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Convert 32-bit FLAC WAV AIFF [Mac Windows]

High-res audio converter AuI ConverteR 48x44 provides 32 bit FLAC to/from FLAC, WAV, AIFF, DSF, DFF, ALAC, mp3,...  conversion. Sample rates 44.1, 48, 88.2, 96, 176.4, 192 kHz, 352.8, 384, 705.6, 768, 1411, 1536 kHz are supported (depends on format). The sampling-rate range is limited by format. FLAC has 384-kHz limitation. Multichannel files, export meta tags to target files are provided.


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

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How to convert 32bit FLAC

To convert from/to 32-bit FLAC file with high accuracy:

  1. Run AuI ConverteR 48x44

  2. Open audio file (32 bit FLAC or other) *
  3. Select:
    - target file format,
    - sample rate,
    - bit depth (up to 32bit for Free Lossless Audio Codec)*
  4. Select target directory in "Directory of output files" field of the main window of the software.
  5. Push Start button and wait of conversion end.


* 32-bit resolution support depends on configuration. Free version has limitations: 2-second silence in the middle of the output track.

** 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.

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.







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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.




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Conversion sound quality

Main priority of AuI ConverteR is sound quality.

Conversion to/from lossless PCM formats (Free Lossless Aaudio Codec, WAV, AIFF, ALAC, and others) without resampling and bit depth altering is just repacking. It doesn't change the sound quality.

But, some kinds of conversions have unavoidable losses. The converter program try minimize it as possible.



Watch and share: WAV and FLAC are binary identical or not?


Watch and share: How to split CUE FLAC

Resampling cause some losses. Resampling quality depend on implementations. Resamplers' comparison here

But for some cases resampling may be useful.

32 bit 384 kHz FLAC is maximal resolution of Free Lossless Audio Codec.


Read details here How to improve sound quality >


When digital signal is converted to analog into Digital Analog Converter (DAC), usually, audio data from music file is upsampled to higher sample rate for digital filtration before analog filtration.

Analog filtration restore analog signal from digital signal. We can say, that analog filter connect "stairs" of digital samples via uninterrupted flexible line.

But for analog filter it is very hardly to achieve deep filtration of aliases (distortions) during digital-analog conversion. Therefore before analog filtration, deep digital inline ("on fly") filtration is used.

Non-filtered ultrasound can cause playback audible noise at some software/hardware due intermodulations.

AuI ConverteR 48x44 makes deep filtering of aliases during offline (non-realtime) oversampling with "heaviest" math. Also it have optimized mode (used as default) to remove ultrasound.  Other words it allow to do "half of DAC's work" with very accurate offline algorithms.

Utrasound filtering may be switched off (Settings > General > set Filter mode in "Non-optimized...").

32 bit 384khz DAC allow to use maximal resolution of Free Lossless Audio Codec. However, 24 bit FLAC is more popular for download from stores. There is no univocal answer, need to convert lower bit depth to 32 bit or not.

Watch and share: Experiment with ultrasound filtering to fix audible noise

Read more:





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Read more about FLAC


FLAC 32 bit audio file converter





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Frequently Asked Questions

How do I change my 32 bit to 16 bit WAV?

To change 32 bit to 16 bit WAV, you can use audio converter software.


What is the best audio file converter?

Read article What is the best audio converter...


How do I convert an audio file to WAV?

To convert an audio file to .wav, you are need audio converter software...

Also, see how to convert audio file guide...


How do I change my 32 bit audio to 16 bit?

You can change 32 bit audio file to 16 bit according to the manual...

How do I change audio format?

To change audio format, you can use audio converter software...


How do I convert mp3 to 16-bit?

You can convert mp3 to 16-bit file with this software...


How do I convert my music to 16-bit?

To convert music tio 16 bit, use audio converter software.

Also, see how to convert music tutorials...


Can FLAC be 32 bit?

Yes. FLAC supports 32 bit.

Read how to convert from/to 32 bit FLAC...


Are FLAC files 24-bit?

Yes. FLAC provides 24 bit.

Read how to convert from/to 24 bit FLAC...


Are FLAC files 16-bit?

Yes. FLAC supports 16 bit resolution.


What bit rate is FLAC?

FLAC bitrate depends on channel number, bit depth and sampling rate.

As example, uncompressed FLAC bitrate for 1411 kbit/s ≈ 2 channel x 16 bit x 44100 Hz.

If FLAC is compressed, bitrate is 0.847 kbit/s ≈ 1411 kbit/s * 0.6 (approximate compression rate).

Is FLAC better than 320 Kbps?

FLAC is lossless audio format. 320 kbps is refer to lossy formats mp3 and AAC.

So, technically, FLAC is better than 320 kbps formats by sound quality.  Other factors are there too.

Lossy formats has lesser size than lossless ones.


Which is the best audio converter free?

Read which is the best audio converter free here...


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