AVFAudio (moe.platform.ios API)

java.lang.Object
- apple.avfaudio.c.AVFAudio

public final class AVFAudio
extends java.lang.Object

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static java.lang.String`	`AVAudioBitRateStrategy_Constant()` values for AVEncoderBitRateStrategyKey
`static java.lang.String`	`AVAudioBitRateStrategy_LongTermAverage()`
`static java.lang.String`	`AVAudioBitRateStrategy_Variable()`
`static java.lang.String`	`AVAudioBitRateStrategy_VariableConstrained()`
`static java.lang.String`	`AVAudioEngineConfigurationChangeNotification()` [@constant] AVAudioEngineConfigurationChangeNotification
`static java.lang.String`	`AVAudioFileTypeKey()` value is an integer (audio file type) from AudioFile.h
`static AVAudio3DAngularOrientation`	`AVAudioMake3DAngularOrientation(float yaw, float pitch, float roll)` Creates and returns an AVAudio3DAngularOrientation object
`static AVAudio3DPoint`	`AVAudioMake3DPoint(float x, float y, float z)` Creates and returns an AVAudio3DPoint object
`static AVAudio3DPoint`	`AVAudioMake3DVector(float x, float y, float z)` Creates and returns an AVAudio3DVector object
`static AVAudio3DVectorOrientation`	`AVAudioMake3DVectorOrientation(AVAudio3DPoint forward, AVAudio3DPoint up)` Creates and returns an AVAudio3DVectorOrientation object
`static java.lang.String`	`AVAudioSessionCategoryAmbient()` Use this category for background sounds such as rain, car engine noise, etc.
`static java.lang.String`	`AVAudioSessionCategoryAudioProcessing()` Use this category when using a hardware codec or signal processor while not playing or recording audio.
`static java.lang.String`	`AVAudioSessionCategoryMultiRoute()` Use this category to customize the usage of available audio accessories and built-in audio hardware.
`static java.lang.String`	`AVAudioSessionCategoryPlayAndRecord()` Use this category when recording and playing back audio.
`static java.lang.String`	`AVAudioSessionCategoryPlayback()` Use this category for music tracks.
`static java.lang.String`	`AVAudioSessionCategoryRecord()` Use this category when recording audio.
`static java.lang.String`	`AVAudioSessionCategorySoloAmbient()` Use this category for background sounds.
`static java.lang.String`	`AVAudioSessionInterruptionNotification()` Notification sent to registered listeners when the system has interrupted the audio session and when the interruption has ended.
`static java.lang.String`	`AVAudioSessionInterruptionOptionKey()` Only present for end interruption events.
`static java.lang.String`	`AVAudioSessionInterruptionReasonKey()` Only present in begin interruption events.
`static java.lang.String`	`AVAudioSessionInterruptionTypeKey()` keys for AVAudioSessionInterruptionNotification Value is an NSNumber representing an AVAudioSessionInterruptionType
`static java.lang.String`	`AVAudioSessionInterruptionWasSuspendedKey()` Only present in begin interruption events, where the interruption is a direct result of the application being suspended by the operating sytem.
`static java.lang.String`	`AVAudioSessionLocationLower()`
`static java.lang.String`	`AVAudioSessionLocationUpper()`
`static java.lang.String`	`AVAudioSessionMediaServicesWereLostNotification()` Notification sent to registered listeners if the media server is killed.
`static java.lang.String`	`AVAudioSessionMediaServicesWereResetNotification()` Notification sent to registered listeners when the media server restarts.
`static java.lang.String`	`AVAudioSessionModeDefault()` The default mode
`static java.lang.String`	`AVAudioSessionModeGameChat()` Set by Game Kit on behalf of an application that uses a GKVoiceChat object; valid only with the AVAudioSessionCategoryPlayAndRecord category.
`static java.lang.String`	`AVAudioSessionModeMeasurement()` Appropriate for applications that wish to minimize the effect of system-supplied signal processing for input and/or output audio signals.
`static java.lang.String`	`AVAudioSessionModeMoviePlayback()` Engages appropriate output signal processing for movie playback scenarios.
`static java.lang.String`	`AVAudioSessionModeSpokenAudio()` Appropriate for applications which play spoken audio and wish to be paused (via audio session interruption) rather than ducked if another app (such as a navigation app) plays a spoken audio prompt.
`static java.lang.String`	`AVAudioSessionModeVideoChat()` Only valid with kAudioSessionCategory_PlayAndRecord.
`static java.lang.String`	`AVAudioSessionModeVideoRecording()` Only valid with AVAudioSessionCategoryPlayAndRecord or AVAudioSessionCategoryRecord.
`static java.lang.String`	`AVAudioSessionModeVoiceChat()` Only valid with AVAudioSessionCategoryPlayAndRecord.
`static java.lang.String`	`AVAudioSessionModeVoicePrompt()` Appropriate for applications which play audio using text to speech.
`static java.lang.String`	`AVAudioSessionOrientationBack()`
`static java.lang.String`	`AVAudioSessionOrientationBottom()`
`static java.lang.String`	`AVAudioSessionOrientationFront()`
`static java.lang.String`	`AVAudioSessionOrientationLeft()`
`static java.lang.String`	`AVAudioSessionOrientationRight()`
`static java.lang.String`	`AVAudioSessionOrientationTop()`
`static java.lang.String`	`AVAudioSessionPolarPatternCardioid()`
