuration information, and generate audio output data.
According to a second aspect of the embodiments of the present disclosure, the present invention provides a vehicle audio method applied to an audio processing system, where the audio processing system includes a first multiplexing chip, a codec chip, and a plurality of control chips, and the method includes:
the first multiplexing chip receives control instructions sent by the control chips and sends configuration information to the codec chip according to the control instructions;
and the codec chip receives the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and carries out audio processing on the audio data according to the configuration information to generate audio output data.
Optionally, the codec chip is a multi-channel input codec chip, and the codec chip receives the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and performs audio processing on the audio data according to the configuration information to generate audio output data, including:
the code decoding chip with the multipath input receives the configuration information;
and the multi-path input coding and decoding chip determines a target chip in the plurality of control chips according to the configuration information.
Optionally, the codec chip includes a second multiplexing chip and a single-channel input codec chip, where the configuration information includes first sub-configuration information and second sub-configuration information, and the codec chip receives the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and performs audio processing on the audio data according to the configuration information to generate audio output data, including:
the second multiplexing chip receives first sub-configuration information sent by the first multiplexing chip and determines a target chip in the plurality of control chips according to the first sub-configuration information;
the second multiplexing chip receives the audio data sent by the target chip and sends the audio data to the coding and decoding chip with single-channel input;
and the coding and decoding chip with single input receives the second sub-configuration information sent by the first multiplexing chip, and carries out audio processing on the audio data according to the second sub-configuration information to generate audio output data.
Optionally, the multiple control chips include a main control chip, the first multiplexing chip receives the control instructions sent by the multiple control chips, and sends configuration information to the codec chip according to the control instructions, including:
the main control chip sends audio data to the codec chip according to a first starting instruction, and sends a first switching instruction to the first multiplexing chip;
the first multiplexing chip sends configuration information to the codec chip according to the first switching instruction;
the codec chip performs audio processing on the audio data according to the configuration information to generate audio output data, including:
and the codec chip performs audio processing on the audio data sent by the main control chip according to the configuration information to generate audio output data.
Optionally, the plurality of control chips further includes one or more functional chips, the first multiplexing chip receives the control instruction sent by the plurality of control chips, and sends configuration information to the codec chip according to the control instruction, and the method further includes:
the functional chip sends audio data to the codec chip according to a second starting instruction and sends a switching request to the main control chip;
the main control module sends a second switching instruction to the first multiplexing module according to the switching request;
the first multiplexing chip sends configuration information to the codec chip according to the second switching instruction;
the codec chip performs audio processing on the audio data according to the configuration information to generate audio output data, including:
and the codec chip performs audio processing on the audio data sent by the functional chip according to the configuration information to generate audio output data.
According to a third aspect of the disclosed embodiments, the present invention provides a vehicle controller, including: an input unit, an output unit, and the in-vehicle audio processing system according to any one of the first aspect of the embodiments of the present disclosure;
the input unit is electrically connected with one or more control chips of the vehicle-mounted audio processing system; the output unit is electrically connected with a compiling and decoding chip of the vehicle-mounted audio processing system;
the input unit is used for inputting a starting instruction to the one or more control chips;
and the output unit is used for outputting the audio output data generated by the codec chip.
According to a fourth aspect of the embodiments of the present disclosure, the present disclosure provides a vehicle, where the vehicle-mounted machine controller according to the third aspect of the embodiments of the present disclosure is disposed on the vehicle.
