[Music] [Audacity-devel] New Nyquist effects: cross-fades

[Alexandre Prokoudine]

--- Письмо переслано от Dominic Mazzoni
<dominic at audacityteam.org> ---

Date: Mon, 16 Feb 2004 12:56:55 -0800
From: Dominic Mazzoni <dominic at audacityteam.org>
Reply-To: audacity-devel at lists.sourceforge.net
Subject: [Audacity-devel] New Nyquist effects: cross-fades
To: audacity-devel at lists.sourceforge.net

I needed a true cross-fade for something I was working
on, so
I implemented cross-fade-in and cross-fade-out as
Nyquist effects.

The fade-in function is just f(x)=1-x^2 and fade-out is
f(x)=1-(1-x)^2.
When you fade one track out and the other one in with
this function,
the average (RMS) signal level stays the same, so it's
handy for
creating loops.

- Dominic

P.S. I have no idea what's going on, but I've been
trying to post to
the list from three different computers for over a
week, and all of
my posts are still being rejected!  As soon as I figure
out what's
going on, I'll catch up on everything.




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