CN217825224U - Acoustic system and electronic device - Google Patents
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Abstract
The embodiment of the utility model discloses sound system and electronic equipment, sound system includes host system and power amplifier device, and host system includes data processing module and first power amplifier unit, and power amplifier device includes at least one second power amplifier unit. The first audio signal is received and processed by a data processing module and a second audio signal is generated. The loudspeaker corresponding to the first power amplifier unit is driven to play the second audio signal, and the at least one loudspeaker corresponding to the power amplifier unit is driven to play the second audio signal, so that the sound system can meet the use requirements of low distribution and high distribution at the same time, the applicability of the sound system is improved, the structure of the sound system is simplified, and the use cost of the sound system can be reduced.
Description
Technical Field
The utility model relates to an electronic equipment technical field, concretely relates to sound system and electronic equipment.
Background
The sound system brings good hearing experience for users. Taking a vehicle-mounted sound system as an example, with the trend of intelligent development of automobiles, more users are pursuing higher-quality audio-visual experience.
The existing sound system is often set as the differentiation of high-low vehicle allocation types, different configuration vehicles adopt different sound system configurations, or adopt the sound system that low vehicle allocation type and high vehicle allocation type are multiplexed, the former can save the use cost, but the sound system suitability is poor, the latter improves the applicability of the sound system, but the resource waste is serious, and then leads to the use cost to rise.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a sound system and an electronic device, so as to reduce the use cost while improving the applicability of the sound system.
In a first aspect, an embodiment of the present invention provides a sound system, the system includes:
the host system comprises a data processing module and a first power amplifier unit, wherein the data processing module is configured to receive a first audio signal and process the first audio signal to generate a second audio signal; the first power amplifier unit is connected with the data processing module and configured to receive the second audio signal and drive a corresponding loudspeaker to play the second audio signal;
and the power amplifier equipment is connected with the data processing module and comprises at least one second power amplifier unit, and the second power amplifier unit is configured to receive the second audio signal and drive a corresponding loudspeaker to play the second audio signal.
Further, the host system further includes:
a host bus transceiver connected with the data processing module and configured to receive and transmit the second audio signal;
the power amplifier device further includes:
and the power amplifier bus transceiver is connected with the host bus transceiver and is configured to receive the second audio signal and distribute the second audio signal to the corresponding second power amplifier unit.
Furthermore, the number of the channels corresponding to the first power amplifier unit and the second power amplifier unit is the same.
Further, the data processing module comprises at least one sound effect processor, and each sound effect processor is configured to perform corresponding processing operation on the first audio signal according to a predetermined processing parameter to generate a corresponding second audio signal.
Further, the data processing module comprises:
an input processing module configured to receive and process the first audio signal and generate a channel audio signal corresponding to each channel;
a plurality of output processing modules, each output processing module connected with the input processing module, configured to receive and process a corresponding channel audio signal to generate a corresponding second audio signal.
Further, the input processing module comprises a plurality of sound effect processors connected in series, and each sound effect processor is configured to perform corresponding signal processing operation on the audio signal according to preset processing parameters.
Further, the input processing module includes at least one of an input mute, an input booster, an input delay, an input polarity controller, an air attenuation compensator, and an input equalization effector.
Furthermore, the output processing module comprises a plurality of sound effect processors connected in series, the sound effect processor at the starting position is a filter, and the filter is used for filtering the received channel audio signal.
Further, the host system further includes:
a microprocessor configured to send a control signal to the data processing module.
Further, the host system further includes:
a system processing module configured to output the first audio signal.
Further, the host system further includes:
a CAN bus transceiver configured to transmit CAN bus signals in the sound system.
In a second aspect, an embodiment of the present invention provides an electronic device, including:
a sound system as claimed in any one of the above;
and each loudspeaker is connected with the corresponding first power amplification unit or the second power amplification unit and is used for playing the corresponding second audio signal.
