How to add iPod EQ when playing audio with AVPlayer?

问题

I am able to play songs from iPod library using AVPlayer class. Now what I want to do is to insert equalizer to the audio produced.

Anybody has experienced in doing this?

回答1:

There is no way to play MPMediaItem and adding sound equalizer with AVPlayer. We have to use Audio Unit processing.

回答2:

I have done this leveraging a class provided in the Apple Samples:

http://developer.apple.com/library/ios/#samplecode/avTouch/Listings/Classes_CALevelMeter_h.html

Hope this helps.

来源：https://stackoverflow.com/questions/7485654/how-to-add-ipod-eq-when-playing-audio-with-avplayer