The invention provides a vehicle-mounted audio processing system, a vehicle-mounted audio processing method, a vehicle controller and a vehicle, wherein the vehicle-mounted audio processing system comprises a first multiplexing chip, a compiling and decoding chip and a plurality of control chips; the first multiplexing chip is electrically connected with the plurality of control chips respectively, the codec chip is electrically connected with the plurality of control chips respectively, and the first multiplexing chip is electrically connected with the codec chip; the first multiplexing chip is used for receiving the control instructions sent by the plurality of control chips and sending configuration information to the codec chip according to the control instructions; and the codec chip is used for receiving the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and carrying out audio processing on the audio data according to the configuration information to generate audio output data. The first multiplexing chip can receive the instruction of the control chip and send the configuration information to the coding and decoding chip, so that the control data of the coding chip is shunted, the load of the control chip is reduced, and the efficiency and the system stability of the vehicle-mounted audio processing system for processing the audio data are improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a system architecture diagram of a car audio processing system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an in-vehicle audio processing system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an in-vehicle audio processing system according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of an in-vehicle audio processing system according to yet another embodiment of the present invention;
fig. 5 is a flowchart of a car audio processing method according to an embodiment of the present invention;
fig. 6 is a flowchart of a car audio processing method according to another embodiment of the present invention;
fig. 7 is a flowchart of a car audio processing method according to another embodiment of the present invention;
fig. 8 is a flowchart of a car audio processing method according to still another embodiment of the present invention;
fig. 9 is a flowchart of a car audio processing method according to still another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a car machine controller according to an embodiment of the present invention.
Reference numerals:
1. a first multiplexing chip;
2. compiling a chip; 21. a coding and decoding chip with multi-path input; 22. a second multiplexing chip; 23. a coding and decoding chip with single input;
3. a control chip; 31. a main control chip; 32. a functional chip;
4. an input unit;
5. and an output unit.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a system architecture diagram of a vehicle-mounted audio processing system according to an embodiment of the present invention, and as shown in fig. 1, the vehicle-mounted audio processing system includes a main control chip, a functional chip, and a codec chip, where the main control chip is electrically connected to the codec chip, and the functional chip is electrically connected to the main control chip. The codec chip is used for coding and decoding the audio, so that the audio data can be normally played; the main control chip is used for controlling the codec chip and transmitting audio data to realize basic vehicle audio functions, such as vehicle greeting music, vehicle alarm prompt tones and the like, and the functional chip provides high-grade audio functions such as high-quality CD playing, music sound effect, sound field mixing or rendering and the like by accessing the main control chip.
In the prior art, because the main control chip is directly connected with the codec chip, under normal conditions, the vehicle-mounted audio processing system can realize low-delay and quick response to audio data such as vehicle alarm prompt tones, however, along with the work of the functional chip, a large amount of audio data and control data need to be transmitted to the main control chip first, and after being processed and coordinated by the main control chip, the audio data and the control data are sent to the codec chip for audio processing, thereby occupying a large amount of communication bandwidth and processing resources of the main control chip. Therefore, the main control chip undertakes the work of controlling and processing a large amount of audio data, so that the stability of the vehicle-mounted audio processing system is influenced, the transmission of other important audio data such as alarm prompt tones is influenced, and potential safety hazards are formed.
The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 2 is a schematic structural diagram of a car audio processing system according to an embodiment of the present invention, and as shown in fig. 2, the car audio processing system according to the embodiment includes:
a first multiplexing chip 1, a codec chip 2, and a plurality of control chips 3.
The first multiplexing chip 1 is electrically connected with the plurality of control chips 3, the compiling and decoding chip 2 is electrically connected with the plurality of control chips 3, and the first multiplexing chip 1 is electrically connected with the compiling and decoding chip 2. Optionally, the first multiplexing chip 1 performs control information transmission with the plurality of control chips 3, respectively, and the codec chip 2 performs audio data transmission with the plurality of control chips 3, respectively; and control information transmission is carried out between the first multiplexing chip 1 and the coding and decoding chip 2.
Alternatively, the first multiplexing chip 1, the codec chip 2, and the plurality of control chips 3 may be disposed on the same circuit board, and connected and data communicated through a bus. The first multiplexing chip 1, the codec chip 2, and the plurality of control chips 3 may also be disposed on different circuit boards, and connected to each other through data lines, thereby implementing data communication.
The first multiplexing chip 1 is configured to receive control instructions sent by the plurality of control chips 3, and send configuration information to the codec chip 2 according to the control instructions.
The first multiplexing chip 1 has one or more input ports, the plurality of control chips 3 can be connected to the first multiplexing chip 1 through the one or more input ports, and the first multiplexing chip 1 receives a control instruction sent by at least one control chip 3 of the plurality of control chips 3 and sends configuration information for determining audio data to the codec chip 2 according to the control instruction.
