WAV（波形音频文件格式）
WAV 是一种未压缩的音频格式，存储原始 PCM（脉冲编码调制）音频数据。它提供比特级完美的音频质量，没有任何压缩失真，是音频制作、录音棚和任何不能在质量上妥协的工作流的标准。
MIME 类型
audio/wav
类型
二进制
压缩
无损
优点
- + Bit-perfect uncompressed audio with zero quality loss
- + Universal support in all audio editors and DAWs
- + No decoding overhead — instant playback
- + Standard in professional audio production
缺点
- − Very large files — about 10 MB per minute at CD quality
- − No built-in metadata tags (no standard title/artist/album fields)
- − 4 GB file size limit in standard RIFF format
何时使用 .WAV
当需要无损音质时，将 WAV 用于音频录制、编辑和母带处理；分发时转换为 MP3 或 FLAC。
技术细节
WAV 使用 RIFF 容器，其中 fmt 块描述音频格式（采样率、位深、通道数），data 块包含原始 PCM 采样。CD 音质为 44.1 kHz、16 位、立体声（约 10 MB/分钟）。
历史
Microsoft 和 IBM 于 1991 年作为 Windows 3.1 的 RIFF（资源交换文件格式）规范的一部分引入了 WAV。它成为了 PC 上的标准未压缩音频格式。
从 .WAV 转换
转换为 .WAV
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