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What is DSF audio file format?

Educational stuff

DSF (".dsf" name of file extension) is lossless audio file format contained 1-bit audio stream (audio data) under delta sigma modulation. The format of audio data used in modern audiophile 1-bit DSD DACs.

HD audio converter for DSF file format AuI ConverteR 48x44
(input DSF/DFF/ISO supported in Audiophil-E,
full DSF support in version PROduce-RD)
adjust sample rate and gain DSF


What is DSF audio file format

Supported sample rates:

2.8 MHz (CD sample rate 44100 Hz x 64, DSD64, D64),
5.6 MHz (DSD128, D128),
11.2 MHz (DSD256, D256),
22.5 MHz (DSD512, D512).

DSF format support multichannel configuration.

DSF audio files stores metadata (song name, artist name, artwork, etc.).

Alternative format is DFF audio file. In current ttime it don't support metatags.


How open DSF with audio players described here.

DSF and DFF files can playback with software as directly at 1-bit DSD DAC or with real-time conversion ("inline") at PCM DAC.


Conversion DSF to PCM and PCM to DSF applied with quality loss.

As rule, non-real-time conversion (via audio file converter) is not restricted by real-time performance of software / hardware and there possible applying more exact digital signal processing.


How convert DFF to DSF under Mac OS X, Windows, Linux read here.

You can learn more details of this format here, here, here.

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Audiophile converter
 CD ripper
DSF/FLAC metatag editor
AuI ConverteR 48x44


Released new studio audio converter AuI ConverteR 48x44 v. 6.2.2 CD ripper, ISO, DFF, DSF, WAV, FLAC, AIFF, ALAC. Fixed some bugs of displaying output formats and some minor bugs.

Released new studio audio converter AuI ConverteR 48x44 v. 6.2 CD ripper, ISO, DFF, DSF, WAV, FLAC, AIFF, ALAC. Apllied downmix multichannel to stereo (5.1 to 2.0) and translation of user interface to Russian and German (partitially yet).

Final of the article about click matter into DSF and PCM (FLAC, WAV, AIFF, etc.) files after ISO (1-bit audio) extraction. Clicks inside audio stuff.

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