.TTA File Format

Introduction

True Audio (TTA) is a free, open-source lossless audio codec. It aims for fast, simple encoding and decoding rather than the smallest files, and was designed to be easy to use in hardware players. It is less common than FLAC, WavPack or Monkey’s Audio.

Structure

A TTA file starts with a 22-byte header: the signature TTA1, the audio format, the channel count, bits per sample, the sample rate, the total number of samples and a CRC-32 of the header. A seek table follows, giving the size of every frame, with its own CRC-32. Then come the frames, each about one second of audio and ending with a CRC-32. Numbers are little-endian. Tags, ID3 or APEv2, may be added at the start or end of the file.

Links