public IOSAudioProcessor() { var inputComponent = AudioComponent.FindNextComponent( null, new AudioComponentDescription { ComponentFlags = 0, ComponentFlagsMask = 0, ComponentManufacturer = AudioComponentManufacturerType.Apple, ComponentSubType = (int)AudioTypeOutput.Remote, ComponentType = AudioComponentType.Output }); recorder = inputComponent.CreateAudioUnit(); recorder.SetEnableIO(true, AudioUnitScopeType.Input, inputBus); recorder.SetEnableIO(false, AudioUnitScopeType.Output, outputBus); var audioFormat = new AudioStreamBasicDescription { SampleRate = StudentDemo.Globals.SAMPLERATE, Format = AudioFormatType.LinearPCM, FormatFlags = AudioFormatFlags.IsSignedInteger | AudioFormatFlags.IsPacked, FramesPerPacket = 1, ChannelsPerFrame = 1, BitsPerChannel = 16, BytesPerPacket = 2, BytesPerFrame = 2 }; recorder.SetAudioFormat(audioFormat, AudioUnitScopeType.Output, inputBus); recorder.SetAudioFormat(audioFormat, AudioUnitScopeType.Input, outputBus); recorder.SetInputCallback(AudioInputCallBack, AudioUnitScopeType.Global, inputBus); // TODO: Disable buffers (requires interop) aBuffer = new AudioBuffer { NumberChannels = 1, DataByteSize = 512 * 2, Data = System.Runtime.InteropServices.Marshal.AllocHGlobal(512 * 2) }; }
void prepareAUGraph() { // Creating audio graph instance _auGraph = AUGraph.CreateInstance(); // getting audio node and audio unit AudioComponentDescription cd = new AudioComponentDescription() { componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output, componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO, componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple, componentFlags = 0, componentFlagsMask = 0 }; int remoteIONode = _auGraph.AddNode(cd); AudioUnit remoteIOUnit = _auGraph.GetNodeInfo(remoteIONode); // turning on microphone remoteIOUnit.SetEnableIO(true, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 1 // remote input ); // audio canonical format AudioStreamBasicDescription audioFormat = CanonicalASBD(44100, 1); remoteIOUnit.SetAudioFormat(audioFormat, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Output, // output bus of Remote input 1 // Remote input ); remoteIOUnit.SetAudioFormat(audioFormat, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 0 // Remote output, ); // Connecting Remote Input to Remote Output _auGraph.ConnnectNodeInput( remoteIONode, 1, remoteIONode, 0); // getting output audio format _audioUnitOutputFormat = remoteIOUnit.GetAudioFormat( AudioUnit.AudioUnitScopeType.kAudioUnitScope_Output, // Remote output bus 0 // Remote output ); _auGraph.RenderCallback += new EventHandler <AudioGraphEventArgs>(_auGraph_RenderCallback); // graph initialization _auGraph.Initialize(); }
void prepareAudioUnit() { // Updated for deprecated AudioSession var session = AVAudioSession.SharedInstance(); NSError error; if (session == null) { var alert = new UIAlertView("Session error", "Unable to create audio session", null, "Cancel"); alert.Show(); alert.Clicked += delegate { alert.DismissWithClickedButtonIndex(0, true); return; }; } session.SetActive(true); session.SetCategory(AVAudioSessionCategory.PlayAndRecord); session.SetPreferredIOBufferDuration(0.005, out error); // Getting AudioComponent Remote output _audioComponent = AudioComponent.FindComponent(AudioTypeOutput.Remote); // creating an audio unit instance _audioUnit = new AudioUnit(_audioComponent); // turning on microphone _audioUnit.SetEnableIO(true, AudioUnitScopeType.Input, 1 // Remote Input ); // setting audio format _audioUnit.SetAudioFormat(_dstFormat, AudioUnitScopeType.Input, 0 // Remote Output ); var format = AudioStreamBasicDescription.CreateLinearPCM(_sampleRate, bitsPerChannel: 32); format.FormatFlags = AudioStreamBasicDescription.AudioFormatFlagsNativeFloat; _audioUnit.SetAudioFormat(format, AudioUnitScopeType.Output, 1); // setting callback method _audioUnit.SetRenderCallback(_audioUnit_RenderCallback, AudioUnitScopeType.Global); _audioUnit.Initialize(); _audioUnit.Start(); }
