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WAV → W64
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Fast, secure WAV to W64 conversion. No registration required.
Opening note — WAV is Microsoft's uncompressed PCM container — the studio master format on Windows. The W64 you want is two clicks away. Turn your WAV audio into a widely-supported W64 file. The conversion happens server-side through FFmpeg — the same engine behind every major audio editor — so the output plays cleanly on phones, car stereos, DJ software and streaming tools. One more beat. WAV is Microsoft's uncompressed PCM container — the studio master format on Windows. Receiving format: W64 is an audio format with specific trade-offs between file size, bitrate flexibility, and device support.
WAV Audio
Source formatWAV 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.
Sony Wave64
Target formatWave64 (W64) is an extension of the WAV format developed by Sony that breaks the 4 GB file size limit of standard WAV by using 64-bit chunk sizes. It is used in professional audio production for very long or multi-channel recordings.
Why convert WAV to W64
The motivation for a WAV → W64 conversion is almost always practical: a playback device, hosting platform or editing suite that insists on W64. The audio quality trade-off is controllable via bitrate; the compatibility win is immediate and unambiguous.
HOW TO CONVERT
WAV → W64
Give us the WAV
Select a WAV (or several for batch). We read the header to pick decoder settings automatically.
Re-encode to W64
The audio is decoded, optionally resampled, and re-encoded as W64 at transparent default bitrate.
Retrieve your W64
Grab the download as soon as it is ready. Typical jobs finish in seconds for short clips.
Common Use Cases
Share across platforms
Send W64 files to anyone without worrying about whether they have the right software for WAV.
Embed in documents
Drop W64 output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
W64 often produces smaller files than WAV for web, email and storage.
Archive & future-proof
Store in a widely-supported format that will still open on future operating systems without legacy plugins.
WAV vs W64 — Strengths and limitations
What each format does best, and where it falls short.
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
- 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.
W64 Strengths
- Unlimited file size (64-bit chunks).
- Professional DAW compatibility.
- Bit-exact lossless.
Limitations
- Less universal than WAV.
- Niche — only matters for very large sessions.
- Competes with RF64.
WAV vs W64 — Technical specifications
Side-by-side comparison of the technical details.
WAV
- MIME type
- audio/wav
- 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)
W64
- MIME type
- audio/x-w64
- Max size
- 2^64 bytes
- Extension
- .w64
- Relative
- RF64 (EBU 64-bit WAV)
| Specification | WAV | W64 |
|---|---|---|
| MIME type | audio/wav | audio/x-w64 |
| 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) | 2^64 bytes |
| Extension | — | .w64 |
| Relative | — | RF64 (EBU 64-bit WAV) |
WAV vs W64 — Typical file sizes
Approximate file sizes for common scenarios.
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
W64
- 1-hour 24-bit 48 kHz mono ~620 MB
- 48-hour field recording ~30 GB
Quality & Compatibility
The W64 output is as good as the WAV source allows. If the WAV was encoded at 96 kbps, the W64 cannot reconstruct detail the encoder already dropped; picking a very high W64 bitrate just produces a larger file. Match W64 bitrate to the WAV quality for the best balance.
Tips for Best Results
- Sample-rate mismatches between WAV and target device (48 kHz phone output from a 44.1 kHz track) are handled automatically; no manual resampling needed.
- For audiobook delivery, match the platform spec exactly — ACX requires 192 kbps CBR 44.1 kHz stereo, for example.
- Batch-convert an album in one job so every track shares identical encoder settings and loudness normalisation.
Frequently Asked Questions
Lossy-to-lossy conversions (most combinations) re-compress the audio, which technically introduces some loss. At a 192 kbps or higher target it is inaudible on normal equipment. Lossy-to-lossless conversions freeze the existing quality but cannot improve it; lossless-to-lossy transcodes are only as good as the target bitrate you choose.
For voice content (podcasts, audiobooks, lectures) 128 kbps is indistinguishable from higher bitrates. For music, 192-256 kbps covers most listening; 320 kbps is the ceiling for W64 and the right choice for audio you plan to edit further. Above that, prefer a lossless target instead.
Yes. Title, artist, album, year and cover art travel from the WAV container to the W64 container automatically where both formats support them. If a tag field has no W64 equivalent, it is dropped silently. Use any tag editor (Mp3tag, MusicBrainz Picard) to fine-tune afterwards.
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Read guideSecure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 60 minutes. We never read, share, or store your data.