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This article is about what the hardware circuit of audio signal digitization is in the computer network. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The core hardware circuit to realize the digitization of audio signal is Ahammer D converter, that is, audio codec. The function of Ahand D conversion is to convert analog signals with continuous time and continuous amplitude into digital signals with discrete time and discrete amplitude.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

The core hardware circuit to realize the digitization of audio signal is Ahammer D converter, that is, audio codec.

The function of Ahand D conversion is to convert analog signals with continuous time and continuous amplitude into digital signals with discrete time and discrete amplitude. therefore, Ahand D conversion generally goes through four processes: sampling, holding, quantization and coding. Dhand A (digital / analog) converter converts analog audio signal into digital signal at the encoder end, and converts the read digital audio information into analog audio signal output for power amplification and playback.

Extended data:

The digitization of signals is to convert continuously changing analog signals into discrete digital signals, which generally need to complete three steps: sampling, quantization and coding.

Sampling-refers to using a sequence of signal sample values at regular intervals to replace the original continuous signal in time, that is, to discretize the analog signal in time.

Quantization-using a limited number of approximate original continuously changing amplitude values, the continuous amplitude of the analog signal is changed into a limited number of discrete values with certain intervals.

Coding-according to a certain law, the quantized discrete values are represented by binary numbers.

The audio signal processing system is composed of audio recording and playback head assembly, audio recording circuit, audio playback circuit and corresponding interface. Because the band width of the audio signal is much lower than that of the video signal, and the principle of audio signal processing is the same as that of a tape recorder.

Therefore, the audio recording and playback head also adopts the same fixed playback type as the tape recorder, and the audio signal is recorded on one side edge of the tape when the tape moves steadily and crosses the head.

In order to improve the amplitude-frequency characteristics of audio signals and achieve high-quality audio recording and playback, some video recorders also adopt the same design as the video head, which sets the audio head on the drum and rotates accordingly.

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