True Audio (TTA) is a

lossless Lossless compression is a class of data compression that allows the original data to be perfectly reconstructed from the compressed data with no loss of information. Lossless compression is possible because most real-world data exhibits statistic ...

compressor for multichannel 8, 16 and 24 bits audio data. .tta is the extension to

filename A filename or file name is a name used to uniquely identify a computer file in a directory structure. Different file systems impose different restrictions on filename lengths. A filename may (depending on the file system) include: * name &nda ...

s of audio files created by the True Audio codec.

Codec overview

True Audio compresses up to 30% of the original, broadly similar to

FLAC FLAC (; Free Lossless Audio Codec) is an audio coding format for lossless compression of digital audio, developed by the Xiph.Org Foundation, and is also the name of the free software project producing the FLAC tools, the reference software p ...

and APE. It features a real-time encoding and decoding

algorithm In mathematics and computer science, an algorithm () is a finite sequence of rigorous instructions, typically used to solve a class of specific problems or to perform a computation. Algorithms are used as specifications for performing ...

and hardware compression support. As with most other lossless codecs,

plugins Plug-in, plug in or plugin may refer to: * Plug-in (computing) is a software component that adds a specific feature to an existing computer program. ** Audio plug-in, adds audio signal processing features ** Photoshop plugin, a piece of software t ...

are available for most media players. TTA performs

compression on multichannel 8, 16 and 24

bit The bit is the most basic unit of information in computing and digital communications. The name is a portmanteau of binary digit. The bit represents a logical state with one of two possible values. These values are most commonly represented a ...

data of uncompressed wav input files. The term "lossless" refers to the fact that such compression results in no data or quality loss; when decompressed, the audio file data are bit-identical to those of their originals. Compression ratios achieved by the TTA codec vary, depending on music type, but range from 30% to 70% of the original. The TTA lossless compressed audio format supports both

ID3v1 ID3 is a metadata container most often used in conjunction with the MP3 audio file format. It allows information such as the title, artist, album, track number, and other information about the file to be stored in the file itself. There are two ...

/ ID3v2 information tags and APEv2. The TTA lossless audio codec allows for the storage of up to 20 audio CDs worth of music on a single

DVD-R DVD recordable and DVD rewritable are optical disc recording technologies. Both terms describe DVD optical discs that can be written to by a DVD recorder, whereas only 'rewritable' discs are able to erase and rewrite data. Data is written ('b ...

, retaining the original CD quality audio, plus detailed information in the ID3 tag format. All TTA source code and binaries are freely available and distributed under GPL Open Source licenses.

Software support

Listed below is software that has TTA format support:

Hardware support

Audio players that run Rockbox support TTA.

References

External links

*
Project @ Sourceforge.Net
{{Compression Software Implementations Lossless audio codecs Free audio codecs Cross-platform software

Codec overview

Software support

Hardware support

See also

References

External links