The utility model discloses technical scheme receives and handles first audio signal through the data processing module among the host system, and generates the second audio signal who treats the broadcast. And the first power amplifier unit receives the second audio signal and drives the corresponding loudspeaker to play the second audio signal, so that the use requirement of the low-dubbing audio system is met. The second audio signal is received through at least one second power amplifier unit in the power amplifier equipment and the corresponding loudspeaker is driven to play the second audio signal, so that the use requirements of a plurality of loudspeakers in the high-dubbing audio system for playing the audio signal are met, the applicability of the audio system is further improved, the structure is simplified, and the use cost of the audio system can be reduced.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a prior art low-profile audio system;
FIG. 2 is a schematic diagram of a prior art high-profile audio system;
fig. 3 is a schematic diagram of an audio sound system according to an embodiment of the present invention;
fig. 4 is another schematic diagram of an audio sound system in accordance with an embodiment of the present invention;
fig. 5 is a schematic diagram of a data processing module according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an input processing module according to an embodiment of the present invention
Fig. 7 is a schematic diagram of an output processing module according to an embodiment of the present invention;
fig. 8 is a schematic diagram of an electronic device according to an embodiment of the present invention.
In the figure, 100, a car audio main unit; 200. a power amplifier controller; 1. a host system; 2. a power amplifier device; 11. a data processing module; 111. an input processing module; 1111. inputting a mute; 1112. an input booster; 1113. inputting a time delay device; 1114. inputting a polarity controller; 1115. an air attenuation compensator; 1116. inputting an equalization effector; 112. an output processing module; 1121. a filter; 1122. an output mute; 1123. an output booster; 1124. outputting a balance effect device; 1125. an output delayer; 1126. an output polarity controller; 1127. an output pressure limiter; 12. a first power amplifier unit; 13. a host bus transceiver; 14. a microprocessor; 15. a system processing module; 16. a CAN bus transceiver; 21. a second power amplifier unit; 22. a power amplifier bus transceiver; 3. a loudspeaker.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Meanwhile, it should be understood that, in the following description, the "circuit" refers to a conductive loop constituted by at least one element or sub-circuit through electrical connection or electromagnetic connection. When an element or circuit is referred to as being "connected to" another element or element/circuit is referred to as being "connected between" two nodes, it may be directly coupled or connected to the other element or intervening elements may be present, and the connection between the elements may be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled" or "directly connected" to another element, it is intended that the two be absent intermediate elements.
Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Next, an audio system in the present embodiment will be described by taking a car audio system as an example. It should be understood that the sound system in the present embodiment can be applied to various devices requiring audio playback, such as home theaters, large conference rooms, and multi-functional halls.
For ease of understanding, specific terminology commonly used in car audio systems is given below.
An MCU (micro controller Unit), also called a single-chip microcomputer or a single-chip microcomputer, is a chip-level computer formed by appropriately reducing the frequency and specification of a cpu and integrating peripheral interfaces such as a memory, a counter, a USB, an a/D converter, and a driving circuit on a single chip.
A DSP (Digital Signal Processing) is used to perform Processing such as acquisition, transformation, filtering, estimation, enhancement, compression, and recognition on signals in a Digital form.
A2B (automatic Audio Bus), a vehicle-mounted high-broadband, bidirectional and Audio Bus, can be used for connecting a vehicle-mounted Audio ECU, a microphone array, a power amplifier, a loudspeaker and the like.
AMP (Amplifier), an Amplifier, a device that can amplify the voltage or power of an input signal.
SPK (Speaker), a transducer device that converts electrical signals into acoustic signals.