And the codec chip 2 is used for receiving the audio data sent by the control chip 3 and the configuration information sent by the first multiplexing chip 1, and performing audio processing on the audio data according to the configuration information to generate audio output data.
The Codec chip 2 includes Codec, which refers to a Codec device having a function of compressing and decompressing audio. The codec encodes and compresses the transmission of the audio digital signal, and decodes the signal at the receiving end. The codec chip 2 in this embodiment can implement decoding processing on the audio signal, thereby generating an audio signal that can be played by the output unit. The codec chip 2 has a plurality of audio input terminals, which are respectively connected to the plurality of control chips 3 in a one-to-one correspondence manner, and is configured to receive audio data sent by the plurality of control chips 3, and determine one of the audio data to perform audio decoding processing according to the configuration information sent by the first multiplexing chip 1.
For example, the plurality of control chips include a control chip a01, a control chip a02, and a control chip a03, and the control chip a01, the control chip a02, and the control chip a03 are all capable of sending audio data to the codec chip; the codec chip receives the configuration information sent by the first multiplexing chip, where the configuration information includes a target identifier, such as the control chip a01, and therefore, according to the configuration information, the codec chip receives the audio data sent by the control chip a01 and performs audio decoding processing on the audio data.
Alternatively, the codec chip 2 may be a dedicated audio decoding chip or a general-purpose chip capable of implementing codec functions, and is not limited in this respect.
In this embodiment, the vehicle-mounted audio processing system includes a first multiplexing chip 1, a codec chip 2, and a plurality of control chips 3; the first multiplexing chip 1 is respectively and electrically connected with the plurality of control chips 3, the compiling and decoding chip 2 is respectively and electrically connected with the plurality of control chips 3, and the first multiplexing chip 1 is electrically connected with the compiling and decoding chip 2; the first multiplexing chip 1 is used for receiving control instructions sent by the plurality of control chips 3 and sending configuration information to the codec chip 2 according to the control instructions; and the codec chip 2 is used for receiving the audio data sent by the control chip 3 and the configuration information sent by the first multiplexing chip 1, and performing audio processing on the audio data according to the configuration information to generate audio output data. Because the first multiplexing chip 1 can receive the instruction of the control chip 3 and send the configuration information to the codec chip 2, the shunting of the control data of the coding chip is realized, the load of the control chip 3 is reduced, and the efficiency and the system stability of the vehicle-mounted audio processing system for processing the audio data are improved.
Fig. 3 is a schematic structural diagram of a vehicle-mounted audio processing system according to another embodiment of the present invention, and as shown in fig. 3, the vehicle-mounted audio processing system according to this embodiment further refines the codec chip 2 on the basis of the vehicle-mounted audio processing system according to the embodiment shown in fig. 2, in the vehicle-mounted audio processing system according to this embodiment, the codec chip 2 is a multiple-input codec chip 21, the multiple-input codec chip 21 has a plurality of data input terminals, the data input terminals are in one-to-one correspondence with the control chips 3, and the data input terminals are electrically connected with the corresponding control chips 3.
Optionally, the plurality of control chips 3 include a main control chip 31, the main control chip 31 may be a microprocessor chip in the in-vehicle controller, the main control chip 31 is faster than other chips in starting speed, and can detect the state of the system, thereby implementing a function of, for example, determining whether to output audio data such as vehicle alarm and vehicle welcome.
The main control chip 31 sends the audio data to the multi-channel input coding and decoding chip 21 according to the first start instruction, and sends a first switching instruction to the first multiplexing chip 1. The first start instruction may be a vehicle start instruction or a vehicle controller start instruction, and after the main control chip 31 receives the first start instruction, the vehicle welcome audio data for prompting the user that the vehicle has been started is sent to the multi-channel input encoding and decoding chip 21. The main control chip 31 further sends a first switching instruction to the first multiplexing chip 1, so as to obtain the control right of the multi-input coding and decoding chip 21 through the first multiplexing chip 1.
