[kyrill]

I found this post: (http://www.computeraudiophile.com/content/Upsampling)
Upsampling!

Submitted by Socrates7 on Wed, 12/09/2009 - 18:57

I was chatting with Steve Nugent last week and he encouraged me to run out and try Audifile Engineering's Wave Editor software. Specifically, he suggested I dither some 16bit files to 24bit, then, upsample them 88.2 or 96. No, it's not the same as a studio master, but since the software is has a nice long free trial period, what's not to like? "Try it and see for yourself", he said...

Anyway, long story short -- I dithered, saved, upsampled and saved again Norah Jones' first album and then piped that through the loaner Lavry DA11 I have on hand ....

... and now ....

... I might not leave the my listening chair this evening.

Just thought I'd share!

=========================================
SO what is (the best) good software upsampler for PC? and best freeware?
Especially since Touch  or HiFace accepts 24 bit 96 kHz and higher

I found R8brain, but is there better? BTW found very few posts of up-samplers in Audiocircles (last 600 days)

[Vincent Kars]

An obvious one is the Windows audio engine.
If you go to the advanced tab of the sound panel of your audio device you can set the bit depth and sample rate
http://www.thewelltemperedcomputer.com/SW/Windows/Win7/SPDIF_Win7.htm

A popular piece of freeware is SOX: http://sox.sourceforge.net/

The funny thing is that on Windows the WASAPI driver is often used.
http://www.thewelltemperedcomputer.com/SW/Windows/Win7/WASAPI.htm
It bypasses the Win audio engine. As a consequence all audio is played at its native sample rate. You can see the same on the MAC platform. People paying money for tools like Amarra or Pure Music to avoid iTunes to resample the audio.
SRC (Sample Rate Conversion) is often detrimental for the sound quality.