Fig. 1 is a schematic diagram of a conventional low-profile audio system. As shown in fig. 1, a low-profile audio system is often used in situations where there are few channels to play and the requirements for sound effects are low. In the low-profile audio system, a microcontroller MCU, a system processing module SOC, a digital processing module DSP, a power amplifier module AMP, and a CAN bus module are provided in the car audio main unit 100. Wherein, the microprocessing module MCU is used for controlling the whole operation process of the sound system. The CAN bus module is used for processing CAN bus signals in the sound system. When the system is used, the audio signal to be processed can be directly sent to the power amplification module AMP to be amplified through the system processing module SOC, and the amplified audio signal drives the loudspeaker SPK to play; the digital processing module DSP can also be used for storing a sound effect algorithm, the audio signals sent by the system processing module SOC are subjected to encoding, decoding, analog-to-digital conversion and other processing based on the sound effect algorithm, and after the processing is finished, the power amplifier module AMP amplifies the processed audio signals sent by the digital processing module DSP, so that the loudspeaker SPK is driven to play the amplified audio signals. Based on this, this sound system can only satisfy the stereo set broadcast experience that the broadcast passageway is few, and the function is single, and the suitability is poor.
The high-configuration sound system is mainly applied to a complex system with multiple playing channels and higher sound effect requirement. Compared with a low-configuration sound system, the number of the loudspeakers is increased greatly, and accordingly the number of channels of the power amplification module is increased greatly. If the number of power amplifier modules is increased only in a vehicle-mounted sound system host in a low-configuration sound system, the assembly difficulty is increased, and the functions of heat dissipation and the like cannot meet the requirements. Therefore, an independent external power amplifier controller is often configured in the existing high-configuration sound system, so that the requirements are met by the combined use of the vehicle-mounted sound host and the power amplifier controller.
Fig. 2 is a schematic diagram of a conventional high-profile audio system. As shown in fig. 2, the high-definition audio system includes a car audio host 100 and a power amplifier controller 200. The vehicle-mounted sound system host 100 comprises a vehicle-mounted microcontroller MCU, a vehicle-mounted system processing module SOC, a vehicle-mounted digital processing module DSP, a vehicle-mounted power amplifier module AMP, a vehicle-mounted CAN bus module and a vehicle-mounted A2B bus transceiver. The power amplifier controller 200 comprises a power amplifier microcontroller MCU, a power amplifier digital processing module DSP, a power amplifier CAN bus module, a power amplifier A2B bus transceiver and at least one power amplifier module AMP.
When using as high configuration version sound system, vehicle microcontroller MCU issues corresponding control signal to power amplifier microprocessor MCU through vehicle CAN bus module and power amplifier CAN bus module CAN, send control signal to power amplifier digital processing module DSP by power amplifier microprocessor MCU again, so that power amplifier digital processing module DSP carries out corresponding control process according to received control signal, and send the result after will carrying out to each power amplifier module AMP and handle, and then realize vehicle audio system's control and communication process. When sound is played, the vehicle-mounted system processing module SOC sends audio signals to be processed to the power amplifier A2B bus transceiver through the vehicle-mounted A2B bus transceiver. And the power amplifier digital processing module DSP receives the audio signal sent by the power amplifier A2B bus transceiver and carries out processing such as coding, decoding, analog-to-digital conversion and the like on the received audio signal to be processed based on a built-in sound effect algorithm. After the processing is finished, each power amplification module AMP receives the processed audio signal of the corresponding channel, amplifies the corresponding processed audio signal, and plays the audio signal amplified by the corresponding channel through the loudspeaker corresponding to each power amplification module, so as to meet the requirement of a high-version sound system.
Further, the sound system shown in fig. 2 may also use only one power amplifier module to realize sound playing when in use, so as to meet the use requirements of the low-profile sound system. However, when the system is used as a low-profile audio system, the vehicle-mounted digital processing module DSP and the vehicle-mounted power amplifier module AMP in the vehicle-mounted audio host are both in an idle state, which causes resource waste.
In view of this, the present invention provides a sound system to improve the applicability of the sound system and reduce the use cost of the sound system.
