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WAV is uncompressed — the only way to reduce size without converting to MP3/FLAC is to lower the sample rate or bit depth. For CD-quality music, 44.1 kHz 16-bit is already optimal.
WAV is uncompressed — every sample of the original recording is preserved, which makes files large. The main ways to compress WAV without changing format are: (1) lower the sample rate (e.g., 48 kHz → 44.1 kHz, or 96 kHz → 48 kHz), and (2) reduce the bit depth (e.g., 24-bit → 16-bit). This matters when a DAW expects WAV but size is a concern.
| Input format | WAV (PCM) |
| Output format | WAV (PCM) |
| Sample rates | 44.1, 48, 96 kHz |
| Bit depths | 16-bit or 24-bit |
| Typical reduction | 10-50% (depends on target) |
| Engine | libsndfile |
| Max file size | 50 MB per file |
| File retention | Auto-deleted after compression |
The compressor reads the WAV file, downsamples the audio to the target sample rate, and reduces the bit depth if selected. Output is a smaller WAV that still opens in any DAW or audio editor.
Downsampling from 96 kHz to 48 kHz is transparent for playback. Reducing bit depth from 24-bit to 16-bit is transparent for playback but loses editing headroom. For CD-quality audio, 44.1 kHz 16-bit is the standard.
| Level | Size reduction | Best for |
|---|---|---|
| Light (96 kHz → 48 kHz) | ~50% | Hi-Res → standard |
| Medium (48 kHz → 44.1 kHz) | ~8% | Broadcast → CD |
| High (24-bit → 16-bit) | ~33% | Studio → distribution |
| Maximum (96k/24 → 44.1k/16) | ~75% | Hi-Res → CD quality |
Last reviewed: 2026-10-01