CN112581932A - Wired and wireless sound mixing system based on DSP - Google Patents
Wired and wireless sound mixing system based on DSP Download PDFInfo
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- CN112581932A CN112581932A CN202011342438.XA CN202011342438A CN112581932A CN 112581932 A CN112581932 A CN 112581932A CN 202011342438 A CN202011342438 A CN 202011342438A CN 112581932 A CN112581932 A CN 112581932A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 5
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- G—PHYSICS
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Abstract
The invention discloses a wired and wireless sound mixing system based on a DSP. The system comprises a first audio device and a second audio device, wherein the first audio device and the second audio device are used for providing a first audio signal and a second audio signal, the first audio device and the second audio device are connected with a sound mixing device, the sound mixing device comprises a first communication module, a DSP (digital signal processor), a single chip microcomputer, a second communication module and a power module, the single chip microcomputer is respectively connected with the power module and a human-computer interaction module, and the human-computer interaction module is used for a user to set sound mixing configuration. The audio mixing device carries out audio mixing processing on received audio signals through the DSP, the DSP is connected with the single chip microcomputer, the single chip microcomputer provides an audio mixing configuration interface for a user through connecting the human-computer interaction module, the user can carry out audio mixing configuration according to needs, the audio mixing device is convenient to use, meanwhile, a power supply module of the audio mixing device has double monitoring functions of a charger and a voltage reduction module, and can be switched to a storage battery for supplying power in time when abnormity occurs.
Description
Technical Field
The invention belongs to the technical field of cleaning devices, and particularly relates to a wired and wireless sound mixing system based on a DSP.
Background
The mixing technique is to integrate sounds from more than two sources into one stereo or monophonic track, and mixing is not only an art but also a key step in assembling the tracks into the final music. For professional personnel, a large mixing device is generally adopted to record different musical instruments, voices or orchestra in a live performance or recording room, then the frequency, the dynamics, the tone quality, the positioning, the reverberation and the sound field of each original signal are independently adjusted through the mixing device, so that each sound track is optimized, and then the sound tracks are superposed on a final finished product. With the development of intelligent electronic products, mixing equipment has been developed into products required by the public, professional mixing equipment is extremely expensive, and does not meet the consumption capability of the public, so that the development of mixing equipment meeting the requirements of the public becomes especially important.
Disclosure of Invention
The invention aims to provide a wired and wireless sound mixing system based on a DSP (digital signal processor) aiming at the defects in the prior art.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows: a wired and wireless sound mixing system based on a DSP (digital signal processor) at least comprises a first audio device and a second audio device, wherein the first audio device and the second audio device are respectively used for providing a first audio signal and a second audio signal, the first audio device and the second audio device are connected with a sound mixing device, the sound mixing device comprises a first communication module used for receiving the first audio signal and the second audio signal, the first communication module is connected with a DSP processor, the DSP processor is respectively connected with a single chip microcomputer, a second communication module and a power module, the single chip microcomputer is respectively connected with the power module and a human-computer interaction module, the human-computer interaction module is used for setting a sound mixing configuration for a user, the single chip microcomputer is used for generating a corresponding sound mixing control instruction according to the sound mixing configuration and sending the sound mixing control instruction to the DSP processor, and the DSP processor carries out sound mixing processing on the first audio signal and the second audio signal according to the sound mixing control instruction, the second communication module is used for being connected with the playing device so that the playing device can play the audio signal after the audio mixing processing.
Preferably, the human-computer interaction module is further configured to enable a user to select a processing mode of the audio signal after the audio mixing process, where the processing mode includes sending the audio signal after the audio mixing process to the first audio device or the second audio device through the first communication module.
Preferably, the mixing configuration includes a plurality of application scenarios, and the mixing parameter in each application scenario is adjustable.
Preferably, the single chip microcomputer is further connected with a storage module, the processing mode comprises storage, the DSP processor further sends the audio signals subjected to the sound mixing processing to the single chip microcomputer, and the single chip microcomputer controls the storage module to store the audio signals subjected to the sound mixing processing.
Preferably, the first communication module and the second communication module include a wired communication module and a wireless communication module, respectively.
Preferably, the wired communication module comprises an audio module, and the wireless communication module comprises a bluetooth module and a WIFI module.
Preferably, the power module comprises a charger, the charger is connected with a voltage reduction module, and the voltage reduction module is respectively connected with the single chip microcomputer and the DSP processor.
Preferably, the charger is further connected with a charging control circuit and a voltage feedback circuit, the charging control circuit is connected with the storage battery, the storage battery and the voltage reduction module are connected with the single chip microcomputer and the DSP through a selector switch, the voltage feedback circuit is respectively connected with the single chip microcomputer and the voltage reduction module and used for monitoring output voltages of the charger and the voltage reduction module, and when the output voltage of the charger or the voltage reduction module is abnormal, the single chip microcomputer is controlled by the storage battery through the selector switch to supply power.