After receiving the first switching instruction, the first multiplexing chip 1 sends configuration information to the multi-channel input codec chip 21 according to the first switching instruction, and optionally, the configuration information may include a target identifier having a mapping relationship with the main control chip 31. The multi-channel input coding and decoding chip 21 determines a corresponding target chip, namely the main control chip 31, according to the target identifier, and performs audio processing on the audio data sent by the main control chip 31 to generate audio output data.
Optionally, the plurality of control chips 3 further include one or more functional chips 32, and the functional chips 32 are electrically connected to the main control chip 31. The functional chip 32 implements some specific audio functions, such as an audio chip for mixing and rendering audio sound fields, a chip for playing high-quality music, and the like. The main control chip 31 and the functional chip 32 exchange data and instructions through a specific data protocol, and the specific connection mode and communication mode between the main control chip 31 and the functional chip 32 are not specifically limited herein and may be set according to specific needs.
The functional chip 32 sends audio data to the codec chip 2 according to the second start instruction, and sends a switching request to the main control chip 31; the second start instruction is a start instruction when the function chip 32 executes a corresponding function, for example, an instruction to mix and render an audio sound field, and a chip instruction to play high-quality music. The main control module receives a switching request sent by the functional chip 32, and the first multiplexing module sends a second switching instruction; and the first multiplexing chip 1 sends configuration information to the codec chip 2 according to the second switching instruction. The configuration information corresponding to the second switching command enables the functional chip 32 to obtain the control right of the multi-channel input codec chip 21.
The multi-channel input coding and decoding chip 21 performs audio processing on the audio data sent by the functional chip 32 according to the configuration information to generate audio output data. The process of audio processing performed by the multi-channel input codec chip 21 on the audio data sent by the functional chip 32 is the same as the process of audio processing performed by the multi-channel input codec chip 21 on the audio data sent by the main control chip 31, and is not described herein again.
In order to better disclose the working process of the car audio processing system provided by the embodiment, two more specific embodiments are described below.
The first embodiment is as follows:
after the vehicle is started, the main control chip A01 receives a first starting instruction, checks whether the multi-path input coding and decoding chip is in an idle state, if the multi-path input coding and decoding chip is in the idle state, the main control chip A01 sends a first switching instruction to the first multiplexing chip according to the first starting instruction, the first multiplexing chip sends configuration information to the multi-path input coding and decoding chip after receiving the first switching instruction, and the multi-path input coding and decoding chip enables the main control chip A01 to obtain a control right according to the configuration information, accesses the vehicle welcome audio data sent by the main control chip A01 and decodes the vehicle welcome audio data. After the multi-channel input coding and decoding chip finishes the processing of the vehicle welcome audio data, the state is changed into an idle state.
Example two:
the function chip a02 responds to the second start instruction to execute the high-quality multimedia audio playing function, the function chip a02 obtains the state of the multi-channel input coding and decoding chip through the main control chip a01, if the multi-channel input coding and decoding chip is in an idle state, the function chip a02 sends a switching request to the main control chip a01, the main control chip a01 sends a second switching instruction to the first multiplexing chip according to the switching request, after the first multiplexing chip receives the second switching instruction, the function chip a02 obtains the control right of the multi-channel input coding and decoding chip through configuration information, and the multi-channel input coding and decoding chip receives the high-quality multimedia audio data sent by the function chip a02 and decodes the high-quality multimedia audio data.
It should be noted that the working processes of the vehicle-mounted audio processing systems corresponding to the first embodiment and the second embodiment may be executed sequentially or individually, and are not specifically limited herein.
Fig. 4 is a schematic structural diagram of a vehicle-mounted audio processing system according to still another embodiment of the present invention, and as shown in fig. 4, the vehicle-mounted audio processing system according to this embodiment further refines the codec chip 2 on the basis of the vehicle-mounted audio processing system according to the embodiment shown in fig. 2, in the vehicle-mounted audio processing system according to this embodiment, the codec chip 2 includes a second multiplexing chip 22 and a single-input codec chip 23, and a data output end of the second multiplexing chip 22 is electrically connected to the single-input codec chip 23; the second multiplexing chip 22 has a plurality of data input ends, the data input ends correspond to the control chips 3 one by one, and the data input ends are electrically connected with the corresponding control chips 3; the configuration information includes first sub-configuration information and second sub-configuration information.
