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Dithering Audio for Audiophiles and Recording Studio

Dithering audio is mixing lo-res (16-bit) audio data with special noise (dither) for supressing of quantization noise. It make sound more clear.

Quantization noise is nonlinear distortions appear by reason of errors of conversion of hi-res (24 bit and more) signal from low-res and vice versa.

Discordant of quantization noise as assumed is consequence of correlation the noise by musical signal. Other words (not exact definition), musical signal generates quantization noise similar to the signal.

Thus dithering masks quantization noise suppressing it.

Of course, dither is additional noise of resulting sound. But it is very quiet.

Exists several algorithms of generation this noise. Its spectrum may be adapted to spectrum of musical signal (masked by music, as example).


alphaD ditheing algorithm

alphaD is original dithering algorithm of AuI ConverteR 48x44 mask quantisation noise with minimal intervention into music.

Download DEMO AuI ConverteR 48x44 and try alphaD dithering algorihm.

Recommendation of alphaD applying for sample rate conversion:

1) Input audio file 16 bit integer --to--> Output file 16/24/32/64 bit integer and 32/64 bit float;

2) Input audio file 16/24/32/64 bit integer and 32/64 bit float --to--> Output file16 bit integer.



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How to Improve Sound Quality


In this article term "to improve sound quality" mean "to decrease sound playback distortions at analog output of digital-analog converter". How to try to decrease the playback distortions for used equipment or portable device (digital audio player, mobile phone, etc.) will be considered below.

AuI ConverteR 48x44 - Free Music Converter
AuI ConverteR 48x44 - Free Audio Converter

AuI ConverteR 48x44 is pro audio converter of music files DSF, DFF, ISO (1-bit audio), FLAC, WAV, AIFF, m4a, CD-audio, CUE, APE, ogg, mp3. The converter is intended for music production and audiophiles.

AuI ConverteR 48x44 FREE may be used as free audio converter for Windows and Mac OS X. There is professional digital audio processing (altering resolution - sample rate, bit depth and dithering) of audio files is provided.