Fig. 3 is a schematic diagram of an audio system according to an embodiment of the present invention. As shown in fig. 3, the sound system in this embodiment includes a host system 1 and a power amplifier device 2. The host system 1 includes a data processing module 11 and a first power amplifier unit 12. The power amplifier device 2 comprises at least one second power amplifier unit 21. The data processing module 11 is configured to receive and process the first audio signal and generate a second audio signal. The first power amplifier unit 12 is connected to the data processing module 11 and the speaker 3, and is configured to receive the second audio signal and drive the corresponding speaker 3 to play the second audio signal. The power amplifier device 2 is connected to the data processing module 11, and includes at least one second power amplifier unit 21, and each second power amplifier unit 21 is configured to receive the second audio signal and drive the corresponding speaker 3 to play the second audio signal.
Further, under the use requirement of the low-dubbing audio system, the first power amplifier unit 12 receives a second audio signal and drives the corresponding loudspeaker 3 to play the second audio signal; under the use requirement of the high-distribution sound system, at least one second power amplifier unit 21 in the power amplifier device 2 receives a second audio signal and drives the corresponding loudspeaker 3 to play the second audio signal, so that the high-distribution use requirement of multi-loudspeaker playing is met. From this, through the switching use of the second power amplifier unit in first power amplifier unit and the power amplifier equipment for audio system can satisfy simultaneously that the low joins in marriage and highly join in marriage the user demand, improves audio system's suitability. Moreover, compared with the sound system which can meet the requirements of low-level and high-level configurations in the prior art, the sound system in the embodiment processes the first audio signal through the data processing module in the host system to generate the second audio signal for playing, and the system processing module and other signal processing modules are not required to be arranged inside the power amplifier device again, so that the structure of the sound system is more simplified, and the use cost of the sound system can be reduced.
Fig. 4 is another schematic diagram of an audio sound system according to an embodiment of the present invention. As shown in fig. 4, the sound system in this embodiment includes a host system 1 and a power amplifier device 2. The host system 1 includes a data processing module 11, a first power amplifier unit 12 and a host bus transceiver 13. The power amplifier device 2 comprises a power amplifier bus transceiver 22 and at least one second power amplifier unit 21. Wherein the host bus transceiver 13 is connected with the data processing module 11, configured to receive and transmit the second audio signal. The power amplifier bus transceiver 22 is connected to the host bus transceiver 13, and configured to receive the second audio signal and distribute the second audio signal to the corresponding second power amplifier unit 21.
When in use, the data processing module 11 receives the first audio signal and processes the first audio signal to generate a second audio signal. When the audio system is used as a low-dubbing audio system, the second audio signal is received through the first power amplification unit 12, and the second audio signal is played by the loudspeaker 3 connected with the first power amplification unit 12. When the high-dubbing audio system is used, the power amplifier device 2 receives the second audio signal sent by the host bus transceiver 13 through the power amplifier bus transceiver 22, transmits the second audio signal to at least one second power amplifier unit 21, and plays the corresponding second audio signal through the loudspeaker 3 connected with each second power amplifier unit 21. Therefore, the sound system in the embodiment can meet the use requirements of a low dubbing sound system and can also meet the use requirements of a high dubbing sound system, so that the sound system is stronger in applicability. And when the sound system is used as a high-dubbing sound system, the sound system is more simplified in structure, the number of system elements is small, and the use cost is lower because the use of a data processing module is reduced in the power amplifier equipment.
Optionally, as shown in fig. 4, in this embodiment, the host system 1 and the power amplifier device 2 are connected through an A2B bus, and both the host bus transceiver 13 and the power amplifier bus transceiver 22 adopt an A2B transceiver.
Optionally, as shown in fig. 4, in the sound system in this embodiment, the host system further includes a system processing module 15. The system processing module 15 is an SOC integrated chip configured to output a first audio signal.
Further, the first audio signal output by the system processing module 15 in this embodiment may be an analog audio signal, or may be a digital audio signal. When the first audio signal output by the system processing module 15 is an analog audio signal, the data processing module 11 receives the first audio signal, performs analog-to-digital conversion on the received first audio signal to generate a digital audio signal, and processes the digital audio signal to generate a second audio signal. When the first audio signal output by the system processing module 15 is a digital audio signal, the data processing module 11 receives the first audio signal, processes the first audio signal, and generates a second audio signal to be played.
