Subject: Re: [linux-audio-user] high-quality resampling
From: Florin Andrei (florin_AT_andrei.myip.org)
Date: Thu Feb 19 2004 - 19:59:32 EET
On Wed, 2004-02-18 at 23:09, Erik de Castro Lopo wrote:
> There are two aspects to resampling:
>
> a) maximizing signal to noise
> b) maximizing passband width
> If you can find anything that beats libsamplerate in both of these areas,
> I want to know about it.
Indeed, libsamplerate looks very good from this perspective, that's why
i was investigating it.
But i'm also interested to know if anyone did a "live" test with various
resampling tools, and listen to high-quality records resampled by those
tools, ideally in a blind test.
I was kinda planning to do that myself some time in the (not too near)
future, but other people's input is appreciated. Especially since such a
test is difficult to do properly: use the right equipment (studio
monitors, refference headphones, etc.) in the right conditions, find
real high-q music records that feature details which could be
sampling-sensitive (usually bright sounds with fast attacks), take the
time to repeat the blind test enough times to make it significant, and
so forth.
But yes, lacking this kind of input, and having to make a quick decision
based on numbers only, i'd probably go with libsamplerate.
-- Florin Andrei
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