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是否可以在運行的AudioSession/AudioUnit中間更改/設置採樣率,而無需停止/重新啓動當前AudioSession/AudioUnit(就像音頻路由一樣)?iOS:在音頻單元中動態更改採樣率
我有一個激活的音頻會話,其採樣速率爲44.1千赫
AudioStreamBasicDescription.mSampleRate = 44100
我想改變採樣率到8KHz的無uninitializing [AudioUnitUninitialize(audioUnit)]或停止[AudioOutputUnitStop(audioUnit)]或停用音頻單元/會話。
這是我的音頻單元設置。
audioComponentDescription.componentType = kAudioUnitType_Output;
audioComponentDescription.componentSubType = kAudioUnitSubType_VoiceProcessingIO;
audioComponentDescription.componentFlags = 0;
audioComponentDescription.componentFlagsMask = 0;
audioComponentDescription.componentManufacturer = kAudioUnitManufacturer_Apple;
audioStreamBasicDescription.mSampleRate = 44100;
audioStreamBasicDescription.mFormatID = kAudioFormatLinearPCM;
audioStreamBasicDescription.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
audioStreamBasicDescription.mFramesPerPacket = 1;
audioStreamBasicDescription.mChannelsPerFrame = 1;
audioStreamBasicDescription.mBitsPerChannel = 16;
audioStreamBasicDescription.mBytesPerPacket = 2;
audioStreamBasicDescription.mBytesPerFrame = 2;
任何幫助,高度讚賞。
你嘗試了什麼? –