The second multiplexing chip 22 receives the first sub-configuration information sent by the first multiplexing chip 1, and determines a target chip in the plurality of control chips 3 according to the first sub-configuration information; the target chip may be the main control chip 31 or the functional chip 32, and the first sub-configuration information may be a target identifier having a mapping relationship with the main control chip 31 or the functional chip 32.
The second multiplexing chip 22 receives the audio data sent by the target chip through a data input terminal connected to the target chip among the plurality of data input terminals, and sends the audio data to the encoding and decoding chip 23 with one-way input.
The single-channel input coding and decoding chip 23 receives the second sub-configuration information sent by the first multiplexing chip 1, and performs audio processing on the audio data according to the second sub-configuration information to generate audio output data. Wherein the second sub-configuration information is control information, for example, a control command, and the single-input codec chip 23 may perform a processing procedure on the audio data in response to the second sub-configuration information. The process of processing the audio data by the single-channel input codec chip 23 is similar to the process of processing the audio data by the multi-channel input codec chip 21 in the embodiment shown in fig. 3, and is not described here again.
In order to better disclose the working process of the car audio processing system provided by the embodiment, two more specific embodiments are described below.
Example three:
after the vehicle is started, the main control chip A01 receives a first starting instruction, checks whether the coding and decoding chip input by the single way is in an idle state, if the coding and decoding chip input by the single way is in the idle state, the main control chip A01 sends a first switching instruction to the first multiplexing chip according to the first starting instruction, and after the first multiplexing chip receives the first switching instruction, the first multiplexing chip respectively sends first sub-configuration information to the second multiplexing chip and sends second sub-configuration information to the coding and decoding chip input by the single way. The second multiplexing chip accesses the vehicle welcome audio data sent by the main control chip A01 according to the first sub-configuration information; and the single-path input coding and decoding chip enables the main control chip A01 to obtain the control right according to the second sub configuration information and decodes the vehicle welcome audio data. And after the single-path input coding and decoding chip finishes the processing of the vehicle welcome audio data, the state is changed into an idle state.
Example four:
the function chip a02 responds to the second start instruction to execute the high-quality multimedia audio playing function, the function chip a02 obtains the state of the single-input coding and decoding chip through the main control chip a01, if the single-input coding and decoding chip is in an idle state, the function chip a02 sends a switching request to the main control chip a01, the main control chip a01 sends a second switching instruction to the first multiplexing chip according to the switching request, after receiving the second switching instruction, the first multiplexing chip sends first sub-configuration information to the second multiplexing chip respectively, and sends second sub-configuration information to the single-input coding and decoding chip. The second multiplexing chip accesses the high-quality multimedia audio data sent by the functional chip A02 according to the first sub-configuration information; according to the second sub-configuration information, the functional chip a02 obtains the control right of the codec chip with single input, and performs decoding processing on the high-quality multimedia audio data through the codec chip with single input.
Fig. 5 is a flowchart of a vehicle audio processing method according to an embodiment of the present invention, which is applied to the vehicle audio processing system shown in fig. 2, where the audio processing system includes a first multiplexing chip, a codec chip, and a plurality of control chips, as shown in fig. 5, the vehicle audio processing method provided in this embodiment includes the following steps:
step S101, the first multiplexing chip receives control instructions sent by a plurality of control chips and sends configuration information to the codec chip according to the control instructions.
And step S102, the codec chip receives the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and performs audio processing on the audio data according to the configuration information to generate audio output data.
The specific implementation method of each step in the embodiment of the method is the same as the implementation scheme in the vehicle-mounted audio processing system shown in fig. 2, and is not described herein again.
