Finding the length of an audio recording in iPhone

Question

I am recording the audio using avaudiorecorder. How do I find the length of the recording after saving the recording in a .caf file?

Answer 1

You can use helpers in the CoreMedia framework.

AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:avAudioRecorder.url options:nil];
CMTime time = asset.duration;
double durationInSeconds = CMTimeGetSeconds(time);