void prepareAudioUnit() { // AudioSession AudioSession.Initialize(); AudioSession.SetActive(true); AudioSession.Category = AudioSessionCategory.PlayAndRecord; AudioSession.PreferredHardwareIOBufferDuration = 0.005f; // creating an AudioComponentDescription of the RemoteIO AudioUnit AudioComponentDescription cd = new AudioComponentDescription() { componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output, componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO, componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple, componentFlags = 0, componentFlagsMask = 0 }; // Getting AudioComponent using the audio component description _audioComponent = AudioComponent.FindComponent(cd); // creating an audio unit instance _audioUnit = AudioUnit.CreateInstance(_audioComponent); // turning on microphone _audioUnit.SetEnableIO(true, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 1 // Remote Input ); // setting audio format _audioUnit.SetAudioFormat(_dstFormat, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 0 // Remote Output ); _audioUnit.SetAudioFormat(AudioUnitUtils.AUCanonicalASBD(_sampleRate, 2), AudioUnit.AudioUnitScopeType.kAudioUnitScope_Output, 1 // Remote input ); // setting callback method _audioUnit.RenderCallback += new EventHandler <AudioUnitEventArgs>(_audioUnit_RenderCallback); _audioUnit.Initialize(); _audioUnit.Start(); }
void prepareAudioUnit() { // Creating AudioComponentDescription instance of RemoteIO Audio Unit var cd = new AudioComponentDescription() { componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output, componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO, componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple, componentFlags = 0, componentFlagsMask = 0 }; // Getting AudioComponent from the description _component = AudioComponent.FindComponent(cd); // Getting Audiounit _audioUnit = AudioUnit.CreateInstance(_component); // turning on microphone _audioUnit.SetEnableIO(true, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 1 // Remote Input ); // setting AudioStreamBasicDescription var audioFormat = AudioUnitUtils.AUCanonicalASBD(44100.0, 2); _audioUnit.SetAudioFormat(audioFormat, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 0 // Remote output ); _audioUnit.SetAudioFormat(audioFormat, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Output, 1 // Remote input ); // setting callback _audioUnit.RenderCallback += new EventHandler <AudioUnitEventArgs>(_audioUnit_RenderCallback); // initialize _audioUnit.Initialize(); }
void prepareAudioUnit() { // AudioSession AudioSession.Initialize(); AudioSession.SetActive(true); AudioSession.Category = AudioSessionCategory.PlayAndRecord; AudioSession.PreferredHardwareIOBufferDuration = 0.005f; // Getting AudioComponent Remote output _audioComponent = AudioComponent.FindComponent(AudioTypeOutput.Remote); // creating an audio unit instance _audioUnit = new AudioUnit(_audioComponent); // turning on microphone _audioUnit.SetEnableIO(true, AudioUnitScopeType.Input, 1 // Remote Input ); // setting audio format _audioUnit.SetAudioFormat(_dstFormat, AudioUnitScopeType.Input, 0 // Remote Output ); var format = AudioStreamBasicDescription.CreateLinearPCM(_sampleRate, bitsPerChannel: 32); format.FormatFlags = AudioStreamBasicDescription.AudioFormatFlagsAudioUnitCanonical; _audioUnit.SetAudioFormat(format, AudioUnitScopeType.Output, 1); // setting callback method _audioUnit.SetRenderCallback(_audioUnit_RenderCallback, AudioUnitScopeType.Global); _audioUnit.Initialize(); _audioUnit.Start(); }