Optionally, the first power amplifier unit and the second power amplifier unit in this embodiment both use power amplifier chips AMP, and the number of channels corresponding to each second power amplifier unit is the same. Therefore, the sound system structure is more modularized through the setting mode, and arrangement and management are further facilitated.
Optionally, the number of channels corresponding to the first power amplifier unit 12 and the second power amplifier unit 21 may be 2, 4, 5, 7, or 9, respectively. In this embodiment, the signal sources corresponding to the channels are all second audio signals, different sound signals corresponding to the channels are obtained by sampling the second audio signals in different sampling manners, and the channels output the different sound signals respectively.
Further, the number of channels corresponding to the first power amplifier unit 12 and the second power amplifier unit 21 in this embodiment is the same. Specifically, the first power amplifier unit 12 and the second power amplifier unit 21 in this embodiment both use power amplifier chips with 4 channels, and the 4 channels are respectively used for outputting a left channel treble, a left channel bass, a right channel treble, and a right channel bass.
It should be understood that the number of channels in the present embodiment may be selected according to the actual usage scenario, and this is only to give an example, but the specific number of channels is not limited.
Optionally, the data processing module 11 in this embodiment includes at least one sound effect processor. Each sound effect processor employs a DSP processor configured to perform a corresponding processing operation on the first audio signal according to predetermined processing parameters to generate a corresponding second audio signal. The sound effect processors are connected in series, and the sound effect processor at the initial position is used for receiving the first audio signal. The sound effect processor at the last position is connected with the first power amplifier unit 12 or the power amplifier bus transceiver 22 through the host bus transceiver 13.
Alternatively, as shown in fig. 5, the data processing module 11 in the present embodiment includes an input processing module 111 and a plurality of output processing modules 112. The input processing module 111 is configured to receive and process the first audio signal and generate a channel audio signal corresponding to each channel. Each output processing module 112 is connected to the input processing module 111 and is configured to receive and process a corresponding channel audio signal to generate a corresponding second audio signal.
Further, in this embodiment, the first power amplifier unit and the second power amplifier unit may receive a second audio signal corresponding to a single channel, or may receive audio signals corresponding to all channels. For example, when the speaker plays the audio signal corresponding to a single channel, the first power amplifier unit or the second power amplifier unit corresponding to the speaker receives and amplifies the second audio signal corresponding to the single channel. When the loudspeaker plays the sound signals corresponding to all the sound channels, the first power amplification unit or the second power amplification unit corresponding to the loudspeaker receives and amplifies the second audio signals corresponding to all the sound channels. For example, in this embodiment, the speaker corresponding to the first power amplifier unit is used to play stereo, and the first power amplifier unit receives the second audio signals corresponding to the 4 channels output by the data processing module, and drives the speaker to output a left channel treble, a left channel bass, a right channel treble, and a right channel bass corresponding to the 4 channels, so as to form a stereo audio signal. For another example, when a speaker corresponding to one of the second power amplifier units in the power amplifier device is used to play a sound signal corresponding to the left channel treble, the second power amplifier unit only receives a second audio signal of a channel corresponding to the left channel treble, but does not receive second audio signals corresponding to other channels.
Further, the input processing module in this embodiment includes a plurality of audio processors connected in series, and each of the audio processors is configured to perform a corresponding type of signal processing operation on the audio signal according to a preset processing parameter.
Fig. 6 is a schematic diagram of an input processing module according to an embodiment of the present invention. Optionally, the input processing module in this embodiment comprises at least one of an input mute, an input booster, an input delay, an input polarity controller, an air attenuation compensator, and an input equalization effector. Further, as shown in fig. 6, the input processing module 111 in this embodiment includes an input mute 1111, an input booster 1112, an input delay 1113, an input polarity controller 1114, an air attenuation compensator 1115, and an input equalization effector 1116, which are connected in series in sequence, so as to optimize the quality of the audio signal output by the speaker and further improve the user experience.
