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wav是什么文件格式

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Jun 13, 2016 am 11:14 AM

wav

WAV是微软公司专门为Windows开发的一种标准数字音频文件格式。它能记录各种单声道或立体声的声音信息，并能保证声音不失真。WAV文件是在PC机平台上很常见的、经典的多媒体音频文件。

wav是什么文件格式

WAV是最常见的声音文件格式之一，是微软公司专门为Windows开发的一种标准数字音频文件，该文件能记录各种单声道或立体声的声音信息，并能保证声音不失真。但WAV文件有一个致命的缺点，就是它所占用的磁盘空间太大（每分钟的音乐大约需要12兆磁盘空间）。

它符合资源互换文件格式（RIFF）规范，用于保存Windows平台的音频信息资源，被Windows平台及其应用程序所广泛支持。Wave格式支持MSADPCM、CCITT A律、CCITT μ律和其他压缩算法，支持多种音频位数、采样频率和声道，是PC机上最为流行的声音文件格式；但其文件尺寸较大，多用于存储简短的声音片段。

WAV文件是在PC机平台上很常见的、最经典的多媒体音频文件，最早于1991年8月出现在Windows3.1操作系统上，文件扩展名为WAV，是WaveForm的简写，也称为波形文件，可直接存储声音波形，还原的波形曲线十分逼真。

WAV文件格式简称WAV格式是一种存储声音波形的数字音频格式，是由微软公司和IBM联合设计的，经过了多次修订，可用于Windows，Macintosh，Linux等多种操作系统。

WAV支持多种音频数字、取样频率和声道，标准格式化的WAV文件和CD格式一样，也是44.1kHz的取样频率，16位量化数字，因此声音文件质量和CD相差无几。WAV的特点如下：真实记录自然声波形，基本无数据压缩，数据量大。

一般来说，由WAV文件还原而成的声音的音质取决于声音卡采样样本的尺寸，采样频率越高，音质就越好，但开销就越大，WAV文件也就越大。

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