## audacity-nyquist — Discussion among Nyquist programmers creating plug-ins for Audacity

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 Re: [Audacity-nyquist] transpose effect From: Dominic Mazzoni - 2006-04-19 15:05:41 ```Matthias, It's not currently possible to do what you want to do with Audacity.=20 Changing the pitch without changing the tempo is tricky; it's not really=20 a mathematical operation, but rather a complicated psychoacoustic=20 algorithm. Audacity uses the excellent SoundTouch library for its=20 "Change Pitch" effect, but currently doesn't support the ability to=20 dynamically change the pitch over time. On the other hand, changing the speed continuously over time, affecting=20 both the pitch and tempo, like speeding up a record player, is easier -=20 it's a more purely mathematical operation. There are two ways to do=20 this in Audacity: one is to create a Time Track, which warps all tracks=20 and makes them faster or slower, including gradual speed changes. The other way is in Nyquist - as an example, See David Sky's "turntable=20 warping" plug-in: http://audacity.sourceforge.net/download/nyquistplugins - Dominic Matthias Lange wrote: > hallo, >=20 > I have installed Audacity one week ago and I like the option to program= =20 > effects myself with nyquist. I tried to understand the manual but=20 > somehow I don=C2=B4t get some things... > What I want to do is this: Record something on Audacity, select a part=20 > of a track and change its pitch gradually (linear) without changing=20 > tempo or the other tracks. > But the transpose function does not do anything... > I tried to do (transpose 5 s) for example, but nothing happens. Later,=20 > the pwl function works fine with volume for example, so that won=C2=B4t= be=20 > the problem to make the change linear. > But why doesn=C2=B4t nyquist accept that I want to transpose s? > Or is transpose wrong and (fmosc) better (??) > I hope someone can help me, > thanks, > Matthias >=20 >=20 > ------------------------------------------------------- > This SF.Net email is sponsored by xPML, a groundbreaking scripting lang= uage > that extends applications into web and mobile media. Attend the live=20 > webcast > and join the prime developer group breaking into this new coding territ= ory! > http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D110944&bid=3D241720&dat= =3D121642 > _______________________________________________ > Audacity-nyquist mailing list > Audacity-nyquist@... > https://lists.sourceforge.net/lists/listinfo/audacity-nyquist ```
 [Audacity-nyquist] transpose effect From: Matthias Lange - 2006-04-19 08:56:44 ```hallo, I have installed Audacity one week ago and I like the option to program effects myself with nyquist. I tried to understand the manual but somehow I don´t get some things... What I want to do is this: Record something on Audacity, select a part of a track and change its pitch gradually (linear) without changing tempo or the other tracks. But the transpose function does not do anything... I tried to do (transpose 5 s) for example, but nothing happens. Later, the pwl function works fine with volume for example, so that won´t be the problem to make the change linear. But why doesn´t nyquist accept that I want to transpose s? Or is transpose wrong and (fmosc) better (??) I hope someone can help me, thanks, Matthias ```

Showing 2 results of 2