`static java.lang.String`	`AVAudioSessionPolarPatternOmnidirectional()`
`static java.lang.String`	`AVAudioSessionPolarPatternStereo()` If you select a data source with AVAudioSessionPolarPatternStereo, then you must call setPreferredInputOrientation:error: on your Audio Session so that left and right are presented from the correct directions.
`static java.lang.String`	`AVAudioSessionPolarPatternSubcardioid()`
`static java.lang.String`	`AVAudioSessionPortAirPlay()` Output on a remote Air Play device
`static java.lang.String`	`AVAudioSessionPortAVB()` Input or output connected via AVB (Audio Video Bridging)
`static java.lang.String`	`AVAudioSessionPortBluetoothA2DP()` Output on a Bluetooth A2DP device
`static java.lang.String`	`AVAudioSessionPortBluetoothHFP()` Input or output on a Bluetooth Hands-Free Profile device
`static java.lang.String`	`AVAudioSessionPortBluetoothLE()` Output on a Bluetooth Low Energy device
`static java.lang.String`	`AVAudioSessionPortBuiltInMic()` Built-in microphone on an iOS device
`static java.lang.String`	`AVAudioSessionPortBuiltInReceiver()` The speaker you hold to your ear when on a phone call
`static java.lang.String`	`AVAudioSessionPortBuiltInSpeaker()` Built-in speaker on an iOS device
`static java.lang.String`	`AVAudioSessionPortCarAudio()` Input or output via Car Audio
`static java.lang.String`	`AVAudioSessionPortDisplayPort()` Input or output connected via DisplayPort
`static java.lang.String`	`AVAudioSessionPortFireWire()` Input or output connected via FireWire
`static java.lang.String`	`AVAudioSessionPortHDMI()` Output via High-Definition Multimedia Interface
`static java.lang.String`	`AVAudioSessionPortHeadphones()` Headphone or headset output
`static java.lang.String`	`AVAudioSessionPortHeadsetMic()` Microphone on a wired headset.
`static java.lang.String`	`AVAudioSessionPortLineIn()` input port types Line level input on a dock connector
`static java.lang.String`	`AVAudioSessionPortLineOut()` Line level output on a dock connector
`static java.lang.String`	`AVAudioSessionPortPCI()` Input or output connected via the PCI (Peripheral Component Interconnect) bus
`static java.lang.String`	`AVAudioSessionPortThunderbolt()` Input or output connected via Thunderbolt
`static java.lang.String`	`AVAudioSessionPortUSBAudio()` Input or output on a Universal Serial Bus device
`static java.lang.String`	`AVAudioSessionPortVirtual()` Input or output that does not correspond to real audio hardware
`static java.lang.String`	`AVAudioSessionRouteChangeNotification()` Notification sent to registered listeners when an audio route change has occurred.
`static java.lang.String`	`AVAudioSessionRouteChangePreviousRouteKey()` value is AVAudioSessionRouteDescription *
`static java.lang.String`	`AVAudioSessionRouteChangeReasonKey()` keys for AVAudioSessionRouteChangeNotification value is an NSNumber representing an AVAudioSessionRouteChangeReason
`static java.lang.String`	`AVAudioSessionSilenceSecondaryAudioHintNotification()` Notification sent to registered listeners when they are in the foreground with an active audio session and primary audio from other applications starts and stops.
`static java.lang.String`	`AVAudioSessionSilenceSecondaryAudioHintTypeKey()` keys for AVAudioSessionSilenceSecondaryAudioHintNotification value is an NSNumber representing an AVAudioSessionSilenceSecondaryAudioHintType
`static java.lang.String`	`AVAudioSessionSpatialAudioEnabledKey()` keys for AVAudioSessionSpatialPlaybackCapabilitiesChangedNotification value is an NSNumber whose boolean value indicates if spatial audio enabled.
`static java.lang.String`	`AVAudioSessionSpatialPlaybackCapabilitiesChangedNotification()` Notification sent to registered listeners when spatial playback capabilities are changed due to a change in user preference.
`static java.lang.String`	`AVAudioUnitComponentManagerRegistrationsChangedNotification()` [@constant] AVAudioUnitComponentManagerRegistrationsChangedNotification
`static java.lang.String`	`AVAudioUnitComponentTagsDidChangeNotification()` The notification object is an AVAudioUnitComponent object
`static java.lang.String`	`AVAudioUnitManufacturerNameApple()` Standard Audio Unit Manufacturers
`static java.lang.String`	`AVAudioUnitTypeEffect()`
`static java.lang.String`	`AVAudioUnitTypeFormatConverter()`
`static java.lang.String`	`AVAudioUnitTypeGenerator()`
`static java.lang.String`	`AVAudioUnitTypeMIDIProcessor()`
`static java.lang.String`	`AVAudioUnitTypeMixer()`
`static java.lang.String`	`AVAudioUnitTypeMusicDevice()`
`static java.lang.String`	`AVAudioUnitTypeMusicEffect()`
`static java.lang.String`	`AVAudioUnitTypeOfflineEffect()`
`static java.lang.String`	`AVAudioUnitTypeOutput()` Standard Audio Unit Types
`static java.lang.String`	`AVAudioUnitTypePanner()`
`static java.lang.String`	`AVChannelLayoutKey()` value is an NSData containing an AudioChannelLayout
`static java.lang.String`	`AVEncoderAudioQualityForVBRKey()` value is an integer from enum AVAudioQuality.
`static java.lang.String`	`AVEncoderAudioQualityKey()` value is an integer from enum AVAudioQuality
`static java.lang.String`	`AVEncoderBitDepthHintKey()` value is an integer from 8 to 32
`static java.lang.String`	`AVEncoderBitRateKey()` value is an integer.
`static java.lang.String`	`AVEncoderBitRatePerChannelKey()` value is an integer
