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The Modern View of HD Converting Audio Files

Buying downloadable music at online stores and digital home libraries became usual for audiophiles.

Now we have a huge number of digital audio formats and audio devices.

Demands of a wide range of listeners to the quality of sound are steadily increasing.

We want listen qualitative downloaded music at our cars and mobile phones expecting pure sound. A lot of car audio systems support only CD as lossless source.

But audio resolution conversion (sample rate and bit depth) has loss of quality always.

Whether comply existing audio converters with modern realities?

Applications of Audio File Resolution Conversion


3 Troubles of HD Audio Converters

1. Noise of shifted ultrasound

2. Restricted number of output formats

3. Mac launch with Win-emulator software.

    Noise of shifted ultrasound: this noise (intermodulation distortions) occurs due non-linear distortions of analog part of audio devices during playback 88/96/176/192 kHz files.

Intermodulation distortions


     Restricted number of output formats: Downloadable files usually have FLAC, WAV, AIFF formats. HD audio converters often support only a limited number of built-in output formats. Often wma, mp3, alac, other (used in qualitative mobile audio) don't supported. Need manual final converting to the desired format.

     Mac launch with Win-emulator software: many professionals and audiophiles using Mac. Some HD-quality audio converters are written only for Windows.


Why AuI ConverteR 48x44

1. Special design for audio resolution conversion of lossless files

2. Suppressing noise of shifted ultrasound

3. User customization of output format

And native launching for Mac OS X and for Windows.


Special design for audio resolution conversion of lossless files WAV, FLAC, AIFF

    - noise of conversion below noise of 24-bit quantisation;

    - sample rate conversion mode without phase distortions (linear phase filter) fine for sounds with sharp attack (drums, piano, guitar);

    - sample rate conversion mode without pre-ringing (minimum phase filter) like analog filtration;

Linear Phase Filter vs. Minimum Phase Filter

    - original alphaD dithering for improving of transparency of 16 bit conversion;

    - 64-bit floating point all internal processing.

Suppressing noise of shifted ultrasound embodied into alphaC algorithm of sampling rate conversion.

User customization of output format is automatic (after resolution conversion) launching of command line encoder utilities. User can on one's own connect necessary utilities.



AuI ConverteR 48x44 is

audiophile converter specially designed for high resolution music

with capabilities:

1. Suppressing noise of shifted ultrasound

2. User customization of output format

3. Native launching for Mac OS X and for Windows

More about AuI ConverteR 48x44...


Comparing of AuI ConverteR 48x44 versions

PROduce-R for media production with supporting pro options (BWF with automatic measurement of signal level, 64 bit audio resolution).

Audiophil-E for home using with rich functionality (minimum phase filter, FLAC meta tags, multi CPU, command line and other supporting).

Lite is budgetary home version with essential capabilities.

Flexible configuring and saving money.
You can order AuI ConverteR Modula-R's options that you need for minimal price.
You can upgrade your Modula-R in future via ordering other modules.
Extra Warranty available for Modula-R edition.

ORDER AuI ConverteR
Modula-R for

Some sets of modules can have lower price in one of editions considered in the table below.






Output DSF D64/128/256/512 2 sec silence in middle file
≥ 3 min
Input DSF, DFF, ISO 2 sec silence in middle file
≥ 3 min



True Gapless Conversion        
FLAC/AIFF 32 bit        
Lossless formats WAV, FLAC, AIF, AIFF, AIFF/sowt, m4a (ALAC), APE
Lossy formats mp3, WMA, m4a, mp4, ogg and more
CD ripper get CD info from Internet 1 track
Input CUE + file    
Support meta tags (album and track name, artist, etc.)  
DSF, FLAC, WAV, AIFF tag editor
Batch processing of group of files 2 sec silence in middle output file:
- since 2 file for PCM to PCM,
- since 1 file for all other
Multiple files in parallel
Multichannel files (more 2 channels) output
≤ 3 min
Output volume adjust      
Inverting phase audio      
Input / output sample rates 352, 384 kHz WAV, AIFF, FLAC,...     WAV, AIFF, FLAC,... WAV, AIFF, FLAC,...
Output sample rates 705, 768 kHz WAV, AIFF     WAV, AIFF WAV, AIFF
Input / output sample rates 22, 44, 48, 88, 96, 176, 192 kHz
Bit-depth samples of input files: 16, 24, 32 (wav), 64 integer and 32, 64 floating point
Bit-depth samples of output files:  
        16 and 24 bit
        32 bit (wav)    
        32 bit (floating point)
        64 bit and 64 bit
          (floating point)
alphaC sample rate and bit-depth conversion algorithm
alphaD dithering algorithm
Audio processing 64-bit floating point
External format converters of files (download codec by demand, user can add own extensions) 9 only 9 only
Support extensible WAV-file's formats (sampler's notes, BWF - Broadcast Wave Format etc.)      
Support WAV 64-bit (RF64) format (size more 2 gigabyte)  
Search files by sample rate, bit-depth, format
No pre-ringing (minimum phase filter)
Launch via command Line    
Possible start more one instance of application simultaneously    
Additional skins, editing and creating custom skins  
Count skins   10 10 10
Commercial using  
Extra Warranty    

    All prices without EU VAT and other applied local taxes

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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 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.

Available for testing new studio audio converter AuI ConverteR 48x44 v. 6.1.7-beta CD ripper, ISO, DFF, DSF, WAV, FLAC, AIFF, ALAC with downmix 5.1 to 2.0 (multichannel to stereo) ability.

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