The input mute 1111 is configured to perform mute switch processing on the first audio signal received by the input processing module 111. The input booster 1112 is configured to perform gain sound effect processing on the signal output by the input mute 1111. The input delayer 1113 is configured to delay the signal output by the input gainer 1112. The input polarity controller 1114 is configured to perform polarity control on the signal output by the input delay 1113. The air attenuation compensator 1115 is configured to perform air attenuation compensation processing on the signal output from the input polarity controller 1114. The input equalization effector 1116 is configured to switch the signal output by the air attenuation compensator 1115 to signals of different frequency bands, and each frequency band corresponds to one channel. The input equalization effector 1116 in this embodiment is also called an EQ equalization effector, and performs different processing on the signal output by the air attenuation compensator by adjusting EQ processing parameters in the EQ equalization effector, so as to output different channel audio signals. Therefore, in the embodiment, the first audio signal received by the data processing module is processed by the sound effect processor to generate the channel audio signals corresponding to different channels.
Further, in this embodiment, each channel audio signal output by the input processing module 111 corresponds to one output processing module 112, and each output processing module 112 receives and processes the corresponding channel audio signal to generate a corresponding second audio signal.
Fig. 7 is a schematic diagram of an output processing module according to an embodiment of the present invention. As shown in fig. 7, the output processing module 112 in this embodiment includes a plurality of sound processors connected in series, wherein the sound processor at the start position of the output processing module 112 is a filter 1121, and the filter 1121 is used for performing filtering processing on the received channel audio signal.
Further, the output processing module 112 in this embodiment includes a filter 1121, an output muter 1122, an output booster 1123, an output equalization effector 1124, an output delay 1125, an output polarity controller 1126, and an output limiter 1127, which are sequentially connected in series. The filter 1121 is located at the start position of the output processing module 112 and is used for performing filtering processing on the received channel audio signal. The output mute 1122 is configured to mute the signal output from the filter 1121. The output booster 1123 is used for performing gain sound effect processing on the signal output by the output silencer 1122. The output equalization effector 1124 is configured to perform equalization sound effect processing on the signal output by the output booster 1123. The output delay 1125 is used to delay the signal output from the output equalizer 1124. The output polarity controller 1126 controls the polarity of the signal output from the output delay 1125. The output voltage limiter 1127 is configured to perform compression and amplitude limiting processing on the signal output by the output polarity controller 1126. Therefore, in this embodiment, the audio signals of each channel are processed through the above audio processing process to generate the second audio signals corresponding to the first power amplifier unit or each second power amplifier unit, so that after the first power amplifier unit and the second power amplifier unit receive and amplify the second audio signals, the corresponding speakers are driven to output the audio signals of the corresponding channels.
Optionally, as shown in fig. 4, in the sound system in the present embodiment, the host system further includes a microprocessor 14 and a CAN bus transceiver 16. The microprocessor 14 is an MCU chip and configured to send control signals to the data processing module 11 and the CAN bus transceiver 16, where the control signals are used to control the data processing module 11 and the CAN bus transceiver 16. The CAN bus transceiver 16 is configured to transmit CAN bus signals in the sound system.
Further, the system processing module 15 in this embodiment is further configured to send the processed signal to the data processing module 11, the first power amplifier unit 12 and the second power amplifier unit 21. Specifically, when sending the processed signal to the second power amplifier unit 21, the system processing module 15 sends the processed signal to the power amplifier bus transceiver 22 through the host bus transceiver 13, and the power amplifier bus transceiver 22 transmits the processed signal to the second power amplifier unit 21. Therefore, the processing signals are sent to the first power amplifier unit and the second power amplifier unit through the system processing module so as to control the first power amplifier unit and the second power amplifier unit to perform corresponding processing on the received signals, and then the corresponding loudspeaker is driven to play sound according to the processed result, so that the use requirements of different sound systems are met.
