MP2 vs WAV
A detailed comparison of MPEG Layer 2 Audio and WAV Audio — file size, quality, compatibility, and which format to choose for your workflow.
MPEG Layer 2 Audio
Audio FilesMP2 (MPEG-1 Audio Layer II) is an audio compression standard that preceded MP3. It remains the standard audio format for digital radio broadcasting (DAB) and digital television (DVB) due to its lower encoding delay and better error resilience.
About MP2 filesWAV Audio
Audio FilesWAV is an uncompressed audio format that preserves full audio fidelity. Files are large but provide lossless, CD-quality sound. It is the standard working format in audio production and editing.
About WAV filesStrengths 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.
WAV Strengths
- Bit-perfect, uncompressed audio — the professional studio standard.
- Universally supported for playback, editing, and analysis.
- No re-encoding penalty — edit and save repeatedly with zero quality loss.
- Simple internal structure — easy to parse programmatically.
- Supports up to 32-bit float and 384 kHz sample rates.
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.
WAV Limitations
- Enormous file sizes — 10 MB per minute for CD-quality stereo.
- 4 GB size limit for standard WAV (RF64/W64 variants extend it but break compatibility).
- No native support for cover art or rich metadata.
- Impractical for casual listening or bandwidth-constrained delivery.
Technical Specifications
| Specification | MP2 | WAV |
|---|---|---|
| MIME type | audio/mpeg | audio/wav |
| 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 | — |
| Container | — | RIFF |
| Typical codec | — | PCM (uncompressed) |
| Bit depth | — | 8, 16, 24, 32 bit integer or float |
| Sample rate | — | Up to 384 kHz |
| Max size | — | 4 GB (standard WAV), unlimited (RF64 / W64) |
Typical File Sizes
MP2
- DAB radio stream (128 kbps) 1 MB/min
- DVD audio track (192 kbps) 1.4 MB/min
- 3-min song at 192 kbps 4.3 MB
WAV
- Song (4 min, CD quality) 40 MB
- Voice memo (1 min, 16-bit 44.1 kHz) 10 MB
- Studio master (1 min, 24-bit 96 kHz) 33 MB
- Field recording (1 hour, 24-bit 48 kHz) 1 GB
Ready to convert?
Convert between MP2 and WAV online, free, and without installing anything. Encrypted upload, automatic deletion after 2 hours.
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.
WAV (Waveform Audio File Format) is an uncompressed audio format co-developed by Microsoft and IBM in 1991. It stores raw PCM audio data, providing studio-quality sound at the cost of large file sizes.
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.
WAV files play on virtually every media player and operating system including VLC, Windows Media Player, iTunes, Audacity, and all DAWs (Digital Audio Workstations) like Pro Tools and Logic Pro.
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.