Fig. 6 is a flowchart of a vehicle-mounted audio processing method according to another embodiment of the present invention, which is applied to the vehicle-mounted audio processing system shown in fig. 3, and as shown in fig. 6, the vehicle-mounted audio processing method according to this embodiment further details step S101 and step S102 on the basis of the vehicle-mounted audio processing method shown in fig. 5, where a codec chip is a multi-input codec chip, and a plurality of control chips include a main control chip, and the vehicle-mounted audio processing method according to this embodiment specifically includes:
s201, the main control chip sends audio data to the multi-path input coding and decoding chip according to the first starting instruction, and sends a first switching instruction to the first multiplexing chip.
S202, the first multiplexing chip sends configuration information to the multi-path input coding and decoding chips according to the first switching instruction.
And S203, receiving the configuration information by the multi-path input coding and decoding chip, and determining the main control chip as a target chip according to the configuration information.
And S204, receiving the audio data sent by the main control chip by the multi-path input coding and decoding chip, and carrying out audio processing to generate audio output data.
The specific implementation method of each step in the embodiment of the method is the same as the implementation scheme in the vehicle-mounted audio processing system shown in fig. 3, and is not described herein again.
Fig. 7 is a flowchart of a vehicle-mounted audio processing method according to still another embodiment of the present invention, which is applied to the vehicle-mounted audio processing system shown in fig. 3, and as shown in fig. 7, the vehicle-mounted audio processing method according to this embodiment further details step S101 and step S102 on the basis of the vehicle-mounted audio processing method shown in fig. 5, where a codec chip is a multi-input codec chip, and a plurality of control chips include a main control chip and a function chip, and the vehicle-mounted audio processing method according to this embodiment specifically includes:
and S301, the functional chip sends audio data to the multi-channel input coding and decoding chip according to the second starting instruction and sends a switching request to the main control chip.
S302, the main control module sends a second switching instruction to the first multiplexing module according to the switching request.
And S303, the first multiplexing chip sends configuration information to the multi-path input coding and decoding chips according to the second switching instruction.
S304, the multi-path input coding and decoding chip receives the configuration information and determines the functional chip as the target chip according to the configuration information.
S305, the multi-path input coding and decoding chip receives the audio data sent by the functional chip, performs audio processing and generates audio output data.
The specific implementation method of each step in the embodiment of the method is the same as the implementation scheme in the vehicle-mounted audio processing system shown in fig. 3, and is not described herein again.
Fig. 8 is a flowchart of a vehicle-mounted audio processing method according to still another embodiment of the present invention, which is applied to the vehicle-mounted audio processing system shown in fig. 4, and as shown in fig. 8, the vehicle-mounted audio processing method provided in this embodiment further details step S101 and step S102 on the basis of the vehicle-mounted audio processing method shown in fig. 5, where a codec chip includes a second multiplexing chip and a single-input codec chip, and a plurality of control chips include a main control chip, and the vehicle-mounted audio processing method provided in this embodiment specifically includes:
s401, the main control chip sends audio data to the second multiplexing chip according to the first starting instruction and sends a first switching instruction to the first multiplexing chip.
S402, the first multiplexing chip sends first sub-configuration information to the second multiplexing chip and sends second sub-configuration information to the single-channel input coding and decoding chip respectively according to the first switching instruction.
S403, the second multiplexing chip receives the first sub-configuration information sent by the first multiplexing chip, and determines that the main control chip is the target chip according to the first sub-configuration information.
S404, the second multiplexing chip receives the audio data sent by the main control chip and sends the audio data to the coding and decoding chip with single-channel input.
S405, the single-channel input coding and decoding chip receives the second sub-configuration information sent by the first multiplexing chip, and carries out audio processing on the audio data sent by the second multiplexing chip according to the second sub-configuration information to generate audio output data.
The specific implementation method of each step in the embodiment of the method is the same as the implementation scheme in the vehicle-mounted audio processing system shown in fig. 4, and is not described herein again.
Fig. 9 is a flowchart of a vehicle-mounted audio processing method according to still another embodiment of the present invention, which is applied to the vehicle-mounted audio processing system shown in fig. 4, and as shown in fig. 9, the vehicle-mounted audio processing method according to this embodiment further details step S101 and step S102 on the basis of the vehicle-mounted audio processing method shown in fig. 5, where a codec chip includes a second multiplexing chip and a single-input codec chip, and a plurality of control chips include a main control chip and a function chip, and the vehicle-mounted audio processing method according to this embodiment specifically includes:
and S501, the functional chip sends audio data to the second multiplexing chip according to the second starting instruction and sends a switching request to the main control chip.
