CONVERT VOC → TTA (VOC to TTA)
Fast, secure VOC to TTA conversion. No registration required.
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HOW TO CONVERT VOC → TTA
Give us the VOC
Select a VOC (or several for batch). We read the header to pick decoder settings automatically.
Re-encode to TTA
The audio is decoded, optionally resampled, and re-encoded as TTA at transparent default bitrate.
Retrieve your TTA
Grab the download as soon as it is ready. Typical jobs finish in seconds for short clips.
VOC is the Creative Labs Voice format from the Sound Blaster era. Reaching a TTA from there is one hop. Moving audio from VOC into TTA is a routine job for podcasters, musicians, transcribers and anyone who needs a file to play somewhere the original would not. KaijuConverter reads the VOC once, re-encodes through FFmpeg at the bitrate you choose, and returns a polished TTA in seconds. One more beat. VOC is the Creative Labs Voice format from the Sound Blaster era. Receiving format: TTA is the True Audio lossless codec, fast to decode on low-power devices.
Why convert VOC to TTA
The motivation for a VOC → TTA conversion is almost always practical: a playback device, hosting platform or editing suite that insists on TTA. The audio quality trade-off is controllable via bitrate; the compatibility win is immediate and unambiguous.
VOC vs TTA — Technical specifications
Side-by-side comparison of the technical details.
VOC
- MIME type
- audio/x-voc
- Extension
- .voc
- Codecs
- PCM 8/16-bit, ADPCM
- Hardware origin
- Sound Blaster Pro (1991)
- MIME Type
- audio/x-voc
- Category
- Audio Files
- Full Name
- Creative Voice
- 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 | VOC | TTA |
|---|---|---|
| MIME type | audio/x-voc | audio/x-tta |
| Extension | .voc | .tta |
| Codecs | PCM 8/16-bit, ADPCM | — |
| Hardware origin | Sound Blaster Pro (1991) | — |
| MIME Type | audio/x-voc | audio/x-tta |
| Category | Audio Files | Audio Files |
| Full Name | Creative Voice | True Audio Lossless |
| Conversion Engine | FFMPEG | FFMPEG |
| Algorithm | — | Fixed prediction + adaptive Rice coding |
| License | — | LGPL |
VOC vs TTA — Strengths and limitations
What each format does best, and where it falls short.
VOC Strengths
- Retro-gaming archive format.
- Supported by DOSBox and SoX.
- Block-based structure allows streaming.
Limitations
- Legacy — no new content since mid-1990s.
- Limited sample rates (up to 44.1 kHz).
- No metadata.
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
The TTA output is as good as the VOC source allows. If the VOC was encoded at 96 kbps, the TTA cannot reconstruct detail the encoder already dropped; picking a very high TTA bitrate just produces a larger file. Match TTA bitrate to the VOC quality for the best balance.
Tips for Best Results
- Sample-rate mismatches between VOC 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 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 VOC 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.
Creative Voice
Source formatVOC (Creative Voice) is an audio file format created by Creative Labs for Sound Blaster sound cards. It was a dominant PC audio format in the DOS gaming era, supporting multiple data blocks with different sample rates within a single file.
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 VOC 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 VOC.
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 VOC 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.
VOC vs TTA — Typical file sizes
Approximate file sizes for common scenarios.
- DOS game sound effect 5-50 KB
- Short speech sample 30-300 KB
- 3-min song (CD) 20-25 MB
- Full CD album 250-350 MB
Need to Convert Gigabyte Archives or Mass Folders?
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Related comparisons
See these formats side by side to understand which fits your use case best.
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