`static java.lang.String`	`AVEncoderBitRateStrategyKey()` value is an AVAudioBitRateStrategy constant.
`static java.lang.String`	`AVFormatIDKey()` value is an integer (format ID) from CoreAudioTypes.h
`static java.lang.String`	`AVLinearPCMBitDepthKey()` value is an integer, one of: 8, 16, 24, 32
`static java.lang.String`	`AVLinearPCMIsBigEndianKey()` value is a BOOL
`static java.lang.String`	`AVLinearPCMIsFloatKey()` value is a BOOL
`static java.lang.String`	`AVLinearPCMIsNonInterleaved()` value is a BOOL
`static AVBeatRange`	`AVMakeBeatRange(double startBeat, double lengthInBeats)`
`static java.lang.String`	`AVNumberOfChannelsKey()` value is an integer
`static java.lang.String`	`AVSampleRateConverterAlgorithm_Mastering()`
`static java.lang.String`	`AVSampleRateConverterAlgorithm_MinimumPhase()`
`static java.lang.String`	`AVSampleRateConverterAlgorithm_Normal()` values for AVSampleRateConverterAlgorithmKey
`static java.lang.String`	`AVSampleRateConverterAlgorithmKey()` value is an AVSampleRateConverterAlgorithm constant.
`static java.lang.String`	`AVSampleRateConverterAudioQualityKey()` value is an integer from enum AVAudioQuality
`static java.lang.String`	`AVSampleRateKey()` value is floating point in Hertz
`static java.lang.String`	`AVSpeechSynthesisIPANotationAttribute()` NSString, containing International Phonetic Alphabet (IPA) symbols.
`static java.lang.String`	`AVSpeechSynthesisVoiceIdentifierAlex()` Use the Alex identifier with voiceWithIdentifier:.
`static float`	`AVSpeechUtteranceDefaultSpeechRate()`
`static float`	`AVSpeechUtteranceMaximumSpeechRate()`
`static float`	`AVSpeechUtteranceMinimumSpeechRate()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - AVAudioMake3DPoint
```
public static AVAudio3DPoint AVAudioMake3DPoint(float x,
                                                float y,
                                                float z)
```
    Creates and returns an AVAudio3DPoint object
  - AVAudioMake3DVector
```
public static AVAudio3DPoint AVAudioMake3DVector(float x,
                                                 float y,
                                                 float z)
```
    Creates and returns an AVAudio3DVector object
  - AVAudioMake3DVectorOrientation
```
public static AVAudio3DVectorOrientation AVAudioMake3DVectorOrientation(AVAudio3DPoint forward,
                                                                        AVAudio3DPoint up)
```
    Creates and returns an AVAudio3DVectorOrientation object
  - AVAudioMake3DAngularOrientation
```
public static AVAudio3DAngularOrientation AVAudioMake3DAngularOrientation(float yaw,
                                                                          float pitch,
                                                                          float roll)
```
    Creates and returns an AVAudio3DAngularOrientation object
  - AVMakeBeatRange
```
public static AVBeatRange AVMakeBeatRange(double startBeat,
                                          double lengthInBeats)
```
  - AVAudioEngineConfigurationChangeNotification
```
public static java.lang.String AVAudioEngineConfigurationChangeNotification()
```
    [@constant] AVAudioEngineConfigurationChangeNotification
    A notification generated on engine configuration changes when rendering to/from an audio device.
    Register for this notification on your engine instances, as follows:
``` [[NSNotificationCenter defaultCenter] addObserver: myObject selector: @selector(handleInterruption:) name: AVAudioEngineConfigurationChangeNotification object: engine]; ```
When the engine's I/O unit observes a change to the audio input or output hardware's channel count or sample rate, the engine stops itself (see `AVAudioEngine(stop)`), and issues this notification. The nodes remain attached and connected with previously set formats. However, the app must reestablish connections if the connection formats need to change (e.g. in an input node chain, connections must follow the hardware sample rate, while in an output only chain, the output node supports rate conversion).
Note that the engine must not be deallocated from within the client's notification handler because the callback happens on an internal dispatch queue and can deadlock while trying to synchronously teardown the engine.
- AVFormatIDKey
```
  public static java.lang.String AVFormatIDKey()
```
  value is an integer (format ID) from CoreAudioTypes.h
- AVSampleRateKey
```
  public static java.lang.String AVSampleRateKey()
```
  value is floating point in Hertz
- AVNumberOfChannelsKey
```
  public static java.lang.String AVNumberOfChannelsKey()
```
  value is an integer
- AVLinearPCMBitDepthKey
```
  public static java.lang.String AVLinearPCMBitDepthKey()
```
  value is an integer, one of: 8, 16, 24, 32
- AVLinearPCMIsBigEndianKey
```
  public static java.lang.String AVLinearPCMIsBigEndianKey()
```
  value is a BOOL
- AVLinearPCMIsFloatKey
```
  public static java.lang.String AVLinearPCMIsFloatKey()
```
  value is a BOOL
- AVLinearPCMIsNonInterleaved
```
  public static java.lang.String AVLinearPCMIsNonInterleaved()
```
  value is a BOOL
- AVAudioFileTypeKey
```
  public static java.lang.String AVAudioFileTypeKey()
```
