AVAudioRecorder - Proper MPEG4 AAC Recording Settings

Question

I\'ve got a live app with an estimated 15% of users reporting that the record feature is not working. This isn\'t happening on our test devices, but the reports show that the p

Answer 1

Try this settings which i used to record MPEG 4 AAC format...Its working good..

NSString *tempDir = NSTemporaryDirectory();
NSString *soundFilePath = [tempDir stringByAppendingPathComponent:@"sound.m4a"];

NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath];
NSDictionary *recordSettings = [NSDictionary dictionaryWithObjectsAndKeys:
                                  [NSNumber numberWithInt:kAudioFormatMPEG4AAC], AVFormatIDKey,
                                  [NSNumber numberWithInt:AVAudioQualityMin], AVEncoderAudioQualityKey,
                                  [NSNumber numberWithInt: 1], AVNumberOfChannelsKey,
                                  [NSNumber numberWithFloat:8000.0], AVSampleRateKey,
                                  nil];