Multichannel digital/analog sound mixing system based on DSP (digital signal processor)

Abstract

The invention provides a multichannel digital / analog sound mixing system based on a DSP (digital signal processor). The multichannel digital / analog sound mixing system comprises a lower computer for executing sound mixing and an upper computer for parameter control, wherein the lower computer comprises an audio input module, a DSP sound mixing processing unit and a sound mixing output module; theaudio input module comprises a digital audio input module, an analog audio input module and an ADC module; the DSP sound mixing processing unit comprises a digital sound mixing module, a digital filtering module, an equalizer module and a gain adjustment module; the sound mixing output module comprises a digital resolving module and a DAC module. By using the DSP as a core, the multichannel digital / analog audio signal is processed and is then fast mixed and output; the interactive redundancy among a plurality of digital audio systems is avoided; the mixing work of multichannel multi-variety audio signals is convenient; a fast and convenient path is provided for sound mixing of various digital and analog signals.

Description

technical field [0001] The invention relates to the field of audio post-processing, in particular to a multi-functional DSP-based multi-channel sound mixing system. Background technique [0002] With the rapid development of digital technology and the continuous improvement of consumers' demand for high-quality music, the demand for multi-channel music environment has increased sharply, so there is a higher demand for engineers to debug multi-channel mixing. The debugging hardware cannot meet the mixing requirements of more channels. To realize the mixing of more than 16 channels, multiple systems are required to cooperate and debug. From the perspective of improving the efficiency of the experimenters, there is obviously a high room for improvement and improvement. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a DSP-based multi-channel digital / analog mixing system, which solves the problems of insufficient ...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a DSP-based multi-channel digital / analog mixing system, which solves the problem of insufficient number of channels and single functionality of a single system in the past, and is conducive to improving the debugging efficiency of engineers

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