  value is an integer (audio file type) from AudioFile.h
- AVEncoderAudioQualityKey
```
  public static java.lang.String AVEncoderAudioQualityKey()
```
  value is an integer from enum AVAudioQuality
- AVEncoderAudioQualityForVBRKey
```
  public static java.lang.String AVEncoderAudioQualityForVBRKey()
```
  value is an integer from enum AVAudioQuality. only relevant for AVAudioBitRateStrategy_Variable
- AVEncoderBitRateKey
```
  public static java.lang.String AVEncoderBitRateKey()
```
  value is an integer.
- AVEncoderBitRatePerChannelKey
```
  public static java.lang.String AVEncoderBitRatePerChannelKey()
```
  value is an integer
- AVEncoderBitRateStrategyKey
```
  public static java.lang.String AVEncoderBitRateStrategyKey()
```
  value is an AVAudioBitRateStrategy constant. see below.
- AVEncoderBitDepthHintKey
```
  public static java.lang.String AVEncoderBitDepthHintKey()
```
  value is an integer from 8 to 32
- AVSampleRateConverterAlgorithmKey
```
  public static java.lang.String AVSampleRateConverterAlgorithmKey()
```
  value is an AVSampleRateConverterAlgorithm constant. see below.
- AVSampleRateConverterAudioQualityKey
```
  public static java.lang.String AVSampleRateConverterAudioQualityKey()
```
  value is an integer from enum AVAudioQuality
- AVChannelLayoutKey
```
  public static java.lang.String AVChannelLayoutKey()
```
  value is an NSData containing an AudioChannelLayout
- AVAudioBitRateStrategy_Constant
```
  public static java.lang.String AVAudioBitRateStrategy_Constant()
```
  values for AVEncoderBitRateStrategyKey
- AVAudioBitRateStrategy_LongTermAverage
```
  public static java.lang.String AVAudioBitRateStrategy_LongTermAverage()
```
- AVAudioBitRateStrategy_VariableConstrained
```
  public static java.lang.String AVAudioBitRateStrategy_VariableConstrained()
```
- AVAudioBitRateStrategy_Variable
```
  public static java.lang.String AVAudioBitRateStrategy_Variable()
```
- AVSampleRateConverterAlgorithm_Normal
```
  public static java.lang.String AVSampleRateConverterAlgorithm_Normal()
```
  values for AVSampleRateConverterAlgorithmKey
- AVSampleRateConverterAlgorithm_Mastering
```
  public static java.lang.String AVSampleRateConverterAlgorithm_Mastering()
```
- AVSampleRateConverterAlgorithm_MinimumPhase
```
  public static java.lang.String AVSampleRateConverterAlgorithm_MinimumPhase()
```
- AVAudioSessionPortLineIn
```
  public static java.lang.String AVAudioSessionPortLineIn()
```
  input port types Line level input on a dock connector
- AVAudioSessionPortBuiltInMic
```
  public static java.lang.String AVAudioSessionPortBuiltInMic()
```
  Built-in microphone on an iOS device
- AVAudioSessionPortHeadsetMic
```
  public static java.lang.String AVAudioSessionPortHeadsetMic()
```
  Microphone on a wired headset. Headset refers to an accessory that has headphone outputs paired with a microphone.
- AVAudioSessionPortLineOut
```
  public static java.lang.String AVAudioSessionPortLineOut()
```
  Line level output on a dock connector
- AVAudioSessionPortHeadphones
```
  public static java.lang.String AVAudioSessionPortHeadphones()
```
  Headphone or headset output
- AVAudioSessionPortBluetoothA2DP
```
  public static java.lang.String AVAudioSessionPortBluetoothA2DP()
```
  Output on a Bluetooth A2DP device
- AVAudioSessionPortBuiltInReceiver
```
  public static java.lang.String AVAudioSessionPortBuiltInReceiver()
```
  The speaker you hold to your ear when on a phone call
- AVAudioSessionPortBuiltInSpeaker
```
  public static java.lang.String AVAudioSessionPortBuiltInSpeaker()
```
  Built-in speaker on an iOS device
- AVAudioSessionPortHDMI
```
  public static java.lang.String AVAudioSessionPortHDMI()
```
  Output via High-Definition Multimedia Interface
- AVAudioSessionPortAirPlay
```
  public static java.lang.String AVAudioSessionPortAirPlay()
```
  Output on a remote Air Play device
- AVAudioSessionPortBluetoothLE
```
  public static java.lang.String AVAudioSessionPortBluetoothLE()
```
  Output on a Bluetooth Low Energy device
- AVAudioSessionPortBluetoothHFP
```
  public static java.lang.String AVAudioSessionPortBluetoothHFP()
```
  Input or output on a Bluetooth Hands-Free Profile device
- AVAudioSessionPortUSBAudio
```
  public static java.lang.String AVAudioSessionPortUSBAudio()
```
  Input or output on a Universal Serial Bus device
- AVAudioSessionPortCarAudio
```
  public static java.lang.String AVAudioSessionPortCarAudio()
```
  Input or output via Car Audio
- AVAudioSessionPortVirtual
```
  public static java.lang.String AVAudioSessionPortVirtual()
```
  Input or output that does not correspond to real audio hardware
- AVAudioSessionPortPCI
```
  public static java.lang.String AVAudioSessionPortPCI()
```
  Input or output connected via the PCI (Peripheral Component Interconnect) bus
- AVAudioSessionPortFireWire
```
  public static java.lang.String AVAudioSessionPortFireWire()
```
  Input or output connected via FireWire
- AVAudioSessionPortDisplayPort
```
  public static java.lang.String AVAudioSessionPortDisplayPort()
```
  Input or output connected via DisplayPort
- AVAudioSessionPortAVB
```
  public static java.lang.String AVAudioSessionPortAVB()
```
  Input or output connected via AVB (Audio Video Bridging)
- AVAudioSessionPortThunderbolt
```
