MP2 vs WV
A detailed comparison of MPEG Layer 2 Audio and WavPack Audio — file size, quality, compatibility, and which format to choose for your workflow.
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Technical Specifications
| Specification | .MP2 | .WV |
|---|---|---|
| MIME type | audio/mpeg | audio/x-wavpack |
| Extensions | .mp2, .m2a, .mpa | — |
| Standard | ISO/IEC 11172-3 Layer II | — |
| Sample rates | 16, 22.05, 24, 32, 44.1, 48 kHz | — |
| Bitrates | 32-384 kbps | — |
| Extension | — | .wv (main), .wvc (correction) |
| Modes | — | Lossless, Hybrid lossy+correction, 32-bit float |
| License | — | BSD-style |
Strengths Comparison
.MP2 Strengths
- Robust against transmission errors — designed for broadcast.
- Lower CPU demand than MP3 — mattered for 1990s receivers.
- Universal playback via every audio player.
- ~30 years of broadcast field experience.
.WV Strengths
- Hybrid lossy/lossless mode.
- Supports DSD, 32-bit float, multichannel.
- Competitive compression vs FLAC.
- Active maintenance since 1998.
Limitations
.MP2 — Limitations
- Worse compression than MP3 at the same quality.
- Largely obsolete for new content.
- Patent licensing never fully cleared (though most expired by 2017).
- Consumer ecosystems chose MP3 and never came back.
.WV — Limitations
- Small ecosystem.
- Hybrid mode complexity.
- Hardware support limited vs FLAC.
Frequently Asked Questions
MP2 (MPEG Layer 2 Audio) is an audio file format used to store sound recordings — music, voice, podcasts, sound effects. The format defines how the audio samples are compressed (or stored raw), what bitrates are supported, and how metadata such as title, artist, album, and cover art is embedded. It is part of the audio files family.
WV (WavPack Audio) is an audio file format used to store sound recordings — music, voice, podcasts, sound effects. The format defines how the audio samples are compressed (or stored raw), what bitrates are supported, and how metadata such as title, artist, album, and cover art is embedded. It is part of the audio files family.
VLC, foobar2000, and the default media players on Windows and macOS handle MP2 natively. On mobile, iOS Music and Android media apps vary in their support — popular formats work everywhere; niche ones may need a dedicated app. If playback fails on a device, converting to MP3 or AAC usually solves it.
VLC, foobar2000, and the default media players on Windows and macOS handle WV natively. On mobile, iOS Music and Android media apps vary in their support — popular formats work everywhere; niche ones may need a dedicated app. If playback fails on a device, converting to MP3 or AAC usually solves it.
Upload the MP2 to KaijuConverter and pick MP3, WAV, FLAC, AAC, OGG, or any other target. Our FFmpeg pipeline decodes the audio and re-encodes to the target format at sensible default bitrates (VBR ~190 kbps for music, 96 kbps for speech). Metadata and cover art travel with the audio where both formats support them.
MP2 can be lossy or lossless depending on the specific variant. Lossy variants (smaller files) discard some audio detail during compression in ways tuned to be inaudible; lossless variants preserve every sample exactly but produce larger files. For distribution, lossy at high bitrate is standard; for archival, lossless wins.
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