avaudiosession

I have an audio player which has an option of switching the Audio Output from Speaker to Receiver/Earpiece (irrespective of whether headset is connected) when proximity sensor notifies 1. The following is my code for doing so. - (void) switchAudioOutput:(NSString*)output{ AVAudioSession* audioSession = [AVAudioSession sharedInstance]; BOOL success; NSError* error; if([output isEqualToString:keAudioOutputReciever]){ //Force current audio out through reciever //set the audioSession override success = [audioSession overrideOutputAudioPort:AVAudioSessionPortOverrideNone error:&error]; if (!success

I received the following error when I get the property using AudioSessionGetProperty(kAudioSessionProperty_CurrentHardwareSampleRate,&size, &myAudioDescription.mSampleRate) Error Produced by above statement is Error Domain=NSOSStatusErrorDomain Code=560557673 "The operation couldn’t be completed. (OSStatus error 560557673.)" Now, here what does 560557673 mean and where can I find its explanation? Documentation only provides NSOSStatusErrorDomain as one of the errors. That code means the property data size was not correct. OSStatus is a type commonly used for error codes in OS X and iOS. If the

I'm using the code that can be found here . I've tried to change sample rate using: [[AVAudioSession sharedInstance] setPreferredHardwareSampleRate:SAMPLE_RATE error:nil]; Inside the init function on SoundRecoder.m file. (SAMPLE_RATE is 16000.0) When I'm checking the file it seems that still the metadata says the sample rate is 44100, I've tried also to use (as suggested here ): AudioSessionSetProperty ( kAudioSessionProperty_PreferredHardwareSampleRate ,sizeof(F64sampleRate) , &F64sampleRate ); When F64sampleRate is 16000 but still same failure. Does the device can choose which rate to sample

I've developed an iPhone application that allows other apps to play audio in the background. To achieve this, I initialize my audio session like this: [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil]; At some point in my application I provide an audio player to play some files stored in CoreData with AVAudioPlayer. When the user hits the play button, the background audio should be paused. When the player has finished or is paused, the background audio should resume playback. While resuming after the player has finished playback with -(void

I'm trying to play a "beep" sound as required by apple when I start recording a video. I've found through SO and other sources that you can't play a sound while you have an audio input going without some configuration. Here's my attempt at the configuration method: private void SetupAudio() { beepSound = AssetBank.GetSystemSoundWav("video_record", "video_beep"); AudioSession.Initialize(); AudioSession.Interrupted += delegate { Console.WriteLine("Interrupted handler"); }; AudioSession.Category = AudioSessionCategory.PlayAndRecord; AudioSession.OverrideCategoryMixWithOthers = true; NSError err;

I'm, creating a player app. I've implemented 'remoteControlReceivedWithEvent:' method and could change playing state by this buttons ( apple guide ). But when something playing from 'Music' or 'iTunes U' apps, than there are a song title appear under remote controls. Is there any way to show there my own text from my player app? Thanks in advance. Yes, it's done through the MPNowPlayingInfoCenter 来源： https://stackoverflow.com/questions/9384965/is-it-possible-to-add-track-title-to-now-playing-controls-menu-as-music-app-or

In my application for recording and playing audio using AVAudioRecorder and AVAudioPlayer I came across a scenario in the case of incoming phone call.While the recording is in progress and if the phone call comes,the audio recorded after the phone call is only recorded.I want the recording recorded after the phone call to be the continuation of the audio recorded before the phone call. I track the interruption occuring in audio recorder using the AVAudioRecorderDelegate methods (void)audioRecorderBeginInterruption:(AVAudioRecorder *)avRecorder and (void)audioRecorderEndInterruption: