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Hi,

I’m planning to create a DJ-/mixing software and I wonder if it’s possible with FMOD to control the pitch of samples (e.g. mp3’s).

Thank you.

fmod_steven

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There are two ways you can go about this:
1.) The cheap way is just to adjust the playback frequency through Channel::setFrequency(). This has the advantage of being basically free CPU-wise, but it is not a time-invariant pitch-shift. So if you increase the frequency of the sound, the playack time decreases.

2.) FMOD includes a time-invariant pitch shift DSP which you can attach to the channel via a System::createDSPByType() and Channel::addDSP() combo. This DSP will let you adjust the frequency without modifying the play time, but it is very CPU-intensive, and you can’t expect to get very many of these running at once.

Hope that helps!

  • Guy
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Thank you! 😀

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