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FLAC Converter [Mac OSX, Windows] - AuI ConverteR 48x44

AuI ConverteR 48x44 is an audiophile FLAC converter (Mac OSX, Windows) to/from mp3, FLAC, WAV, AIFF, m4a, DSF and other popular formats. Safe CD ripper. SACD ISO to FLAC is supported. Split CUE+audio file to FLAC. FLAC up to 32-bit / 384 kHz conversion.
Download for free with full audio processing quality.


Author: Yuri Korzunov,
Audiophile Inventory's developer with 25+ year experience in digital signal processing,
author of the articles that make audio easy for beginners

Audiophile FLAC, DSF, DFF..., CUE Converter
to FLAC, WAV, DSF, mp3, DSF, DFF,...

FLAC Converter for Mac OSX, Windows

    for playback music on:
        digital audio player (DAP),
        media server/streamer,
        car stereo.

    FLAC resolution up to 32 bit | 352/384 kHz
    Multichannel and stereo
    Bit-perfect converting and splitting
        (without quality losses) for unaltered sample rate
    Accurate split with 1 sample precision
    Clickless technologies
    Auto and manual artwork assigning to target files
    Easy-to-use software

WARNING: DVD-audio/video, Blu-Ray, DVD/BluRay/CD ISO are NOT supported.
For Modula-R version, SACD ISO, DSF, DFF are supported in proper configurations.
For ISO tracks, DSF, DFF longer than 3 minutes, FREE edition mutes 2-second silence in the output middle and has other restrictions
Free version has processing sound quality identical commercial editions.

How do I convert FLAC files on a Mac?

To convert FLAC files on Mac:

  1. Start AuI ConverteR software.
  2. Push Open file button and select FLAC or file with other available extension.
  3. At the main window, select target file type, bit depth, sampling rate.
  4. Push Start button and wait for the conversion to end.
  5. Look at the converted file(s) into the target directory.



Watch and share: How to split CUE FLAC



Format codecs SACD ISO, DFF, mp3, alac, ... automatically download and install FREE codecs from the Internet (during downloading of codecs need an internet connection).

The conversion software has several functional/price options. You can choose one of the editions that have optimal options.


Key features

  • Studio sound quality.
  • Friendly interface, "ready from a box".
  • Input formats:
  • mp3, ogg, m4a, WMA, other.
  • Output formats:
  • DSF,, DFF
  • mp3, ogg, m4a, WMA, other.
  • Faster parallel processing (1 file per 1 core)
  • Seamless (gapless) processing of albums as a continuous stream
  • Auto level normalization of album tracks
  • Metadata editor FLAC, WAV, AIFF, DSF
  • Safe CD ripper
  • Fast friendly technical support.





AuI ConverteR has several price/functionality options that allow saving your budget for the required functionality. You can expand Modula-R abilities later by purchasing new modules. Unlimited-time license, major updates (... 10.x > 11.x > 12.x > ... versions) are paid.

WARNING: Modula-R modules (parts of AuI ConverteR’s functionality) are NOT compatible with Free version.
ADD-ON modules work with certain CORE modules only (see details).
The module is license key received in order email. To activate module functionality, enter its key in Modula-R executable.
All "Modula-R" modules together have "PROduce-RD"'s abilities.
Full-featured "PROduce-RD" version is like a discount on price of full module kit of "Modula-R" version.

To expand functionality, module(s) (compatible with purchased major version number) may be ordered separately.
Modula-R license cannot be replaced with PROduce-RD.

* All prices on this page are in U.S. dollars without V.A.T. and other applicable taxes and fees. The prices are recommended. Information on this page is not a public offer.


Sound quality issues

FLAC converter to FLAC, WAV, AIFF, ALAC provide lossless format transformation without altering musical content.
Here "lossless" mean "identical binary content before and after conversion".

Resampling, bit depth, gain altering are the lossy processing.

FLAC compression has several levels (size vs. compressing speed). Generally, the middle level is recommended.



Read more about FLAC

  1. FLAC format issues >
  2. FLAC to DSF Audio Converter >
  3. 32 bit FLAC Audio Converter >
  4. FLAC CUE Splitter >
  5. Uncompressed FLAC >




  1. Reasmpler sound quality comparison
  2. DSD-to-PCM 2015
  3. FLAC specification



Frequently Asked Questions

What is the best FLAC converter for Mac?

The best FLAC converter for Mac is individual choice.



How do I convert FLAC to Apple Lossless on Mac?

You can convert FLAC to Apple Lossless files on Mac according to the guide...