Subject: Re: [linux-audio-user] LADSPA Module
From: Jason (hormonex_AT_yankthechain.com)
Date: Sat Dec 08 2001 - 23:40:24 EET
oh, time compression. you just need an algorithm that searches for zero
crossings in a wave file, creates region markers at the crosssing, and
then crossfades the regions together.
On Fri, 7 Dec 2001, Ben Saylor
wrote:
> It's not the speed of the sound through the air - "tempo" is probably a
> less confusing term.. e.g. if you do this to a sample of music, it will
> sound like it's being played faster, but at the same pitch.
>
> On Fri, Dec 07, 2001 at 01:45:50PM -0500, Jason wrote:
> > On Fri, 7 Dec 2001, Andy Wingo wrote:
> > > > * change the speed of a wave without changing pitch ???
> > >
> > > No. To do this, you would have to read data at a different rate than you
> > > write it. In order to get this effect, you need to have a ladspa host
> > > that can change the speed by resampling then adjust the pitch with
> > > steve's plugin. Experts correct me if I've erred on this one ;)
> >
> > I'm just a little curious as to what changing the speed of the wave means.
> > The speed of a wave is going to be determined by physics, and it's not
> > something you can hear in most cases. The only real world analogy I can
> > imagine would be hearing something sooner because the air sound was
> > traveling through was moving towards you. But still, that's not something
> > that you'd necessarily notice.
> >
> >
> > >
> > > cheers,
> > >
> > > wingo.
> > >
> > > ps. this question is best suited to linux-audio-user, imho.
> > >
> >
> > --
> > YankTheChain.com - You can pretend we're not here. That's what I do.
> >
> > ,
> >
>
-- YankTheChain.com - You can pretend we're not here. That's what I do.,
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