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Audio processing method and device and electronic equipment

A technology of audio processing and electronic equipment, applied in the field of electronics, can solve the problems of reducing system optionality, waste, and increasing the total system cost, and achieve the effect of convenient model selection, reducing overall cost, and increasing optionality

Active Publication Date: 2014-04-30
QINGDAO GOERTEK
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Problems solved by technology

[0004] According to the above analysis, in the prior art, when two-channel monophonic PCM signals are transmitted, the optionality of the system is reduced because the DSP requires two PCM interfaces, and at the same time, each PCM interface only occupies one audio channel. waste and increase the overall cost of the system

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  • Audio processing method and device and electronic equipment
  • Audio processing method and device and electronic equipment
  • Audio processing method and device and electronic equipment

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The present invention provides an audio processing method, the method comprising:

[0033] S310. Transmit the first monophonic PCM signal to the first input terminal of the analog switch, and transmit the second monophonic PCM signal to the second input terminal of the analog switch;

[0034] S320. Set the first monophonic PCM signal, the second monophonic PCM signal, and the microprocessor to share the same set of clock signals;

[0035] S330. Connect the analog switch to the PCM interface of the microprocessor, and use the clock signal to switch the first input end and the second input end of the analog switch, so that when the first input end is turned on When the first monophonic PCM signal is transmitted to one channel of ...

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Abstract

The invention discloses an audio processing method and device and electronic equipment. The method comprises the steps that two single-track PCM signals are correspondingly transmitted to two input ends of an analogue switch, and the two single-track PCM signals and a microprocessor are set to share the same group of clock signals; and the analogue switch is connected with a PCM interface of the microprocessor, the clock signals are used for carrying out switch control on the two input ends of the analogue switch, so that when one input end is turned on, one single-track PCM signal is transmitted to one track of the PCM interface, and when the other input end is turned on, the other single-track PCM signal is transmitted to the other track of the PCM interface. When the two single-track PCM signals are transmitted to the microprocessor, only one PCM interface is needed, accordingly, system selectivity is improved, and total cost is lowered.

Description

technical field [0001] The invention relates to the field of electronics, in particular to an audio processing method and device and an electronic device. Background technique [0002] In the field of electronics, Active Echo Cancellation (AEC) is increasingly used in various products, such as mobile phones, high-fidelity headphones (HI FI) and so on. [0003] The AEC algorithm needs to send the two mono signals of the audio receiving signal and the audio transmitting signal to the microprocessor (DSP) at the same time, such as figure 1 As shown, the traditional method is to input the audio receiving signal and the audio transmitting signal into the PCM interface of the DSP, that is, the DSP needs to have two PCM interfaces, but the PCM interface has dual-channel transmission capabilities. Therefore, according to the traditional method , when the audio receiving signal and the audio transmitting signal are transmitted, only one of the channels of the PCM interface is occupi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/16H04S1/00
Inventor 孔庆磊郎园园
Owner QINGDAO GOERTEK
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