Preferably, the voltage feedback circuit comprises a resistor R1 with one end connected with the charger, the other end of the resistor R1 is connected with one end of a resistor R2 and a first pin of an optocoupler U1 respectively, the other end of the resistor R2 and a second pin of the optocoupler U1 are grounded, a third pin of the optocoupler U1 is connected with the single chip microcomputer, and a fourth pin of the optocoupler is connected with the output end of the voltage reduction module.
Preferably, the first audio device comprises a mobile phone or a computer, and the second audio device comprises a microphone or a device with a microphone function.
Has the advantages that: compared with the prior art, the invention has the following advantages: the audio mixing device carries out audio mixing processing on received audio signals through the DSP, the DSP is connected with the single chip microcomputer, the single chip microcomputer provides an audio mixing configuration interface for a user through connecting the human-computer interaction module, the user can carry out audio mixing configuration according to needs, the audio mixing device is convenient to use, meanwhile, a power supply module of the audio mixing device has double monitoring functions of a charger and a voltage reduction module, and can be switched to a storage battery for supplying power in time when abnormity occurs.
Drawings
FIG. 1 is a schematic diagram of a DSP-based wired and wireless mixing system;
fig. 2 is a schematic diagram of a DSP-based wired and wireless mixing system.
Detailed Description
The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, the DSP-based wired and wireless mixing system of the present application at least includes a first audio device 1 and a second audio device 2, where the first audio device 1 and the second audio device 2 are respectively used for providing a first audio signal and a second audio signal. Specifically, the first audio device includes a mobile phone or a computer, and the computer includes a notebook, a desktop, and a tablet computer. The second audio device 2 comprises a microphone or a device with microphone functionality, such as a headset or the like. The first audio device 1 and the second audio device 2 are connected to a sound mixing device 3, the sound mixing device 3 includes a first communication module 4, and the first communication module 4 is configured to receive a first audio signal and a second audio signal. Optionally, the first communication module 4 includes a wired communication module and a wireless communication module, specifically, the wired communication module includes an audio module, and the wireless communication module includes a bluetooth module and a WIFI module. The first communication module is connected with a DSP (digital signal processor) 5, and then sends the first audio signal and the second audio signal received by the first communication module to the DSP 5. DSP processor 5 and singlechip 6, second communication module 7 and power module are connected respectively, singlechip 6 is connected respectively with power module and human-computer interaction module 9, wherein, human-computer interaction module 9 is used for presenting human-computer interaction operation interface, thereby make the user set for the audio mixing configuration as required, singlechip 6 is used for configuring the audio mixing and generating corresponding audio mixing control command, and send the audio mixing control command to DSP processor 5, DSP processor 5 can carry out the audio mixing processing to first audio signal and second audio signal according to the audio mixing control command, second communication module 7 is used for being connected with playback devices 10, so that playback devices 10 play the audio signal after the audio mixing is handled. Similarly, the second communication module 7 also includes a wired communication module and a wireless communication module, specifically, the wired communication module includes an audio module, and the wireless communication module includes a bluetooth module and a WIFI module.
The human-computer interaction module 9 is further configured to enable a user to select a processing mode of the audio signal after the audio mixing process, where the processing mode includes sending the audio signal after the audio mixing process to the first audio device 1 or the second audio device 2 through the first communication module 4.
The audio mixing configuration comprises a plurality of application scenes, specifically, the application scenes commonly adopted by the public, such as a singing scene, reading of background music and the like, in the singing scene, the first audio equipment can provide a music source file, the second audio equipment can obtain a singing sound signal, then processing is carried out according to audio mixing parameters, the audio mixing parameters in each application scene can be adjusted, such as chorus forming or original singing sound shielding and the like, and the volume ratio can be adjusted or a sound special effect can be added.
The single chip microcomputer 6 is further connected with a storage module 11, the processing mode comprises storage, the DSP processor 5 further sends the audio signals subjected to the sound mixing processing to the single chip microcomputer 6, and the single chip microcomputer 6 controls the storage module 11 to store the audio signals subjected to the sound mixing processing.
The power module comprises a charger 12, the charger 12 is an alternating current 220V voltage input and a direct current 12V output, the charger 12 is connected with a voltage reduction module 13, and the voltage reduction module 13 is a 12V input and a 5V output. The voltage reduction module 13 is respectively connected with the single chip microcomputer 6 and the DSP processor 5 to respectively supply power to the single chip microcomputer and the DSP processor.
In order to enable the audio mixing apparatus 3 to continue to be used for a certain period of time when the charger 12 or the power distribution is abnormal, the charger 12 is further connected to a charge control circuit 14 and a voltage feedback circuit 15, the charge control circuit 14 is connected to the storage battery 16, and the charge control circuit 14 charges the storage battery 16 when the amount of electricity in the storage battery 16 is insufficient. The storage battery 16 and the voltage reduction module 13 are connected with the single chip microcomputer 6 and the DSP 5 through a change-over switch 17, the voltage feedback circuit 14 is respectively connected with the single chip microcomputer 6 and the voltage reduction module 13 and used for monitoring the output voltage of the charger 12 and the voltage reduction module 13, and when the output voltage of the charger 12 or the voltage reduction module 13 is abnormal, the single chip microcomputer 6 is controlled by the storage battery 16 through the change-over switch 17 to supply power.