private void startTalking(UdpClient audioCaller) { //Stop old recording session //Generate new WaveFormat // recorder.WaveFormat = new WaveFormat(16000, 16, 1); // recorder.BufferMilliseconds = 50; // recorder.DataAvailable += SendAudio; //Add event to SendAudio // recorder = new InputAudioQueue (playerFormat); // // // for (int i = 0; i < BUFFERCOUNT; i++) { // IntPtr aBUff; // //recorder.AllocateBuffer (AUDIOBUFFERSIZE, out aBUff); // byteSize = AUDIOBUFFERSIZE * playerFormat.BytesPerPacket; // recorder.AllocateBufferWithPacketDescriptors (byteSize, AUDIOBUFFERSIZE, out aBUff); // recorder.EnqueueBuffer (aBUff, byteSize, null); // Console.WriteLine ("Buffer allocated, enqueueing"); // } //New stuffs var inputComponent = AudioComponent.FindNextComponent( null, new AudioComponentDescription { ComponentFlags = 0, ComponentFlagsMask = 0, ComponentManufacturer = AudioComponentManufacturerType.Apple, ComponentSubType = (int)AudioTypeOutput.Remote, ComponentType = AudioComponentType.Output }); recorder = inputComponent.CreateAudioUnit(); recorder.SetEnableIO(true, AudioUnitScopeType.Input, inputBus); recorder.SetEnableIO(false, AudioUnitScopeType.Output, outputBus); var audioFormat = new AudioStreamBasicDescription { SampleRate = Globals.SAMPLERATE, Format = AudioFormatType.LinearPCM, FormatFlags = AudioFormatFlags.IsSignedInteger | AudioFormatFlags.IsPacked, FramesPerPacket = 1, ChannelsPerFrame = 1, BitsPerChannel = 16, BytesPerPacket = 2, BytesPerFrame = 2 }; recorder.SetAudioFormat(audioFormat, AudioUnitScopeType.Output, inputBus); recorder.SetAudioFormat(audioFormat, AudioUnitScopeType.Input, outputBus); recorder.SetInputCallback(AudioInputCallBack, AudioUnitScopeType.Global, inputBus); // TODO: Disable buffers (requires interop) aBuffer = new AudioBuffer { NumberChannels = 1, DataByteSize = 512 * 2, Data = System.Runtime.InteropServices.Marshal.AllocHGlobal(512 * 2) }; isTalking = true; //recorder.InputCompleted += SendAudio; //recorder.Start (); recorder.Initialize(); recorder.Start(); }
void prepareAudioUnit() { // AudioSession AudioSession.Initialize(); AudioSession.SetActive(true); AudioSession.Category = AudioSessionCategory.PlayAndRecord; AudioSession.PreferredHardwareIOBufferDuration = 0.01f; // Creating AudioComponentDescription instance of RemoteIO Audio Unit var cd = new AudioComponentDescription() { componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output, componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO, componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple, componentFlags = 0, componentFlagsMask = 0 }; // Getting AudioComponent from the description _component = AudioComponent.FindComponent(cd); // Getting Audiounit _audioUnit = AudioUnit.CreateInstance(_component); // turning on microphone _audioUnit.SetEnableIO(true, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 1 // Remote Input ); // setting AudioStreamBasicDescription int AudioUnitSampleTypeSize = (MonoTouch.ObjCRuntime.Runtime.Arch == MonoTouch.ObjCRuntime.Arch.SIMULATOR) ? sizeof(float) : sizeof(uint); AudioStreamBasicDescription audioFormat = new AudioStreamBasicDescription() { SampleRate = _sampleRate, Format = AudioFormatType.LinearPCM, //kAudioFormatFlagsAudioUnitCanonical = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked | kAudioFormatFlagIsNonInterleaved | (kAudioUnitSampleFractionBits << kLinearPCMFormatFlagsSampleFractionShift), FormatFlags = (AudioFormatFlags)((int)AudioFormatFlags.IsSignedInteger | (int)AudioFormatFlags.IsPacked | (int)AudioFormatFlags.IsNonInterleaved | (int)(kAudioUnitSampleFractionBits << (int)AudioFormatFlags.LinearPCMSampleFractionShift)), ChannelsPerFrame = 2, BytesPerPacket = AudioUnitSampleTypeSize, BytesPerFrame = AudioUnitSampleTypeSize, FramesPerPacket = 1, BitsPerChannel = 8 * AudioUnitSampleTypeSize, Reserved = 0 }; _audioUnit.SetAudioFormat(audioFormat, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 0 // Remote output ); _audioUnit.SetAudioFormat(audioFormat, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Output, 1 // Remote input ); // setting callback /* * if (MonoTouch.ObjCRuntime.Runtime.Arch == MonoTouch.ObjCRuntime.Arch.SIMULATOR) * _audioUnit.RenderCallback += new EventHandler<AudioUnitEventArgs>(simulator_callback); * else * _audioUnit.RenderCallback += new EventHandler<AudioUnitEventArgs>(device_callback); */ _audioUnit.RenderCallback += new EventHandler <AudioUnitEventArgs>(_callback); // initialize _audioUnit.Initialize(); }