  public static java.lang.String AVAudioSessionPortThunderbolt()
```
  Input or output connected via Thunderbolt
- AVAudioSessionCategoryAmbient
```
  public static java.lang.String AVAudioSessionCategoryAmbient()
```
  Use this category for background sounds such as rain, car engine noise, etc. Mixes with other music.
- AVAudioSessionCategorySoloAmbient
```
  public static java.lang.String AVAudioSessionCategorySoloAmbient()
```
  Use this category for background sounds. Other music will stop playing.
- AVAudioSessionCategoryPlayback
```
  public static java.lang.String AVAudioSessionCategoryPlayback()
```
  Use this category for music tracks.
- AVAudioSessionCategoryRecord
```
  public static java.lang.String AVAudioSessionCategoryRecord()
```
  Use this category when recording audio.
- AVAudioSessionCategoryPlayAndRecord
```
  public static java.lang.String AVAudioSessionCategoryPlayAndRecord()
```
  Use this category when recording and playing back audio.
- AVAudioSessionCategoryAudioProcessing
```
  public static java.lang.String AVAudioSessionCategoryAudioProcessing()
```
  Use this category when using a hardware codec or signal processor while not playing or recording audio.
- AVAudioSessionCategoryMultiRoute
```
  public static java.lang.String AVAudioSessionCategoryMultiRoute()
```
  Use this category to customize the usage of available audio accessories and built-in audio hardware. For example, this category provides an application with the ability to use an available USB output and headphone output simultaneously for separate, distinct streams of audio data. Use of this category by an application requires a more detailed knowledge of, and interaction with, the capabilities of the available audio routes. May be used for input, output, or both. Note that not all output types and output combinations are eligible for multi-route. Input is limited to the last-in input port. Eligible inputs consist of the following: AVAudioSessionPortUSBAudio, AVAudioSessionPortHeadsetMic, and AVAudioSessionPortBuiltInMic. Eligible outputs consist of the following: AVAudioSessionPortUSBAudio, AVAudioSessionPortLineOut, AVAudioSessionPortHeadphones, AVAudioSessionPortHDMI, and AVAudioSessionPortBuiltInSpeaker. Note that AVAudioSessionPortBuiltInSpeaker is only allowed to be used when there are no other eligible outputs connected.
- AVAudioSessionModeDefault
```
  public static java.lang.String AVAudioSessionModeDefault()
```
  The default mode
- AVAudioSessionModeVoiceChat
```
  public static java.lang.String AVAudioSessionModeVoiceChat()
```
  Only valid with AVAudioSessionCategoryPlayAndRecord. Appropriate for Voice over IP (VoIP) applications. Reduces the number of allowable audio routes to be only those that are appropriate for VoIP applications and may engage appropriate system-supplied signal processing. Has the side effect of setting AVAudioSessionCategoryOptionAllowBluetooth
- AVAudioSessionModeGameChat
```
  public static java.lang.String AVAudioSessionModeGameChat()
```
  Set by Game Kit on behalf of an application that uses a GKVoiceChat object; valid only with the AVAudioSessionCategoryPlayAndRecord category. Do not set this mode directly. If you need similar behavior and are not using a GKVoiceChat object, use AVAudioSessionModeVoiceChat instead.
- AVAudioSessionModeVideoRecording
```
  public static java.lang.String AVAudioSessionModeVideoRecording()
```
  Only valid with AVAudioSessionCategoryPlayAndRecord or AVAudioSessionCategoryRecord. Modifies the audio routing options and may engage appropriate system-supplied signal processing.
- AVAudioSessionModeMeasurement
```
  public static java.lang.String AVAudioSessionModeMeasurement()
```
  Appropriate for applications that wish to minimize the effect of system-supplied signal processing for input and/or output audio signals.
- AVAudioSessionModeMoviePlayback
```
  public static java.lang.String AVAudioSessionModeMoviePlayback()
```
  Engages appropriate output signal processing for movie playback scenarios. Currently only applied during playback over built-in speaker.
- AVAudioSessionModeVideoChat
```
  public static java.lang.String AVAudioSessionModeVideoChat()
```
  Only valid with kAudioSessionCategory_PlayAndRecord. Reduces the number of allowable audio routes to be only those that are appropriate for video chat applications. May engage appropriate system-supplied signal processing. Has the side effect of setting AVAudioSessionCategoryOptionAllowBluetooth and AVAudioSessionCategoryOptionDefaultToSpeaker.
- AVAudioSessionModeSpokenAudio
```
  public static java.lang.String AVAudioSessionModeSpokenAudio()
```
  Appropriate for applications which play spoken audio and wish to be paused (via audio session interruption) rather than ducked if another app (such as a navigation app) plays a spoken audio prompt. Examples of apps that would use this are podcast players and audio books. For more information, see the related category option AVAudioSessionCategoryOptionInterruptSpokenAudioAndMixWithOthers.
- AVAudioSessionModeVoicePrompt
```
  public static java.lang.String AVAudioSessionModeVoicePrompt()
```
