What Is WAV? Everything You Need to Know
Understand the WAV audio format, its uncompressed quality, file sizes, and best uses. Learn when WAV is the right choice.
# What Is WAV? Everything You Need to Know
WAV is raw audio. No compression. No tricks. What you record is what you get.
The Basics
WAV stands for Waveform Audio File Format. Microsoft and IBM created it in 1991. It stores audio as uncompressed PCM data. That means every sample is preserved exactly as captured.
A standard CD-quality WAV file uses 16-bit depth at 44,100 samples per second. That produces about 10 MB per minute of stereo audio. A four-minute song takes 40 MB.
Big files. Perfect quality.
Why WAV Matters
WAV is the standard for professional audio. Recording studios use it. Video editors use it. Sound designers use it. When quality is non-negotiable, WAV is the answer.
Every edit stays clean. No generation loss. No artifacts. You can cut, mix, and process WAV files all day without degrading the audio.
File Size: The Tradeoff
WAV files are large. That's the price of uncompressed audio. A three-minute song at CD quality takes about 30 MB. A one-hour recording takes over 600 MB.
For storage and sharing, that's often too much. That's when you convert WAV to MP3 to shrink files for distribution. Need a smaller lossless option? Convert WAV to FLAC and cut the size in half without losing anything.
When to Use WAV
Use WAV when:
- Recording audio in a studio
- Editing audio in a DAW
- Mastering music
- Storing source files for video production
- You need bit-perfect quality
Don't use WAV for streaming, podcasts, or sharing online. The files are too large. Convert to a compressed format first.
WAV vs FLAC
Both are lossless. Both preserve every detail. The difference is size. FLAC compresses the data. WAV doesn't. A FLAC file is typically 50-60% the size of the equivalent WAV.
Why would anyone choose WAV over FLAC? Speed. WAV files are simpler to decode. Some DAWs and hardware work faster with WAV. In a recording session, that matters.
Technical Specs
WAV supports multiple audio configurations:
- Bit depth: 8-bit, 16-bit, 24-bit, 32-bit float
- Sample rates: 8 kHz to 192 kHz and beyond
- Channels: Mono, stereo, and multichannel
24-bit / 96 kHz WAV is common in professional studios. It provides more headroom and detail than CD quality.
Converting WAV
WAV is the starting point for most conversions. You can go from WAV to nearly anything without quality concerns.
Need files for your phone? Convert WAV to MP3. Want an open format? Convert WAV to OGG. Prefer Apple's ecosystem? Convert WAV to M4A.
Going the other way works too. If someone sends you an MP3 and you need WAV for editing, convert MP3 to WAV. The file will be larger, but compatible with any audio editor.
The Bottom Line
WAV is the gold standard for uncompressed audio. It's big, it's simple, and it's perfect. Use it for recording and editing. Convert to something smaller when you need to share.
Every professional audio workflow starts with WAV. That hasn't changed in thirty years.