2014/10/15 下午 10:10:34

iphone Programming Glossary: iodata

http://stackoverflow.com/questions/6930609/write-audio-to-disk-from-io-unit

ioActionFlags const AudioTimeStamp inTimeStamp UInt32 inBusNumber UInt32 inNumberFrames AudioBufferList ioData ref.equnit AudioUnitRender engineDescribtion.channelMixers inBusNumber ioActionFlags inTimeStamp 0 inNumberFrames ioData.. ref.equnit AudioUnitRender engineDescribtion.channelMixers inBusNumber ioActionFlags inTimeStamp 0 inNumberFrames ioData Engine engine Engine inRefCon AudioUnitRender engineDescribtion.equnit ioActionFlags inTimeStamp 0 inNumberFrames ioData.. Engine engine Engine inRefCon AudioUnitRender engineDescribtion.equnit ioActionFlags inTimeStamp 0 inNumberFrames ioData if engine isrecording ExtAudioFileWriteAsync engine recordingfileref inNumberFrames ioData return 0 the recording setup..

How to record sound produced by mixer unit output (iOS Core Audio & Audio Graph)

http://stackoverflow.com/questions/7118429/how-to-record-sound-produced-by-mixer-unit-output-ios-core-audio-audio-graph

ioActionFlags const AudioTimeStamp inTimeStamp UInt32 inBusNumber UInt32 inNumberFrames AudioBufferList ioData if ioActionFlags kAudioUnitRenderAction_PostRender inBusNumber 0 EffectState effectState EffectState inRefCon ExtAudioFileWriteAsync.. 0 EffectState effectState EffectState inRefCon ExtAudioFileWriteAsync effectState audioFileRef inNumberFrames ioData return noErr There is something missing in the output file output.caf . I'm totally lost in formats to apply. iphone ios.. even though you've added a callback. Once your callback is running if you find that there's no data in the buffers ioData wrap this code around your callback code if ioActionFlags kAudioUnitRenderAction_PostRender your code This is needed because..

Can anybody help me in recording iPhone output sound through Audio Unit

http://stackoverflow.com/questions/8615358/can-anybody-help-me-in-recording-iphone-output-sound-through-audio-unit

ioActionFlags const AudioTimeStamp inTimeStamp UInt32 inBusNumber UInt32 inNumberFrames AudioBufferList ioData NSLog @ callback if ioActionFlags kAudioUnitRenderAction_PostRender inBusNumber 0 AudioBufferList bufferList Fill this.. ioActionFlags const AudioTimeStamp inTimeStamp UInt32 inBusNumber UInt32 inNumberFrames AudioBufferList ioData double timeInSeconds inTimeStamp mSampleTime kSampleRate printf n fs inBusNumber lu inNumberFrames lu timeInSeconds inBusNumber..