  Appropriate for applications which play audio using text to speech. Setting this mode allows for different routing behaviors when connected to certain audio devices such as CarPlay. An example of an app that would use this mode is a turn by turn navigation app that plays short prompts to the user. Typically, these same types of applications would also configure their session to use AVAudioSessionCategoryOptionDuckOthers and AVAudioSessionCategoryOptionInterruptSpokenAudioAndMixWithOthers
- AVAudioSessionLocationUpper
```
  public static java.lang.String AVAudioSessionLocationUpper()
```
- AVAudioSessionLocationLower
```
  public static java.lang.String AVAudioSessionLocationLower()
```
- AVAudioSessionOrientationTop
```
  public static java.lang.String AVAudioSessionOrientationTop()
```
- AVAudioSessionOrientationBottom
```
  public static java.lang.String AVAudioSessionOrientationBottom()
```
- AVAudioSessionOrientationFront
```
  public static java.lang.String AVAudioSessionOrientationFront()
```
- AVAudioSessionOrientationBack
```
  public static java.lang.String AVAudioSessionOrientationBack()
```
- AVAudioSessionOrientationLeft
```
  public static java.lang.String AVAudioSessionOrientationLeft()
```
- AVAudioSessionOrientationRight
```
  public static java.lang.String AVAudioSessionOrientationRight()
```
- AVAudioSessionPolarPatternOmnidirectional
```
  public static java.lang.String AVAudioSessionPolarPatternOmnidirectional()
```
- AVAudioSessionPolarPatternCardioid
```
  public static java.lang.String AVAudioSessionPolarPatternCardioid()
```
- AVAudioSessionPolarPatternSubcardioid
```
  public static java.lang.String AVAudioSessionPolarPatternSubcardioid()
```
- AVAudioSessionPolarPatternStereo
```
  public static java.lang.String AVAudioSessionPolarPatternStereo()
```
  If you select a data source with AVAudioSessionPolarPatternStereo, then you must call setPreferredInputOrientation:error: on your Audio Session so that left and right are presented from the correct directions.
- AVAudioSessionInterruptionNotification
```
  public static java.lang.String AVAudioSessionInterruptionNotification()
```
  Notification sent to registered listeners when the system has interrupted the audio session and when the interruption has ended.
  Check the notification's userInfo dictionary for the interruption type, which is either Begin or End. In the case of an end interruption notification, check the userInfo dictionary for AVAudioSessionInterruptionOptions that indicate whether audio playback should resume. In the case of a begin interruption notification, the reason for the interruption can be found within the info dictionary under the key AVAudioSessionInterruptionReasonKey.
- AVAudioSessionRouteChangeNotification
```
  public static java.lang.String AVAudioSessionRouteChangeNotification()
```
  Notification sent to registered listeners when an audio route change has occurred.
  Check the notification's userInfo dictionary for the route change reason and for a description of the previous audio route.
- AVAudioSessionMediaServicesWereLostNotification
```
  public static java.lang.String AVAudioSessionMediaServicesWereLostNotification()
```
  Notification sent to registered listeners if the media server is killed.
  In the event that the server is killed, take appropriate steps to handle requests that come in before the server resets. See Technical Q&A QA1749.
- AVAudioSessionMediaServicesWereResetNotification
```
  public static java.lang.String AVAudioSessionMediaServicesWereResetNotification()
```
  Notification sent to registered listeners when the media server restarts.
  In the event that the server restarts, take appropriate steps to re-initialize any audio objects used by your application. See Technical Q&A QA1749.
- AVAudioSessionSilenceSecondaryAudioHintNotification
```
  public static java.lang.String AVAudioSessionSilenceSecondaryAudioHintNotification()
```
  Notification sent to registered listeners when they are in the foreground with an active audio session and primary audio from other applications starts and stops.
  Check the notification's userInfo dictionary for the notification type, which is either Begin or End. Foreground applications may use this notification as a hint to enable or disable audio that is secondary to the functionality of the application. For more information, see the related property secondaryAudioShouldBeSilencedHint.
- AVAudioSessionSpatialPlaybackCapabilitiesChangedNotification
```
  public static java.lang.String AVAudioSessionSpatialPlaybackCapabilitiesChangedNotification()
```
  Notification sent to registered listeners when spatial playback capabilities are changed due to a change in user preference.
  Check the notification's userInfo dictionary for AVAudioSessionSpatialAudioEnabledKey to check if spatial audio is enabled.
  Observers of this notification should also observe AVAudioSessionRouteChangeNotification since a route change may also result in a change in the ability for the system to play spatial audio. Use AVAudioSessionPortDescription's isSpatialAudioEnabled property to check if the current route supports spatialized playback.
- AVAudioSessionSpatialAudioEnabledKey
```
  public static java.lang.String AVAudioSessionSpatialAudioEnabledKey()
```
