[SDL] signal processing and SDL
mbardiaux at mediaxim.be
Thu Sep 1 02:43:17 PDT 2005
Matt Flax wrote:
> Hello all,
> I would like to use the SDL library for audio signal processing ... more
> specificly I would like to incorperate WSOLA
> and SDL to make an audio
> speed change library.
The current speed change code in SDL is no good at all, it would be nice
if you actually *replaced* it with something that worked for any ratio.
> OK ... so I am wondering whether anyone knows of any examples which have
> the following properties :
> a] an init function
> b] a play CALLBACK function which :
> loads data from an audio file
> signal processes the data
> writes the new processed data to the sound device.
> It is important that the play function gets called from an SDL operated
> thread when need be to read a certain ammount of data for the sound
> device to play ...
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