Every year volume of downloadable high resolution digital audio are growing.
At our home we amass a vast sound libraries.
We need converting audio formats and resolution for:
- compatibility with DAC and players,
- reducing hard disk or disk storage space occupied music
How to convert files to WAV? We talk about lossless conversion of format, sampling rate and bit resolution.
Main requirement to this software is clear sound with minimum noises.
Hi-end ( professional ) converters on the market has:
- low level of noise,
- built-in dithering,
- minimum phase filter.
Dithering - method of sound transparency improvement for 16 bit resolution conversion.
Minimum phase filter (Analog mode) (of sample rate conversion) - sound burn noise for digital sample frequency conversion. First you listen the (pre-sound) noise. After very short delay you hear sound. Converter in analog mode efficiently restrict the pre-sound noise.
However HD audio converters have three problems :
Limited number of built-in output formats - HD downloadable audio files have lossless (FLAC, WAV, AIFF). Usually high resolution and professional software for conversion support a restricted range of output formats. Don't supported formats ogg, mp3, alac and other (used for qualitative mobile audio gears: car and portable systems). Required additional manual converting of file with changed bit-depth and sampling frequency to destination format.
User of AuI Converter 48x44 able append required output file format. Third-parties encoders (executive files) can be connected via command line with parameters.
Noise of shifted ultrasound: shortcoming of audio gears cause ultarsound shifted to bottom and become audible as noise. Especially it might rising during playback high resolution (88/96/176/192 kHz) at high loudness level.
AuI Converter 48x44 reject the noise.
Runing on Mac OS X with Win emulation software - many engineers and audiophiles use Mac. Some high resolution audio conversion software has Windows version only.
AuI Converter 48x44 application has Mac OS X version.
Which can offers audiophile tools for resolution ( sample rate and bit depth) conversion of lossless files with intuitive interface?
Read more about AuI ConverteR 48x44
About AuI ConverteR 48x44
Special design for HD conversion of lossless files WAV, FLAC, AIFF:
- 64-bit float internal audio processing;
- noise of conversion below noise of 24-bit quantisation;
- dithering algorithm for improving of transparency 16 bit conversion (16 bit to 24 bit/32 bit, 24 bit/32 bit to 16 bit, 16 bit to 16 bit);
- sample frequency converting without pre-ringing at output. Similar to analog sound processing (minimum phase filter mode);
- sample rate conversion without phase distortions. Fine for such instruments as drums, piano, guitar (linear phase filter mode).
Rejecting noise of shifted ultrasound simultaneously with sample frequency conversion algorithm alphaC.
User customization of output files formats : after converting automatically launching command line encoder utilities by third-parties developers. You can link your encoder utilities off one's own bat.
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)||
≤ 3 min
|Downmix 5.1 to stereo|
|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
|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|
All prices without EU VAT and other applied local taxes