Changing sound speed

[Ovidios]

Hey,

I wanted to know if there was a way to change the speed at wich a sound plays without making the sound sound brighter or darker. And is it possible to play a sound lighter but at the same speed?
Hope I'll get answers soon!

Thanks in advance!

[zorg]

You mean without it sounding higher or lower in pitch? no, love can't do time stretching, only setting the pitch with [wiki]Source:setPitch[/wiki], which will also affect the playback speed.

[undef]

If the sound you want to play is rather short, or if you don't have to compute the sound over and over again, you could copy certain samples of your source into a new one.
(Create a new source from samples with love.audio.newSource.)
I don't yet know how to stretch a sound, but it could be something like using the same samples multiple times and then increasing the pitch? (I have no idea if this would work^^)

Well, please let me know how you did it when you found the solution!

If you will have to dig in deeper, and maybe apply fourier transformations there's a book I can recommend, that I have partially read:

http://www.dspguide.com/ch1.htm