I have begun creating an application that will later require intricate audio processing.

The sort of functions I am looking for are as follows:

- To be able to load WAV files.
- To be able to start a sound and stop a sound before the end of the sample.
- To be able to change the pitch of a sound.
- To be able to apply EQ effects to a sound.

I am working within QT and would like to keep it within the QT libraries. So which libraries would I be able to use?

Give QtMultimedia a try...

Would like to speed up and slow down songs, like WMP. Is there a simple app or something to be able to do this? Would be great.

QtMultimedia is you way

But you must know that one thing is audio playback (a simple thing) and another whole thing is audio processing (a complex thing)

Here the qt blog talks about the concept and an example of qtmultimedia for audio processing.

http://labs.trolltech.com/blogs/2010...-qtmultimedia/

http://labs.trolltech.com/blogs/2010...trum-analyser/

The 2nd one has a video!

Hope this helps

thanks dude

please have a look at the old ACID computer program if you could do something similar it would be a bomb!!!!thanks for any audio program anyway i work music so i am veeery interested!!!!good luck with your work!!!!

Hows this going. How can i change the pitch of a song again please.