Convert TTA to CAF
Max file size 100mb.
TTA vs CAF Format Comparison
| Aspect | TTA (Source Format) | CAF (Target Format) |
|---|---|---|
| Format Overview |
TTA
True Audio
True Audio (TTA) is a free, open-source lossless audio codec created in 2004. It uses a simple adaptive prediction filter followed by entropy coding to achieve lossless compression ratios comparable to FLAC and APE. TTA is designed for simplicity and speed, offering real-time encoding and decoding with minimal CPU usage, making it well suited for hardware players and embedded devices. Lossless Modern |
CAF
Core Audio Format
Core Audio Format (CAF) is a flexible audio container developed by Apple in 2005 for macOS and iOS. CAF can store any audio codec supported by Core Audio, including PCM, AAC, ALAC, and others. It removes the 4 GB file size limitation of WAV and AIFF, making it ideal for long-duration recordings and professional macOS audio workflows. Lossless Standard |
| Technical Specifications |
Sample Rates: 8 kHz - 192 kHz
Bit Depth: 8, 16, 24-bit integer Channels: Mono, Stereo, Multichannel (up to 6) Codec: TTA1 (adaptive prediction + Rice coding) Container: Native TTA (.tta), Matroska (.mka) |
Sample Rates: Any rate supported by contained codec
Bit Depth: 8, 16, 24, 32-bit (PCM mode) Channels: Mono to multichannel (unlimited) Codec: Any Core Audio codec (PCM, AAC, ALAC) Container: CAF (.caf) |
| Audio Encoding |
TTA uses an adaptive prediction filter that models audio signals and encodes residuals with Rice/Golomb entropy coding for bit-perfect lossless compression: # Encode WAV to TTA lossless ffmpeg -i input.wav -codec:a tta output.tta # Encode with specific sample format ffmpeg -i input.wav -codec:a tta \ -sample_fmt s16 output.tta |
CAF is a flexible container wrapping any Core Audio codec; PCM mode stores uncompressed audio without file size limits: # PCM audio in CAF container ffmpeg -i input.wav -codec:a pcm_s16le \ -f caf output.caf # ALAC lossless in CAF container ffmpeg -i input.wav -codec:a alac \ -f caf output.caf |
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| Version History |
Introduced: 2004 (Alexander Djourik)
Current Version: TTA1 (single-stream) Status: Stable, maintained open-source Evolution: TTA1 (2004) → libtta (C library) → FFmpeg integration |
Introduced: 2005 (Apple, Mac OS X 10.4)
Current Version: CAF (Core Audio Format 1.0) Status: Stable, maintained as part of Core Audio Evolution: CAF 1.0 (2005) → continuous Core Audio updates |
| Software Support |
Media Players: foobar2000, VLC, AIMP, Deadbeef, Rockbox
Encoders: TTA encoder, FFmpeg, foobar2000 Mobile: Rockbox-based players, limited native support DAWs: Limited - typically requires conversion first Hardware: Rockbox-compatible players, some Cowon/iRiver |
Media Players: QuickTime, VLC, iTunes/Music
DAWs: Logic Pro, GarageBand, Final Cut Pro Mobile: iOS native, limited Android Development: Xcode, Core Audio API, AVFoundation Encoders: FFmpeg, afconvert (macOS) |
Why Convert TTA to CAF?
Converting TTA to CAF transforms your True Audio lossless files into the Core Audio Format format while preserving every audio sample bit-perfectly. Since both TTA and CAF are lossless codecs, this conversion is a pure container and codec change with zero quality loss. The resulting CAF files will be mathematically identical to the original audio captured in TTA.
TTA (True Audio) is a fast lossless codec popular among audiophiles who value encoding speed, but CAF offers advantages in terms of software ecosystem and device compatibility. While TTA delivers excellent compression ratios with minimal CPU usage, CAF is supported by a broader range of applications, hardware players, and streaming services, making your music collection more accessible.
The conversion process decodes the TTA audio stream and re-encodes it into CAF format. Because both formats are lossless, no audio information is added or removed. File sizes may vary slightly due to differences in compression algorithms between TTA and CAF, but the audio content remains identical.