Fig. 8 is a schematic diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 8, the electronic device in this embodiment includes a sound system and at least one speaker 3, and the sound system includes a host system 1 and a power amplifier device 2. The host system 1 comprises a data processing module and a first power amplifier unit, the power amplifier device 2 comprises at least one second power amplifier unit, and each loudspeaker 3 is connected with the corresponding first power amplifier unit or the corresponding second power amplifier unit and used for playing a corresponding second audio signal.
During use, the data processing module in the host system 1 is configured to receive and process the first audio signal and generate a second audio signal, and the first power amplifier unit receives the second audio signal and drives the corresponding speaker 3 to play the second audio signal, so as to meet the use requirement of the low-dubbing system. Or, the data processing module is configured to receive and process the first audio signal and generate a second audio signal, and at least one second power amplifier unit in the power amplifier device 2 receives the second audio signal and drives the corresponding speaker 3 to play the second audio signal, so as to meet the use requirement of the high-dubbing-loudness system played by multiple speakers. From this, this embodiment uses through the switching of the second power amplifier unit in first power amplifier unit and the power amplifier equipment for audio system can satisfy simultaneously that low joining in marriage and high joining in marriage the user demand, improves audio system's suitability. In addition, the sound system in the embodiment has a simple structure, and the use cost of the sound system can be reduced.
Optionally, in this embodiment, the host system 1 further includes a host bus transceiver, and the power amplifier device 2 further includes a power amplifier bus transceiver. In this embodiment, the host bus transceiver receives a second audio signal generated after the data processing module processes the second audio signal, and transmits the second audio signal to the power amplifier bus transceiver. The power amplifier bus transceiver receives a second audio signal sent by the host bus transceiver and transmits the second audio signal to the corresponding second power amplifier unit, so that the second power amplifier unit drives the corresponding loudspeaker to play a sound signal corresponding to the second audio signal after receiving the second audio signal, and the use requirements of users are met.
Optionally, the host system in this embodiment further includes a system processing module. Further, the first audio signal output by the system processing module in this embodiment may be an analog audio signal, or may be a digital audio signal. When the first audio signal output by the system processing module is an analog audio signal, the data processing module receives the first audio signal, performs analog-to-digital conversion processing on the received first audio signal to generate a digital audio signal, and then processes the digital audio signal to generate a second audio signal. When the first audio signal output by the system processing module is a digital audio signal, the data processing module receives the first audio signal and processes the first audio signal to generate a second audio signal to be played.
Optionally, in this embodiment, the number of channels corresponding to the first power amplifier unit and the second power amplifier unit is the same. The data processing module comprises at least one sound effect processor, and each sound effect processor is configured to execute corresponding processing operation on the first audio signal according to a preset processing parameter so as to generate a corresponding second audio signal.
Further, the data processing module in this embodiment includes an input processing module and a plurality of output processing modules. The input processing module receives and processes the first audio signal and generates channel audio signals corresponding to the channels. Each output processing module is connected with the input processing module and receives and processes the corresponding channel audio signal to generate a corresponding second audio signal.
Specifically, the input processing module in this embodiment includes a plurality of sound effect processors connected in series, including an input mute, an input booster, an input delay, an input polarity controller, an air attenuation compensator, and an input equalization effector. And each sound effect processor carries out corresponding signal processing operation on the audio signals according to preset processing parameters. The output processing module comprises a plurality of sound effect processors connected in series, and comprises a filter, an output mute, an output gain device, an output equalization effect device, an output time delay device, an output polarity controller and an output voltage limiter.
Further, the host system in this embodiment further includes a microprocessor and a CAN bus transceiver. The microprocessor is configured to send control signals to the data processing module to coordinate the various components in the sound system for better functionality and to provide convenience for use of the sound system. The CAN bus transceiver is configured to transmit CAN bus signals in the sound system so as to ensure the smoothness of signal transmission in the sound system and be beneficial to further improving the service performance of the sound system.
