AudioToolbox iOS 12.4 to 13.0 API Differences

AUAudioUnit.h
Added AUAudioUnit.userPresets
Added -[AUAudioUnit saveUserPreset:error:]
Added -[AUAudioUnit deleteUserPreset:error:]
Added -[AUAudioUnit presetStateFor:error:]
Added AUAudioUnit.supportsUserPresets
Modified AUAudioUnit.parameterTree
Declaration
From@property (nonatomic, readonly) AUParameterTree *parameterTree
To@property (nonatomic, retain) AUParameterTree *parameterTree

AUComponent.h
Added #def INTERAPP_AUDIO_DEPRECATED
Added kAudioUnitErr_InvalidFilePath
Added kAudioUnitErr_MissingKey
Modified kAudioUnitSubType_AUiPodTime
AvailabilityReplacement
FromAvailablenone
ToDeprecatedkAudioUnitSubType_NewTimePitch

Modified kAudioUnitSubType_AUiPodEQ
AvailabilityReplacement
FromAvailablenone
ToDeprecatedkAudioUnitSubType_GraphicEQ

Modified AudioOutputUnitPublish()
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedInter-App Audio API is deprecated in favor of Audio Units

Modified AudioOutputUnitGetHostIcon()
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedInter-App Audio API is deprecated in favor of Audio Units

Modified AudioComponentGetIcon()
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedInter-App Audio API is deprecated in favor of Audio Units

Modified AudioComponentGetLastActiveTime()
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedInter-App Audio API is deprecated in favor of Audio Units

AudioCodec.h
Added kAudioCodecPropertyEmploysDependentPackets
Added kAudioCodecPropertyBitRateForVBR
AudioFile.h
Added kAudioFileLATMInLOASType
Added kAudioFileInvalidPacketDependencyError
Added AudioPacketRangeByteCountTranslation
Added AudioPacketRollDistanceTranslation
Added AudioIndependentPacketTranslation
Added AudioPacketDependencyInfoTranslation
Added kAudioFilePropertyRestrictsRandomAccess
Added kAudioFilePropertyPacketToRollDistance
Added kAudioFilePropertyPreviousIndependentPacket
Added kAudioFilePropertyNextIndependentPacket
Added kAudioFilePropertyPacketToDependencyInfo
Added kAudioFilePropertyPacketRangeByteCountUpperBound
AudioFileStream.h
Added kAudioFileStreamProperty_RestrictsRandomAccess
Added kAudioFileStreamProperty_PacketToRollDistance
Added kAudioFileStreamProperty_PreviousIndependentPacket
Added kAudioFileStreamProperty_NextIndependentPacket
Added kAudioFileStreamProperty_PacketToDependencyInfo
AudioFormat.h
Removed AudioFormatListItem
Added kAudioFormatProperty_FormatEmploysDependentPackets
AudioQueue.h
Modified kAudioQueueTimePitchAlgorithm_LowQualityZeroLatency
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedLow Quality Zero Latency algorithm is now Deprecated. Please choose from other available options

AudioUnitParameters.h
Added k3DMixerParam_BusEnable
Added k3DMixerParam_MinGainInDecibels
Added k3DMixerParam_MaxGainInDecibels
Added k3DMixerParam_DryWetReverbBlend
Added k3DMixerParam_GlobalReverbGainInDecibels
Added k3DMixerParam_OcclusionAttenuationInDecibels
Added k3DMixerParam_ObstructionAttenuationInDecibels
Added k3DMixerParam_PreAveragePower
Added k3DMixerParam_PrePeakHoldLevel
Added k3DMixerParam_PostAveragePower
Added k3DMixerParam_PostPeakHoldLevel
Modified k3DMixerParam_Enable
AvailabilityReplacement
FromAvailablenone
ToDeprecatedk3DMixerParam_BusEnable

Modified k3DMixerParam_MinGain
AvailabilityReplacement
FromAvailablenone
ToDeprecatedk3DMixerParam_MinGainInDecibels

Modified k3DMixerParam_MaxGain
AvailabilityReplacement
FromAvailablenone
ToDeprecatedk3DMixerParam_MaxGainInDecibels

Modified k3DMixerParam_ReverbBlend
AvailabilityReplacement
FromAvailablenone
ToDeprecatedk3DMixerParam_DryWetReverbBlend

Modified k3DMixerParam_GlobalReverbGain
AvailabilityReplacement
FromAvailablenone
ToDeprecatedk3DMixerParam_GlobalReverbGainInDecibels

Modified k3DMixerParam_OcclusionAttenuation
AvailabilityReplacement
FromAvailablenone
ToDeprecatedk3DMixerParam_OcclusionAttenuationInDecibels

Modified k3DMixerParam_ObstructionAttenuation
AvailabilityReplacement
FromAvailablenone
ToDeprecatedk3DMixerParam_ObstructionAttenuationInDecibels

AudioUnitProperties.h
Added #def kAUPresetNumberKey