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iosswiftavaudiorecorder

how to improve AV recording quality in swift. i want HD recording

bellow is my current AVRecorder settings, I want to improve it to have the highest quality of the recording.

let settings = [
                    AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
                    AVSampleRateKey: 44100,
                    AVNumberOfChannelsKey: 2,
                    AVEncoderAudioQualityKey: AVAudioQuality.max.rawValue
                ]
Solution

  • To improve AV Recording quality change formatIDKey : kAudioFormatAppleLossless 

    let settings = [
                        AVFormatIDKey: kAudioFormatAppleLossless,
                        AVSampleRateKey:44100.0,
                        AVNumberOfChannelsKey:2,
                        AVEncoderAudioQualityKey:AVAudioQuality.max.rawValue
               ]