  keys for AVAudioSessionSpatialPlaybackCapabilitiesChangedNotification value is an NSNumber whose boolean value indicates if spatial audio enabled.
- AVAudioSessionInterruptionTypeKey
```
  public static java.lang.String AVAudioSessionInterruptionTypeKey()
```
  keys for AVAudioSessionInterruptionNotification Value is an NSNumber representing an AVAudioSessionInterruptionType
- AVAudioSessionInterruptionOptionKey
```
  public static java.lang.String AVAudioSessionInterruptionOptionKey()
```
  Only present for end interruption events. Value is of type AVAudioSessionInterruptionOptions.
- AVAudioSessionInterruptionReasonKey
```
  public static java.lang.String AVAudioSessionInterruptionReasonKey()
```
  Only present in begin interruption events. Value is of type AVAudioSessionInterruptionReason.
- AVAudioSessionInterruptionWasSuspendedKey
```
  public static java.lang.String AVAudioSessionInterruptionWasSuspendedKey()
```
  Only present in begin interruption events, where the interruption is a direct result of the application being suspended by the operating sytem. Value is a boolean NSNumber, where a true value indicates that the interruption is the result of the application being suspended, rather than being interrupted by another audio session.
  Starting in iOS 10, the system will deactivate the audio session of most apps in response to the app process being suspended. When the app starts running again, it will receive the notification that its session has been deactivated by the system. Note that the notification is necessarily delayed in time, due to the fact that the application was suspended at the time the session was deactivated by the system and the notification can only be delivered once the app is running again.
- AVAudioSessionRouteChangeReasonKey
```
  public static java.lang.String AVAudioSessionRouteChangeReasonKey()
```
  keys for AVAudioSessionRouteChangeNotification value is an NSNumber representing an AVAudioSessionRouteChangeReason
- AVAudioSessionRouteChangePreviousRouteKey
```
  public static java.lang.String AVAudioSessionRouteChangePreviousRouteKey()
```
  value is AVAudioSessionRouteDescription *
- AVAudioSessionSilenceSecondaryAudioHintTypeKey
```
  public static java.lang.String AVAudioSessionSilenceSecondaryAudioHintTypeKey()
```
  keys for AVAudioSessionSilenceSecondaryAudioHintNotification value is an NSNumber representing an AVAudioSessionSilenceSecondaryAudioHintType
- AVAudioUnitTypeOutput
```
  public static java.lang.String AVAudioUnitTypeOutput()
```
  Standard Audio Unit Types
- AVAudioUnitTypeMusicDevice
```
  public static java.lang.String AVAudioUnitTypeMusicDevice()
```
- AVAudioUnitTypeMusicEffect
```
  public static java.lang.String AVAudioUnitTypeMusicEffect()
```
- AVAudioUnitTypeFormatConverter
```
  public static java.lang.String AVAudioUnitTypeFormatConverter()
```
- AVAudioUnitTypeEffect
```
  public static java.lang.String AVAudioUnitTypeEffect()
```
- AVAudioUnitTypeMixer
```
  public static java.lang.String AVAudioUnitTypeMixer()
```
- AVAudioUnitTypePanner
```
  public static java.lang.String AVAudioUnitTypePanner()
```
- AVAudioUnitTypeGenerator
```
  public static java.lang.String AVAudioUnitTypeGenerator()
```
- AVAudioUnitTypeOfflineEffect
```
  public static java.lang.String AVAudioUnitTypeOfflineEffect()
```
- AVAudioUnitTypeMIDIProcessor
```
  public static java.lang.String AVAudioUnitTypeMIDIProcessor()
```
- AVAudioUnitManufacturerNameApple
```
  public static java.lang.String AVAudioUnitManufacturerNameApple()
```
  Standard Audio Unit Manufacturers
- AVAudioUnitComponentTagsDidChangeNotification
```
  public static java.lang.String AVAudioUnitComponentTagsDidChangeNotification()
```
  The notification object is an AVAudioUnitComponent object
- AVAudioUnitComponentManagerRegistrationsChangedNotification
```
  public static java.lang.String AVAudioUnitComponentManagerRegistrationsChangedNotification()
```
  [@constant] AVAudioUnitComponentManagerRegistrationsChangedNotification
  A notification generated when AVAudioUnitComponentManager updates its list of components.
  Register for this notification on the shared AVAudioUnitComponentManager instance, as follows:
``` [[NSNotificationCenter defaultCenter] addObserver: myObject selector: @selector(registrationsChanged:) name: AVAudioUnitComponentManagerRegistrationsChangedNotification object: [AVAudioUnitComponentManager sharedAudioUnitComponentManager]]; ```
  - AVSpeechUtteranceMinimumSpeechRate
```
public static float AVSpeechUtteranceMinimumSpeechRate()
```
  - AVSpeechUtteranceMaximumSpeechRate
```
public static float AVSpeechUtteranceMaximumSpeechRate()
```
  - AVSpeechUtteranceDefaultSpeechRate
```
public static float AVSpeechUtteranceDefaultSpeechRate()
```
  - AVSpeechSynthesisVoiceIdentifierAlex
```
public static java.lang.String AVSpeechSynthesisVoiceIdentifierAlex()
```
    Use the Alex identifier with voiceWithIdentifier:. If the voice is present on the system, an AVSpeechSynthesisVoice will be returned. Alex is en-US only.
  - AVSpeechSynthesisIPANotationAttribute
```
public static java.lang.String AVSpeechSynthesisIPANotationAttribute()
```
    NSString, containing International Phonetic Alphabet (IPA) symbols. Controls pronunciation of a certain word or phrase, e.g. a proper name.

Class AVFAudio

Method Summary

Methods inherited from class java.lang.Object

Method Detail

AVAudioMake3DPoint

AVAudioMake3DVector

AVAudioMake3DVectorOrientation

AVAudioMake3DAngularOrientation

AVMakeBeatRange

AVAudioEngineConfigurationChangeNotification

AVFormatIDKey

AVSampleRateKey

AVNumberOfChannelsKey

AVLinearPCMBitDepthKey

AVLinearPCMIsBigEndianKey

AVLinearPCMIsFloatKey

AVLinearPCMIsNonInterleaved

AVAudioFileTypeKey

AVEncoderAudioQualityKey

AVEncoderAudioQualityForVBRKey

AVEncoderBitRateKey

AVEncoderBitRatePerChannelKey

AVEncoderBitRateStrategyKey

AVEncoderBitDepthHintKey

AVSampleRateConverterAlgorithmKey

AVSampleRateConverterAudioQualityKey

AVChannelLayoutKey

AVAudioBitRateStrategy_Constant

AVAudioBitRateStrategy_LongTermAverage

AVAudioBitRateStrategy_VariableConstrained

AVAudioBitRateStrategy_Variable

AVSampleRateConverterAlgorithm_Normal

AVSampleRateConverterAlgorithm_Mastering

AVSampleRateConverterAlgorithm_MinimumPhase

AVAudioSessionPortLineIn

AVAudioSessionPortBuiltInMic

AVAudioSessionPortHeadsetMic

AVAudioSessionPortLineOut

AVAudioSessionPortHeadphones

AVAudioSessionPortBluetoothA2DP

AVAudioSessionPortBuiltInReceiver

AVAudioSessionPortBuiltInSpeaker

AVAudioSessionPortHDMI

AVAudioSessionPortAirPlay

AVAudioSessionPortBluetoothLE

AVAudioSessionPortBluetoothHFP

AVAudioSessionPortUSBAudio

AVAudioSessionPortCarAudio

AVAudioSessionPortVirtual

AVAudioSessionPortPCI

AVAudioSessionPortFireWire

AVAudioSessionPortDisplayPort

AVAudioSessionPortAVB

AVAudioSessionPortThunderbolt

AVAudioSessionCategoryAmbient

AVAudioSessionCategorySoloAmbient

AVAudioSessionCategoryPlayback

AVAudioSessionCategoryRecord

AVAudioSessionCategoryPlayAndRecord

AVAudioSessionCategoryAudioProcessing

AVAudioSessionCategoryMultiRoute

AVAudioSessionModeDefault

AVAudioSessionModeVoiceChat

AVAudioSessionModeGameChat

AVAudioSessionModeVideoRecording

AVAudioSessionModeMeasurement

AVAudioSessionModeMoviePlayback

AVAudioSessionModeVideoChat

AVAudioSessionModeSpokenAudio

AVAudioSessionModeVoicePrompt

AVAudioSessionLocationUpper

AVAudioSessionLocationLower

AVAudioSessionOrientationTop

AVAudioSessionOrientationBottom

AVAudioSessionOrientationFront

AVAudioSessionOrientationBack

AVAudioSessionOrientationLeft

AVAudioSessionOrientationRight

AVAudioSessionPolarPatternOmnidirectional

AVAudioSessionPolarPatternCardioid