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

FLAC converter

AuI ConverteR 48x44 is a high-quality music file converter for Mac and Windows. It handles various formats like mp3, FLAC, WAV, AIFF, and more. Safely rip CDs and convert SACD ISO to FLAC. Plus, it splits CUE+audio files and supports up to 32-bit / 384 kHz FLAC conversion. Are you professional in music production or discerning enthusiast of home audio? Download the converter for free and check out top-notch audio 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


How do I convert FLAC files?

To convert various FLAC files on Mac and Windows:

  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


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. In batch conversion FREE version mutes 2 seconds in the output middle for second and the subsequent files.
Free version has processing sound quality identical commercial editions.


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 functionality options. You can choose one of the editions that have optimal options.


Key features

Audiophile FLAC Converter, that supports: mp3, WAV, ALAC, m4a(AAC), CAF, AIFF, DSF, DFF..., CUE files.

The application is crafted for playback music on:

  • digital audio player (DAP),
  • media server/streamer,
  • car stereo.

FLAC converter 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<./li>
  • Easy-to-use software.
  • Fast friendly technical support.



Configuration of AuI ConverteR for FLAC conversion


AuI ConverteR is a configurable software that lets you choose the features you need and pay only for them. A "module" is a part of AuI ConverteR's functionality that you can buy separately. You can buy new modules later to enhance your Modula-R major version (details). Each module is a license key that you get by email and enter in the software. A "major update" is a change in the first version number of the software version (for example, from 10.x to 11.x) and it is not free. However, your license is unlimited-time, which means you can use the software as long as you want without any subscription fees. (details)

IMPORTANT: The Free version of AuI ConverteR does not work with any modules. You need to buy a CORE module first, and then you can add other modules that are compatible with it (details). If you buy all the modules, you get the same features as the PROduce-RD version, which is a complete and cheaper package. You cannot exchange your Modula-R license for a PROduce-RD license.

* 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 sound quality here...


DSD files to FLAC


Other FLAC issues


CD ripper to FLAC


Edit FLAC metadata


Related articles

  1. What is FLAC format >
  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



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The best FLAC converter for Mac is individual choice.



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