Free online DFF to TTA converter

Source format: DFF

DFF is a DSD audio container format, most commonly associated with DSF/DFF files used for high-resolution music. It is used by audiophiles, music archivists, and some studio workflows that preserve original Direct Stream Digital recordings. DFF files often store very high sample-rate audio and are valued for their ability to keep the original DSD signal intact.

Typical uses include music playback, archiving SACD-derived audio, and transferring high-resolution recordings between compatible players and editors.

Target format: TTA

TTA stands for True Audio, a lossless audio compression format. It reduces file size without changing the audio data, so the decoded output is identical to the source PCM audio. TTA is appreciated for its small file sizes, fast decoding, and simple structure.

It is typically used for archiving music, storing lossless audio collections, and playback in software or devices that support the format.

How to perform the conversion

Converting DFF to TTA is not a direct format-to-format change in the usual sense, because DFF is DSD and TTA is lossless PCM compression. In practice, the audio must first be decoded from DSD to PCM, then encoded as TTA. The best desktop workflow is usually to use foobar2000 with the appropriate components, or a command-line toolchain that can decode DFF and encode TTA.

1. Install a player/converter that supports DFF input and TTA output, such as foobar2000 with conversion support.
2. Open the DFF file in the application.
3. Select the file and choose Convert or File → Convert.
4. Pick TTA as the output format if available, or choose a PCM intermediate format first if the program requires it.
5. Set the desired output folder and conversion settings.
6. Start the conversion and verify the resulting .tta file in a compatible player.

If your software cannot encode TTA directly from DFF, use a two-step process: decode .dff to a lossless PCM format such as .wav, then encode that file to .tta with a TTA-capable encoder. You can also convert the file on 101convert.com for free, without installing any software.

Notes on quality and limitations

DFF to TTA is not lossless in the strict DSD sense, because DSD audio must be converted to PCM before TTA compression. That means the result can be bit-perfect relative to the PCM intermediate, but it will not preserve the original DSD data stream. For most listening purposes this is acceptable, but it is important for archival workflows where the original DSD representation matters.

Another limitation is software support: DFF is less widely supported than common PCM formats, and TTA support is also not universal in modern players. If compatibility is your main goal, consider whether a more common lossless format such as FLAC would be a better target.