CONVERT TTA → W64 (TTA to W64)
Fast, secure TTA to W64 conversion. No registration required.
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HOW TO CONVERT TTA → W64
Upload the TTA
Drop or select your TTA file. The upload is encrypted and the file is queued for conversion.
Transcode via FFmpeg
FFmpeg decodes the TTA stream to PCM internally, then re-encodes as W64 at the bitrate you select.
Download the W64
The W64 is delivered as a direct download; metadata and cover art transfer automatically where possible.
Setup: TTA is the True Audio lossless codec, fast to decode on low-power devices. Goal: an interchangeable W64. Need a W64 version of a TTA recording for a podcast host, audio book platform or DAW that refuses the original container? Drop the file above and our encoder produces a clean W64 you can drag straight into the destination tool. Metadata such as title, artist and cover art travels with the audio. A quick refresher — TTA is the True Audio lossless codec, fast to decode on low-power devices. By contrast, W64 is an audio format with specific trade-offs between file size, bitrate flexibility, and device support.
Why convert TTA to W64
True Audio Lossless is great in its own niche, but Sony Wave64 is either more universally playable or better suited to the device you are targeting. Converting lets you ship the audio without asking listeners to install a codec. The loss in quality between the two is negligible at sensible bitrates.
TTA vs W64 — Technical specifications
Side-by-side comparison of the technical details.
TTA
- MIME type
- audio/x-tta
- Extension
- .tta
- Algorithm
- Fixed prediction + adaptive Rice coding
- License
- LGPL
- MIME Type
- audio/x-tta
- Category
- Audio Files
- Full Name
- True Audio Lossless
- Conversion Engine
- FFMPEG
W64
- MIME type
- audio/x-w64
- Extension
- .w64
- MIME Type
- audio/x-w64
- Category
- Audio Files
- Full Name
- Sony Wave64
- Conversion Engine
- FFMPEG
- Max size
- 2^64 bytes
- Relative
- RF64 (EBU 64-bit WAV)
| Specification | TTA | W64 |
|---|---|---|
| MIME type | audio/x-tta | audio/x-w64 |
| Extension | .tta | .w64 |
| Algorithm | Fixed prediction + adaptive Rice coding | — |
| License | LGPL | — |
| MIME Type | audio/x-tta | audio/x-w64 |
| Category | Audio Files | Audio Files |
| Full Name | True Audio Lossless | Sony Wave64 |
| Conversion Engine | FFMPEG | FFMPEG |
| Max size | — | 2^64 bytes |
| Relative | — | RF64 (EBU 64-bit WAV) |
TTA vs W64 — Strengths and limitations
What each format does best, and where it falls short.
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.
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.
Quality & Compatibility
Lossy-to-lossy transcoding (most cross-format audio jobs) loses a tiny amount of quality on each pass — usually inaudible at our default VBR ~190 kbps for music or 96 kbps for speech. Lossy-to-lossless conversions freeze the existing quality but cannot improve it; lossless-to-lossy is only as good as the target bitrate you choose.
Tips for Best Results
- Pick 128 kbps for podcasts and voice, 192–256 kbps for music, 320 kbps only if the audio will be edited further downstream.
- Keep the TTA master alongside the W64 — re-encoding a lossy format twice accumulates audible artefacts.
- For mono voice content, convert to mono W64 explicitly to halve file size without any quality loss.
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 TTA 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.
True Audio Lossless
Source 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.
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.
Going the other way? Convert W64 back to TTA with the same engine.
Common Use Cases
Share across platforms
Send W64 files to anyone without worrying about whether they have the right software for TTA.
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 TTA 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.
TTA vs W64 — Typical file sizes
Approximate file sizes for common scenarios.
- 3-min song (CD) 20-25 MB
- Full CD album 250-350 MB
- 1-hour 24-bit 48 kHz mono ~620 MB
- 48-hour field recording ~30 GB
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Related comparisons
See these formats side by side to understand which fits your use case best.
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