S502, the main control module sends a second switching instruction to the first multiplexing module according to the switching request.
S503, the first multiplexing chip sends the first sub-configuration information to the second multiplexing chip and sends the second sub-configuration information to the single-channel input coding and decoding chip respectively according to the second switching instruction.
S504, the second multiplexing chip receives the first sub-configuration information sent by the first multiplexing chip, and determines the functional chip as a target chip according to the first sub-configuration information.
And S505, the second multiplexing chip receives the audio data sent by the functional chip and sends the audio data to the coding and decoding chip with single-channel input.
S506, the single-channel input coding and decoding chip receives the second sub-configuration information sent by the first multiplexing chip, and carries out audio processing on the audio data sent by the second multiplexing chip according to the second sub-configuration information to generate audio output data.
The specific implementation method of each step in the embodiment of the method is the same as the implementation scheme in the vehicle-mounted audio processing system shown in fig. 4, and is not described herein again.
Fig. 10 is a schematic structural diagram of a car machine controller according to an embodiment of the present invention, and as shown in fig. 10, the car machine controller according to the embodiment includes: an input unit, an output unit and a vehicle-mounted audio processing system provided by any one of the embodiments corresponding to fig. 2-4.
The input unit is electrically connected with one or more control chips of the vehicle-mounted audio processing system; the output unit is electrically connected with the codec chip of the vehicle-mounted audio processing system.
And the input unit is used for inputting a starting instruction to one or more control chips.
And the output unit is used for outputting the audio output data generated by the codec chip.
An embodiment of the present invention provides a vehicle, where a vehicle-mounted device controller provided in the embodiment corresponding to fig. 10 is disposed on the vehicle.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (12)
1. An in-vehicle audio processing system, comprising:
the device comprises a first multiplexing chip, a coding and decoding chip and a plurality of control chips;
the first multiplexing chip is electrically connected with the plurality of control chips respectively, the codec chip is electrically connected with the plurality of control chips respectively, and the first multiplexing chip is electrically connected with the codec chip;
the first multiplexing chip is used for receiving the control instructions sent by the plurality of control chips and sending configuration information to the codec chip according to the control instructions;
and the codec chip is used for receiving the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and carrying out audio processing on the audio data according to the configuration information to generate audio output data.
2. The system according to claim 1, wherein the codec chip is a multi-input codec chip having a plurality of data input terminals, the data input terminals are in one-to-one correspondence with the control chips, and the data input terminals are electrically connected with the corresponding control chips;
the multi-input coding and decoding chip is used for:
receiving the configuration information;
determining a target chip in the plurality of control chips according to the configuration information;
and receiving the audio data sent by the target chip and processing the audio data.
3. The system of claim 1, wherein the codec chip comprises a second multiplexing chip and a single-input codec chip, and a data output terminal of the second multiplexing chip is electrically connected to the single-input codec chip; the second multiplexing chip is provided with a plurality of data input ends, the data input ends are in one-to-one correspondence with the control chips, and the data input ends are electrically connected with the corresponding control chips; the configuration information comprises first sub-configuration information and second sub-configuration information;
the second multiplexing chip is configured to:
receiving first sub-configuration information sent by the first multiplexing chip, and determining a target chip in the plurality of control chips according to the first sub-configuration information;
receiving the audio data sent by the target chip, and sending the audio data to the coding and decoding chip with the single-channel input;
the single-path input coding and decoding chip is used for:
and receiving second sub-configuration information sent by the first multiplexing chip, and carrying out audio processing on the audio data according to the second sub-configuration information to generate audio output data.
4. The system according to any one of claims 1-3, wherein the plurality of control chips comprise a master control chip;
the main control chip is used for sending audio data to the codec chip according to a first starting instruction and sending a first switching instruction to the first multiplexing chip;
the first multiplexing chip is specifically configured to send configuration information to the codec chip according to the first switching instruction;
the codec chip is specifically configured to perform audio processing on the audio data sent by the main control chip according to the configuration information, and generate audio output data.
