2014/10/15 下午 10:08:00

iphone Programming Glossary: effectstate

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

withStatus result return Then i try to set the render callback. Solution 1 my recording callback is never called effectState.rioUnit iOUnit AURenderCallbackStruct renderCallbackStruct renderCallbackStruct.inputProc recordingCallback renderCallbackStruct.inputProcRefCon.. renderCallbackStruct renderCallbackStruct.inputProc recordingCallback renderCallbackStruct.inputProcRefCon effectState result AudioUnitSetProperty iOUnit kAudioUnitProperty_SetRenderCallback kAudioUnitScope_Input 0 Output bus renderCallbackStruct.. renderCallbackStruct renderCallbackStruct.inputProc recordingCallback renderCallbackStruct.inputProcRefCon effectState result AUGraphSetNodeInputCallback processingGraph iONode 0 Output bus renderCallbackStruct if noErr result self printErrorMessage..

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

setupErr ExtAudioFileCreateWithURL destinationURL kAudioFileWAVEType audioFormat NULL kAudioFileFlags_EraseFile effectState.audioFileRef CFRelease destinationURL NSAssert setupErr noErr @ Couldn't create file for writing setupErr ExtAudioFileSetProperty.. CFRelease destinationURL NSAssert setupErr noErr @ Couldn't create file for writing setupErr ExtAudioFileSetProperty effectState.audioFileRef kExtAudioFileProperty_ClientDataFormat sizeof AudioStreamBasicDescription audioFormat NSAssert setupErr noErr.. audioFormat NSAssert setupErr noErr @ Couldn't create file for format setupErr ExtAudioFileWriteAsync effectState.audioFileRef 0 NULL NSAssert setupErr noErr @ Couldn't initialize write buffers for audio file the recording call back static..