An audio digital signal processor and system

Abstract

The invention discloses an audio digital signal processor and a system. The audio digital signal processor comprises an infinite impulse response unit, three multi-band dynamic range controllers and a coder-decoder gain module, wherein the three multi-band dynamic range controllers are connected with the infinite impulse response unit and the coder-decoder gain module respectively, and used for receiving a sound data signal transmitted by the infinite impulse response unit at the same time, performing volume adjustment, low-audio-band compression and high-audio-band amplification on the sound data signal respectively, and transmitting the processed sound data signal to the coder-decoder gain module; and the coder-decoder gain module is used for outputting the received signal after gain processing. According to the scheme, the three multi-band dynamic range controllers are arranged to perform volume adjustment, low-audio-band compression and high-audio-band amplification respectively, so that detailed presentations of sounds on a low audio band and a high audio band are enhanced; a horn can be replaced without adjustment of parameters of the multi-band dynamic range controllers; and standardized management of audio parameters is realized.

Description

technical field [0001] The invention relates to the audio field, in particular to an audio digital signal processor and system. Background technique [0002] For the single-speaker design of the Qualcomm platform, the sound quality of the speaker is usually improved by improving the audio digital signal processor DSP. [0003] At present, due to the different appearance of mobile phones, speakers of different sizes are selected, and the sensitivity of speakers of different sizes is very different, which will lead to a large change in the parameters of the multi-band dynamic range controller MBDRC in the audio DSP to match the frequency response. , it is not convenient to control and manage audio parameters. Contents of the invention [0004] In view of this, the present invention provides an audio digital signal processor and system to solve the problem that the mobile phone uses different speakers in the prior art, which causes the parameters of the multi-band dynamic ra...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides an audio digital signal processor and system to solve the problem that the mobile phone uses different speakers in the prior art, which causes the parameters of the multi-band dynamic range controller in the audio DSP to change due to changes in frequency response. , it is not convenient to manage audio parameters, the specific solution is as follows:

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