WAV Format: Complete Technical Reference
WAV is the workhorse of professional audio. Developed by Microsoft and IBM in 1991, it stores uncompressed audio with zero quality loss. If you work in music production, sound design, or broadcasting, WAV is your baseline format.
History of the WAV Format
WAV stands for Waveform Audio File Format. Microsoft and IBM created it for Windows 3.1 in 1991. It uses the RIFF container structure — Resource Interchange File Format. WAV became the standard for CD-quality audio on computers. Recording studios adopted it because it stores audio exactly as captured. No compression, no artifacts, no compromise. The format has barely changed in 30 years because it does not need to.
Technical Specifications
WAV typically uses PCM encoding — raw audio samples stored as numbers. Bit depths: 8-bit, 16-bit (CD standard), 24-bit (professional standard), and 32-bit float. Sample rates from 8 kHz to 192 kHz and beyond. CD quality means 16-bit, 44.1 kHz. Studio quality means 24-bit, 48 kHz or higher. Supports mono, stereo, and multichannel configurations. File sizes are large — about 10 MB per minute for CD-quality stereo. The traditional WAV format has a 4 GB file size limit due to the 32-bit RIFF header. RF64 and BWF extensions remove this limit.
Pros and Cons
Pros: Zero quality loss. Industry standard for professional audio. Supported on Windows and macOS natively. Every DAW works with WAV. Simple format — fast to read and write. Supports high bit depths and sample rates for studio work. Cons: Very large files. No built-in compression. Limited metadata compared to modern formats. 4 GB size limit in standard WAV. Not ideal for streaming or web delivery. No native DRM support — irrelevant for most users but matters to some distributors.
Device and Software Compatibility
Windows plays WAV natively since 1991. macOS supports it through CoreAudio. Linux handles it via ALSA and PulseAudio. iOS and Android play WAV files. All major web browsers support WAV playback. Pro Tools, Logic Pro, Ableton Live, FL Studio, Audacity, Reaper — every audio editor reads and writes WAV. Most video editors accept WAV audio tracks. Some older portable devices may not support 24-bit or high sample rate WAV files.
When to Use WAV
Use WAV for music production, mastering, and any workflow involving editing. Recording sessions should capture in WAV. Film and TV post-production relies on WAV. Use it as an intermediate format when converting between lossy formats — never convert MP3 to AAC directly. Archive important recordings in WAV. Avoid WAV for web delivery, email attachments, or mobile listening where file size matters. Convert to MP3 or AAC for distribution after your final master is done.