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Audio Converter Tips & Tricks: What Better Multiple or Non-Multiple Resampling?

There are two popular algorithms of resampling non-multiple sample rates: interpolation and over/down multiple resampling.

What better multiple or non-multiple resampling

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WARNING: Input DSF, DFF, ISO supported in Audiophil-E, PROduce-R and configurable Modula-R
Output DSF supported in maximal PROduce-RD and configurable Modula-R

 

Interpolation

Interpolation is restoring of virtual inter-samples (between «real» samples).

Some resampling algorithms can use interpolation for non multiple resampling.
Like spline function, as example.
Interpolation provide some non-linear distortions (artifacts).
Level of these artifacts depend on interpolation quality.
 

Over/down multiple resampling

For resampling popular audio sample rates also used algorithm without interpolation.

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How to Improve Sound Quality

Tutorials

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.

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