CONVERT W64 → TTA (W64 to TTA)
Fast, secure W64 to TTA conversion. No registration required.
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HOW TO CONVERT W64 → TTA
Provide the audio file
Drag the W64 onto the uploader. Files up to 25 MB run on the free tier without registration; paid plans go up to 2 GB.
ffmpeg handles the conversion
Our ffmpeg-based pipeline reads sample rate and channel layout, then writes a matching TTA with ID3 tags intact.
Save the output
Click to download the TTA. Batch uploads are bundled into a ZIP for single-click retrieval.
Why this pair exists — W64 is an audio format with specific trade-offs between file size, bitrate flexibility, and device support. Ergo, the TTA route. A W64 to TTA conversion is typically about compatibility: some players refuse W64, many accept TTA. The audio payload makes the round trip with minimal artefacts when bitrate is left at sensible defaults. Drop a W64 file into the uploader and the TTA comes back in seconds. In practice W64 is an audio format with specific trade-offs between file size, bitrate flexibility, and device support. On the other end, TTA is the True Audio lossless codec, fast to decode on low-power devices.
Why convert W64 to TTA
Moving from W64 to TTA usually buys compatibility or a friendlier file size. For spoken-word content the difference is inaudible; for high-resolution music pick the highest bitrate the TTA codec supports to avoid compounding compression.
W64 vs TTA — Technical specifications
Side-by-side comparison of the technical details.
W64
- MIME type
- audio/x-w64
- Extension
- .w64
- Max size
- 2^64 bytes
- Relative
- RF64 (EBU 64-bit WAV)
- MIME Type
- audio/x-w64
- Category
- Audio Files
- Full Name
- Sony Wave64
- Conversion Engine
- FFMPEG
TTA
- MIME type
- audio/x-tta
- Extension
- .tta
- MIME Type
- audio/x-tta
- Category
- Audio Files
- Full Name
- True Audio Lossless
- Conversion Engine
- FFMPEG
- Algorithm
- Fixed prediction + adaptive Rice coding
- License
- LGPL
| Specification | W64 | TTA |
|---|---|---|
| MIME type | audio/x-w64 | audio/x-tta |
| Extension | .w64 | .tta |
| Max size | 2^64 bytes | — |
| Relative | RF64 (EBU 64-bit WAV) | — |
| MIME Type | audio/x-w64 | audio/x-tta |
| Category | Audio Files | Audio Files |
| Full Name | Sony Wave64 | True Audio Lossless |
| Conversion Engine | FFMPEG | FFMPEG |
| Algorithm | — | Fixed prediction + adaptive Rice coding |
| License | — | LGPL |
W64 vs TTA — Strengths and limitations
What each format does best, and where it falls short.
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.
TTA Strengths
- Lossless bit-exact reproduction.
- Fast, low-memory decoding.
- Open-source reference.
- Cue-sheet support.
Limitations
- Compression ratio worse than FLAC.
- Niche tooling.
- Hardware support died with 2000s DAP era.
Quality & Compatibility
Sample rate, channel layout and bit depth are preserved by default: a 44.1 kHz stereo W64 becomes a 44.1 kHz stereo TTA. Metadata — title, artist, album, cover art — travels where both formats support it. Protected DRM content cannot be converted legally and is rejected.
Tips for Best Results
- Check the podcast host specification before choosing bitrate — some mandate CBR 64 kbps, others accept VBR up to 192 kbps.
- Preserve ID3 tags by editing them before conversion; Mp3tag and MusicBrainz Picard handle round-tripping cleanly.
- If the W64 is 24-bit studio audio, the TTA at 16-bit is sufficient for listening; higher is wasted on consumer playback gear.
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 TTA 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 W64 container to the TTA container automatically where both formats support them. If a tag field has no TTA equivalent, it is dropped silently. Use any tag editor (Mp3tag, MusicBrainz Picard) to fine-tune afterwards.
Sony Wave64
Source 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.
True Audio Lossless
Target formatTTA (True Audio) is an open-source lossless audio codec that provides real-time lossless compression with hardware-friendly decoding. It achieves compression ratios similar to FLAC while maintaining very low CPU requirements during playback.
Going the other way? Convert TTA back to W64 with the same engine.
Common Use Cases
Share across platforms
Send TTA files to anyone without worrying about whether they have the right software for W64.
Embed in documents
Drop TTA output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
TTA often produces smaller files than W64 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.
W64 vs TTA — Typical file sizes
Approximate file sizes for common scenarios.
- 1-hour 24-bit 48 kHz mono ~620 MB
- 48-hour field recording ~30 GB
- 3-min song (CD) 20-25 MB
- Full CD album 250-350 MB
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Related comparisons
See these formats side by side to understand which fits your use case best.
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