5. The system of claim 4, wherein the plurality of control chips further comprises one or more functional chips, and the functional chips are electrically connected with the main control chip;
the functional chip is used for sending audio data to the codec chip according to a second starting instruction and sending a switching request to the main control chip;
the main control module is specifically configured to send a second switching instruction to the first multiplexing module according to the switching request;
the first multiplexing chip is specifically configured to send configuration information to the codec chip according to the second switching instruction;
the codec chip is specifically configured to perform audio processing on the audio data sent by the functional chip according to the configuration information, and generate audio output data.
6. A vehicle-mounted audio processing method is applied to an audio processing system, the audio processing system comprises a first multiplexing chip, a coding and decoding chip and a plurality of control chips, and the method comprises the following steps:
the first multiplexing chip receives control instructions sent by the control chips and sends configuration information to the codec chip according to the control instructions;
and the codec chip receives the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and carries out audio processing on the audio data according to the configuration information to generate audio output data.
7. The method of claim 6, wherein the codec chip is a multi-input codec chip, and the codec chip receives the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and performs audio processing on the audio data according to the configuration information to generate audio output data, including:
the code decoding chip with the multipath input receives the configuration information;
and the multi-path input coding and decoding chip determines a target chip in the plurality of control chips according to the configuration information.
8. The method of claim 6, wherein the codec chip includes a second multiplexing chip and a single-input codec chip, the configuration information includes a first sub-configuration information and a second sub-configuration information, and the codec chip receives the audio data sent by the control chip and the configuration information sent by the first multiplexing chip, and performs audio processing on the audio data according to the configuration information to generate audio output data, including:
the second multiplexing chip receives first sub-configuration information sent by the first multiplexing chip and determines a target chip in the plurality of control chips according to the first sub-configuration information;
the second multiplexing chip receives the audio data sent by the target chip and sends the audio data to the coding and decoding chip with single-channel input;
and the coding and decoding chip with single input receives the second sub-configuration information sent by the first multiplexing chip, and carries out audio processing on the audio data according to the second sub-configuration information to generate audio output data.
9. The method according to any one of claims 6 to 8, wherein the plurality of control chips includes a main control chip, and the first multiplexing chip receives the control instruction sent by the plurality of control chips and sends the configuration information to the codec chip according to the control instruction, including:
the main control chip sends audio data to the codec chip according to a first starting instruction, and sends a first switching instruction to the first multiplexing chip;
the first multiplexing chip sends configuration information to the codec chip according to the first switching instruction;
the codec chip performs audio processing on the audio data according to the configuration information to generate audio output data, including:
and the codec chip performs audio processing on the audio data sent by the main control chip according to the configuration information to generate audio output data.
10. The method of claim 9, wherein the plurality of control chips further includes one or more functional chips, the first multiplexing chip receives control commands sent by the plurality of control chips and sends configuration information to the codec chip according to the control commands, and further comprising:
the functional chip sends audio data to the codec chip according to a second starting instruction and sends a switching request to the main control chip;
the main control module sends a second switching instruction to the first multiplexing module according to the switching request;
the first multiplexing chip sends configuration information to the codec chip according to the second switching instruction;
the codec chip performs audio processing on the audio data according to the configuration information to generate audio output data, including:
and the codec chip performs audio processing on the audio data sent by the functional chip according to the configuration information to generate audio output data.
11. A car-mounted controller comprising an input unit, an output unit, and the car-mounted audio processing system according to any one of claims 1 to 5;
the input unit is electrically connected with one or more control chips of the vehicle-mounted audio processing system; the output unit is electrically connected with a compiling and decoding chip of the vehicle-mounted audio processing system;
the input unit is used for inputting a starting instruction to the one or more control chips;
and the output unit is used for outputting the audio output data generated by the codec chip.
12. A vehicle, characterized in that the vehicle is provided with the vehicle controller as claimed in claim 11.
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