As shown in fig. 2, the voltage feedback circuit 15 includes a resistor R1 having one end connected to the charger 12, the other end of the resistor R1 is connected to one end of a resistor R2 and a first pin of the optocoupler U1, the other end of the resistor R2 and a second pin of the optocoupler U1 are grounded, a third pin of the optocoupler U1 is connected to the single chip microcomputer 6, and a fourth pin of the optocoupler is connected to the output end of the voltage step-down module 13. 12V voltage that charger 12 provided is divided by resistance R1 and resistance R2 back drive emitting diode work in the opto-coupler U1, and when charger 12's output voltage is unusual or step-down module 13 output is unusual, opto-coupler U1 can not provide high level signal to singlechip 6, and then singlechip 6 perception.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a wired wireless sound mixing system based on DSP which characterized in that includes first audio equipment and second audio equipment at least, first audio equipment and second audio equipment are used for providing first audio signal and second audio signal respectively, first audio equipment and second audio equipment are connected with sound mixing equipment, sound mixing equipment is including the first communication module who is used for receiving first audio signal and second audio signal, first communication module is connected with the DSP treater, the DSP treater is connected respectively with singlechip, second communication module and power module, the singlechip is connected respectively with power module and human-computer interaction module, human-computer interaction module is used for supplying the user to set for the sound mixing configuration, the singlechip is used for generating corresponding sound mixing control command with the sound mixing configuration to send sound mixing control command to the DSP treater, the DSP processor carries out sound mixing processing on the first audio signal and the second audio signal according to the sound mixing control instruction, and the second communication module is used for being connected with the playing equipment so that the playing equipment can play the audio signals after the sound mixing processing.
2. The DSP-based wired and wireless mixing system according to claim 1, wherein the human-computer interaction module is further configured to allow a user to select a processing mode of the audio signal after mixing processing, and the processing mode includes sending the audio signal after mixing processing to the first audio device or the second audio device through the first communication module.
3. The DSP-based wired and wireless mixing system according to claim 1, wherein the mixing configuration comprises a plurality of application scenarios, and the mixing parameters in each application scenario are adjustable.
4. The DSP-based wired and wireless sound mixing system according to claim 2, wherein the single chip microcomputer is further connected with a storage module, the processing mode comprises storage, the DSP processor further sends the audio signals after the sound mixing processing to the single chip microcomputer, and the single chip microcomputer controls the storage module to store the audio signals after the sound mixing processing.
5. The DSP-based wired and wireless mixing system according to claim 1, wherein the first communication module and the second communication module respectively comprise a wired communication module and a wireless communication module.
6. The DSP-based wired and wireless mixing system according to claim 5, wherein the wired communication module comprises an audio module, and the wireless communication module comprises a Bluetooth module and a WIFI module.
7. The DSP-based wired and wireless mixing system according to claim 1, wherein the power module comprises a charger, the charger is connected with a voltage reduction module, and the voltage reduction module is respectively connected with the single chip microcomputer and the DSP processor.
8. The DSP-based wired and wireless audio mixing system according to claim 7, wherein the charger is further connected with a charge control circuit and a voltage feedback circuit, the charge control circuit is connected with the storage battery, the storage battery and the voltage reduction module are connected with the single chip microcomputer and the DSP processor through a switch, the voltage feedback circuit is respectively connected with the single chip microcomputer and the voltage reduction module and is used for monitoring output voltages of the charger and the voltage reduction module, and when the output voltages of the charger or the voltage reduction module are abnormal, the single chip microcomputer is controlled by the storage battery through the switch to supply power.
9. The DSP-based wired and wireless mixing system according to claim 8, wherein the voltage feedback circuit comprises a resistor R1 with one end connected with a charger, the other end of the resistor R1 is connected with one end of a resistor R2 and a first pin of an optocoupler U1 respectively, the other end of the resistor R2 and a second pin of the optocoupler U1 are grounded, a third pin of the optocoupler U1 is connected with the single chip microcomputer, and a fourth pin of the optocoupler is connected with the output end of the voltage reduction module.
10. The DSP-based wired and wireless mixing system according to claim 1, wherein the first audio device comprises a mobile phone or a computer, and the second audio device comprises a microphone or a device with a microphone function.
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| CN202011342438.XA CN112581932A (en) | 2020-11-26 | 2020-11-26 | Wired and wireless sound mixing system based on DSP |
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| CN202011342438.XA CN112581932A (en) | 2020-11-26 | 2020-11-26 | Wired and wireless sound mixing system based on DSP |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169367A1 (en) * | 2022-03-07 | 2023-09-14 | 维沃移动通信有限公司 | Audio playing method and electronic device |
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- 2020-11-26 CN CN202011342438.XA patent/CN112581932A/en active Pending
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