This conversion is particularly useful when migrating a TTA-based music library to the more widely supported CAF format, or when your playback software or hardware does not recognize TTA files. After conversion, you retain full audio quality while gaining broader compatibility across your devices and applications.
Key Benefits of Converting TTA to CAF:
- Lossless Quality: Bit-perfect conversion with zero audio quality loss from TTA to CAF
- Wider Compatibility: CAF is supported by more software, hardware, and streaming platforms
- Metadata Preservation: Audio tags and metadata transferred to CAF format
- Identical Audio: Output is mathematically identical to the original TTA source
- Future Flexibility: CAF files can be converted to any other format without quality loss
- Library Migration: Seamlessly transition from TTA to CAF-based music collections
- No Re-Ripping Needed: Preserve your existing lossless library without returning to original CDs
Practical Examples
Example 1: Music Library Migration
Scenario: An audiophile has a large TTA music collection but their new streaming setup supports CAF natively and not TTA.
Source: album_track01.tta (4 min, 16-bit/44.1 kHz, 28 MB) Conversion: TTA → CAF (lossless) Result: album_track01.caf (27 MB) Workflow: 1. Convert TTA → CAF for player compatibility 2. Verify bit-perfect conversion via checksums 3. Import CAF library into music server 4. Stream losslessly to connected devices 5. Keep TTA originals as backup archive
Example 2: Audio Production Preparation
Scenario: A sound engineer receives stem files in TTA format and needs to import them into a DAW which does not support TTA directly.
Source: vocal_stem.tta (6 min, 24-bit/48 kHz, 85 MB) Conversion: TTA → CAF (lossless, 24-bit/48 kHz) Result: vocal_stem.caf (82 MB) Benefits: - Zero quality loss - bit-perfect audio preserved - Compatible with professional DAWs and editors - Maintains 24-bit/48 kHz high-resolution quality - Ready for mixing, mastering, and processing - Consistent format with other project stems
Example 3: Archival Format Standardization
Scenario: A digital archive is standardizing on CAF for long-term audio preservation and needs to convert legacy TTA files.
Source: archive_recording.tta (45 min, 16-bit/44.1 kHz, 310 MB) Conversion: TTA → CAF (lossless) Result: archive_recording.caf (305 MB) Archive requirements met: - Lossless conversion preserves original audio - CAF widely supported for long-term access - Metadata migrated to CAF tagging format - Standardized format across entire archive - Future-proof for decades of preservation
Frequently Asked Questions (FAQ)
Q: Does converting TTA to CAF lose any audio quality?
A: No. Both TTA and CAF are lossless formats, so the conversion is bit-perfect with zero quality loss. The output audio is mathematically identical to the TTA source.
Q: Will the file size change after converting TTA to CAF?
A: File sizes will be similar since both are lossless, though slight differences may occur due to different compression algorithms. CAF files may be slightly larger or smaller depending on the audio content.
Q: Why convert from TTA to CAF instead of another format?
A: CAF (Core Audio Format) offers excellent lossless compression with wider software and hardware support than TTA.
Q: Is TTA a good format for archival purposes?
A: TTA is an excellent archival format providing bit-perfect lossless compression with fast encoding speed. However, FLAC has a larger ecosystem for long-term archival. TTA's advantage is its simplicity and processing speed for large-scale batch tasks.
Q: Can I convert TTA back to CAF after converting CAF to TTA?
A: Yes. Since both formats are lossless, you can freely convert between TTA and CAF without any quality loss.
Q: What software can play TTA files?
A: TTA is supported by foobar2000, VLC, AIMP, Deadbeef, and Rockbox-based portable players. While not as universal as FLAC, TTA has good coverage among enthusiast-oriented music software.
Q: How fast is the TTA to CAF conversion?
A: TTA decodes very quickly due to its simple algorithm, typically 10-20x faster than real-time. The overall speed depends on the CAF encoding complexity. Most files convert in seconds on modern hardware.
Q: Can I batch convert my entire TTA library to CAF?
A: Yes. Batch conversion is fully supported. Our converter processes each TTA file individually, converting it to CAF with your chosen settings. TTA's fast decoding makes batch conversion of large libraries efficient.