According to the technical scheme of the embodiment, the data processing module in the host system receives and processes the first audio signal and generates the second audio signal to be played. And the first power amplification unit receives the second audio signal and drives the corresponding loudspeaker to play the second audio signal, so that the use requirement of the low-dubbing audio system is met. The second audio signal is received through at least one second power amplifier unit in the power amplifier equipment and the corresponding loudspeaker is driven to play the second audio signal, so that the use requirements of a plurality of loudspeakers in the high-dubbing audio system for playing the audio signal are met, the applicability of the audio system is further improved, the structure is simplified, and the use cost of the audio system can be reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A sound system, the system comprising:
the host system comprises a data processing module and a first power amplifier unit, wherein the data processing module is configured to receive a first audio signal and process the first audio signal to generate a second audio signal; the first power amplifier unit is connected with the data processing module and configured to receive the second audio signal and drive a corresponding loudspeaker to play the second audio signal;
and the power amplifier equipment is connected with the data processing module and comprises at least one second power amplifier unit, and the second power amplifier unit is configured to receive the second audio signal and drive a corresponding loudspeaker to play the second audio signal.
2. The sound system of claim 1, wherein the host system further comprises:
a host bus transceiver connected to the data processing module and configured to receive and transmit the second audio signal;
the power amplifier device further includes:
and the power amplifier bus transceiver is connected with the host bus transceiver and is configured to receive the second audio signal and distribute the second audio signal to the corresponding second power amplifier unit.
3. The sound system of claim 1, wherein the number of channels corresponding to the first power amplifier unit and the second power amplifier unit is the same.
4. The sound system of claim 1, wherein the data processing module comprises at least one sound effect processor, each sound effect processor configured to perform a corresponding processing operation on the first audio signal according to predetermined processing parameters to generate a corresponding second audio signal.
5. The sound system of claim 1, wherein the data processing module comprises:
an input processing module configured to receive and process the first audio signal and generate a channel audio signal corresponding to each channel;
a plurality of output processing modules, each output processing module connected with the input processing module, configured to receive and process a corresponding channel audio signal to generate a corresponding second audio signal.
6. The sound system as claimed in claim 5, wherein the input processing module comprises a plurality of sound effect processors connected in series, each sound effect processor being configured to perform a corresponding kind of signal processing operation on the audio signal according to preset processing parameters.
7. The sound system according to claim 5 or 6, wherein the input processing module comprises at least one of an input mute, an input booster, an input delay, an input polarity controller, an air attenuation compensator, and an input equalization effector.
8. The sound system as claimed in claim 5, wherein the output processing module comprises a plurality of sound effect processors connected in series, and the sound effect processor at the start position is a filter for filtering the received channel audio signal.
9. The sound system of claim 1, wherein the host system further comprises:
a microprocessor configured to transmit a control signal to the data processing module.
10. The sound system of claim 1, wherein the host system further comprises:
a system processing module configured to output the first audio signal.
11. The sound system of claim 1, wherein the host system further comprises:
a CAN bus transceiver configured to transmit CAN bus signals in the sound system.
12. An electronic device, characterized in that the electronic device comprises:
a sound system as claimed in any one of claims 1-11;
and each loudspeaker is connected with the corresponding first power amplification unit or the second power amplification unit and is used for playing the corresponding second audio signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221397946.2U CN217825224U (en) | 2022-05-30 | 2022-05-30 | Acoustic system and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221397946.2U CN217825224U (en) | 2022-05-30 | 2022-05-30 | Acoustic system and electronic device |
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| CN217825224U true CN217825224U (en) | 2022-11-15 |
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| CN202221397946.2U Active CN217825224U (en) | 2022-05-30 | 2022-05-30 | Acoustic system and electronic device |
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Assignee: Shanghai Jusheng Technology Co.,Ltd. Assignor: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT Co.,Ltd. Contract record no.: X2023980048854 Denomination of utility model: Sound system and electronic equipment Granted publication date: 20221115 License type: Common License Record date: 20231128 |