CODEWITHSUNDEEP
c++qtaudioprocess
Max Frai
Max Frai

Reputation: 64366

Qt and sound processing

I need to increase tempo of voice in sound file. (This effect will speed up the playing but leave the original tempo). Any ways to do this with c++ and Qt media library? Thanks.

Any links are excepted.

Upvotes: 1

Views: 1515

Answers (3)

cmannett85
cmannett85

Reputation: 22376

Qt cannot do what you want. Moreover, pitch-shifting is computationally intensive task involving fast Fourier transforms and then some trickery to counteract the phase shifting. Couple FFTW3 with this excellent guide, and you can do it.

Upvotes: 0

Xenakios
Xenakios

Reputation: 134

Qt has hardly any sound processing capabilities, so nothing as advanced as what the original poster wants exists in it.

Upvotes: 1

cyco130
cyco130

Reputation: 4944

You may want to try SoundTouch.

Upvotes: 1

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