Audio processing device

Abstract

The invention discloses an audio processing device. The audio processing device comprises a signal preprocessing unit used for adjusting amplitude of an external audio signal within a preset amplitude range and sending the external audio signal to an audio processing main chip unit, the audio processing main chip unit which is connected to the signal preprocessing unit and is used for audio gain adjustment control operation of the received audio signal and sending the audio signal to an audio power amplifier unit, and the audio power amplifier unit which is connected to the audio processing main chip unit and is used for amplifying the audio signal and sending the audio signal to a loudspeaker. According to the audio processing device disclosed by the invention, the signal preprocessing unit is additionally arranged at an input end of the audio signal, thus automatically optimizing the final audio output effect, effectively processing the audio signal, guaranteeing audio listening effect for users and being beneficial to enhance life quality and product use experience of users.

Description

technical field [0001] The present invention relates to the technical field of audio processing, in particular to an audio processing device. Background technique [0002] With the continuous development of science and technology in our country, home appliances such as monitors, projectors, all-in-one machines, computers, televisions, video cameras, and cameras are becoming more and more popular in people's daily life, and have become an indispensable part of people's lives. [0003] The current electrical equipment generally has such figure 1 The audio processing device shown. see figure 1 , In order to realize sound playback, these electrical devices usually input audio signals to the audio processing main chip unit (Scaler IC), and the audio processing main chip performs signal gain adjustment processing and sends them to an audio power amplifier unit amp, and then the audio power amplifier unit (Sound Amp) The audio signal is decoded and amplified, and then output to...

AI Technical Summary

Problems solved by technology

[0004] For existing audio processing devices, if the volume adjustment of electrical equipment such as displays is too large, the audio signal input to the audio processing main chip unit Scaler IC will easily have a signal amplitude that is too large, that is to say, it is easy to cause the audio signal to be distorted. The level value will exceed the maximum level value allowed by the audio processing main chip unit Scaler IC, so that the audio signal output by the audio processing main chip unit Scaler IC will be distorted and the problem of clipping distortion will occur (that is, the audio signal comes from the waveform It looks like the top of the mountain has been cut off, this distortion is called top-cut distortion), which causes serious distortion of the sound played by the speaker, seriously affects the user's sound listening effect, and reduces the user's product experience

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