avaudiosession

I'm building a turn-by-turn navigation app that plays periodic, short clips of sound. Sound should play regardless of whether the screen is locked, should mix with other music playing, and should make other music duck when this audio plays. Apple discusses the turn-by-turn use case in detail in the "WWDC 2010 session 412 Audio Development for iPhone OS part 1" video at minute 29:20. The implementation works great, but there is one problem - when the app is running, pressing the hardware volume controls adjust the ringer volume, not the app volume. If you want to change the app volume, you must

I have seen some apps like WhatsApp has a feature to play audio clips only through earpiece(phone call speaker) when the user brings up the device near to ear. Otherwise its playing via normal built-in speaker. I am using MPMoviePlayer for playing audio clips. I did go through lots of similar questions and answers on the internet, and all the answers say to set the AudioSession Category to PlayAndRecord. Thats it. I did the same, but couldn't get the exact result that I want to get. // Audio Player self.audioSession = [AVAudioSession sharedInstance]; [audioSession setCategory

I'm making an app that records ( AVCaptureSession ) and plays ( AVPlayerLayer ) video. I'd like to be able to do this without pausing background audio from other apps and I'd like the playback to respect the mute switch. In the AppDelegate I have set AVAudioSessionCategoryAmbient , according to the docs this should: The category for an app in which sound playback is nonprimary—that is, your app can be used successfully with the sound turned off. This category is also appropriate for “play along” style apps, such as a virtual piano that a user plays while the Music app is playing. When you use

I'm trying to set my AVAudioSession to inactive to get back to normal state. My utterance function: class SSpeech : NSObject, AVSpeechSynthesizerDelegate { var group = DispatchGroup(); var queue = DispatchQueue(label: "co.xxxx.speech", attributes: []) class var sharedInstance: SSpeech { struct Static { static var instance: SSpeech? } if !(Static.instance != nil) { Static.instance = SSpeech() } return Static.instance! } required override init() { super.init(); self.speechsynt.delegate = self; } deinit { print("deinit SSpeech") } let audioSession = AVAudioSession.sharedInstance(); var speechsynt

With iOS10 there are more possibilities to manage AUdioSession, but i couldn't manage to keep the headphone microphone as input while audio is going out through the iphone speaker. The 'overrideOutputAudioPort' method below also override the input audio port as the iphone microphone let session = AVAudioSession.sharedInstance() do { try session.setCategory(AVAudioSessionCategoryPlayAndRecord) try! session.overrideOutputAudioPort(.speaker) } catch { } Is there any solution to keep the headphone as input? How I undeerstand this Apple documentation , this is not possible using AVAudioSession : If

i have a mpmovieplayercontroller to play online music and avaudiosession to play the same music at background, when the first time app launches without network access, normally i shows "no internet connection" , when i tried after connecting to internet and playing it shows the error *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'An AVPlayerItem cannot be associated with more than one instance of AVPlayer' my code is here static MPMoviePlayerController *player=nil; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self =