Audio fast playing method and apparatus

Abstract

The invention relates to the field of multimedia playing, particularly to a rapid audio playing method and a device thereof. The method comprises the following steps: invoking an audio playing program according to an audio playing request which is resolved from a received user operation message; and sequentially writing audio data in an audio data array into an audio data register of an audio playing controller at a specific rate by the audio playing program; generating data frames by the audio playing controller according to the written audio data and transmitting to an audio playing device,and performing audio playing by the audio playing device via sound equipment according to the received data frames. The audio data is directly written into the audio data register of the audio playing controller at a specific rate, so that a system driving program needs not to be invoked to open audio files and set various audio playing parameters, thereby shortening the time lag before starting audio playing and achieving the purpose of rapid audio playing.

Description

technical field [0001] The invention relates to the field of multimedia playing, in particular to a technology for fast playing audio. Background technique [0002] There can be many types and models of hardware devices for playing audio, but the audio output principle is to use DAC (Digital-Analog Converter, analog to digital signal converter) for sound output: send audio data (digital signal) To the DAC, the DAC outputs a corresponding analog signal (analog voltage or current), and the analog signal is output through audio equipment such as speakers or earphones, thereby realizing audio playback. [0003] In order to control the audio playback device to play audio, an audio playback controller is usually needed to coordinate and control the audio playback device to achieve audio playback requirements (such as figure 1 shown). A commonly used audio playback device may be an audio codec WM9713 chip (also called an AC97 codec chip), and an audio playback controller may be a...

AI Technical Summary

Problems solved by technology

[0027] The inventor of the present invention finds, because the method for prior art audio playback needs to open file, call the driver program of many parameter settings, and these open, or call The operation needs to occupy more system resources and time, so when the audio playback request is received, the related audio playback cannot be performed quickly; that is to say, the system needs to delay for a period of time to output the audio after receiving the audio playback request

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