DFF to FLAC Converter Software [Mac Windows]

AuI ConverteR 48x44 is DFF to FLAC converter (Mac OS, Windows) of audio files. For music production and hi-end home audio. In this article minimal price configurations are reviewed.
Read step-by-step guide below

How to convert DFF to FLAC

To convert DFF to FLAC (DSD to PCM file):

1. Launch AuI ConverteR 48x44.
    
2. Push Open files button and select *.dff file.
   First time, codec request window appear. To auto download and install the codec, push OK button.
    
3. Choose FLAC in main window (right middle part) Format field.
    
4. Choose output directory:
   In main window of the conversion software (left lower part) Directory output files field
   It can be as absolute as relative source-stuff directory.
    
5. Push Start button. Wait until end of conversion.
   Look for converted stuff into directory that selected in goal 3.

Set output compression level:

1. In the conversion software's main window push Settings button, Settings window is appear.
2. In Settings window > General tab > set the level via FLAC compressing slider.

Any compressing level provide same sound quality.

Features

• Studio sound quality
• DFF sample rates: D64/128/256/512/1024
• FLAC sample rate: 44.1 to 352.8, 384 kHz
•            bit depth: 16, 24, 32 bit
•            adjusted compression level: yes
• Stereo and multichannel both are supported
• Downmixing multichannel 5.1 to 2.0
• True gapless conversion (see below)
• Auto level normalization (see below)
• 3 resampling fiter modes (into DFF decoder), including audio optimization to reduce audible distortions at some systems;
  (from optimized mode (eliminating of audible ultrasound intermodulation products at some equipment) to 100 kHz wide band mode)
  Metadata editor (add/edit/remove album, song names, year, performer, genre and other, add/remove artworks *.png, *.jpg)
• group metadata editing of several files.

True Gapless Mode

True gapless mode intended for albums, that should sound as solid stream. It is live concerts, operas and other. After resampling at track borders, artefacts can appear. It happens due processing re-initialization at the begin each track. In True gapless mode initialization is performed at begin of first album track.

If True Gapless Mode turned on, album tracks are converted sequentially, one-by-one. There is need information about end of previous track before start processing next one.

Auto level normalization

As rule, 1-bit records have -6 dB headroom by sigma-delta modulator stability issues.

Auto level normalization allow to maximize album level with keeping relative levels of its tracks.

Sound quality

Sound quality (distortion value) is first point of attention in design professional software. Tranformations should be transparently to original stuff quality as possibly.

AuI ConverteR vs a converter software: DSD64 to PCM 44.1 kHz aliases

In ideal case, should not be repeatable lines with lower brightness (aliases). The aliases are audible distortions, that correlate with original signal.

Any AuI ConverteR’s version provide fully identical signal processing quality.

But functional restrictions and available formats, sample rates, etc. are different.

The software convert DFF audio file to FLAC as sigma-delta-modulation noise filtering.

Operas, musicals, live concerts and same albums are solid music stream. Recording is done in single file. Before placement at optical disk the stream is divided into tracks. At its borders non-zero loudness are possible. It can cause border artefacts.

Converting such tracks as separate files, cause aftefacts at track borders. Because processing is initialized at begin of next track. True gapless conversion process these tracks as single stream with initialization at first album composition begin only.

1-bit formats maximal value is  -6 dB limited. It is DSD modulator's stability issues. Auto level normalizing magnify (or reduce in some cases) loudness of all tracks so maximal peak level of full converted album is 0 dB.

Resampling filters of the conversion software are reviewed here.

DFF to FLAC Converter Configurations

AuI ConverteR have several price/functionality options, that allow to save your budget for necessary functionality.

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

• Build custom confugurations >
• To expand functionality: Modula-R module list >
• Ask for advice >

Read more

About FLAC (Free Lossless Audio Codec) >

About DSD demodulator >

References

DFF format specification

Free Lossless Ausio Codec format specification

Read more about DFF

1. DFF file format. DFF file extension >
2. DFF to DSF Conversion on Mac OSX, Windows, Linux >
3. DFF to DSF Converter >
4. How convert DST compressed DFF under Windows >

Read more about FLAC

How to Improve Sound Quality

Where is the Limit of Audio Quality?

How to Choose the Best Audio Converter Software [Article]

How to Choose the Best CD Ripping Software

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DFF to DSF Converter on Mac OS, Windows [Audio Software]