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2014/10/15 ¤U¤È 10:08:41

iphone Programming Glossary: extaudiofilecreatewithurl

Audio Processing: Playing with volume level

http://stackoverflow.com/questions/3982723/audio-processing-playing-with-volume-level

float bufferList mBuffers ii .mData for int jj 0 jj rFrames jj fBuf fBuf ampScale fBuf open the file for writing err ExtAudioFileCreateWithURL CFURLRef theURL fileType fileFormat NULL kAudioFileFlags_EraseFile audiofile tell the ExtAudioFile API what format we'll..

Write Audio To Disk From IO Unit

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

1 dstFormat.mChannelsPerFrame 2 dstFormat.mBitsPerChannel 16 dstFormat.mReserved 0 create the capture file status ExtAudioFileCreateWithURL destinationURL kAudioFileWAVEType dstFormat NULL kAudioFileFlags_EraseFile recordingfileref CheckError status couldnt create..

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

kCFAllocatorDefault CFStringRef destinationFilePath kCFURLPOSIXPathStyle false OSStatus setupErr ExtAudioFileCreateWithURL destinationURL kAudioFileWAVEType dstFormat NULL kAudioFileFlags_EraseFile effectState.audioFileRef CFRelease destinationURL..

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

kCFAllocatorDefault CFStringRef destinationFilePath kCFURLPOSIXPathStyle false OSStatus setupErr ExtAudioFileCreateWithURL destinationURL kAudioFileWAVEType audioFormat NULL kAudioFileFlags_EraseFile effectState.audioFileRef CFRelease destinationURL.. audiounit share improve this question In initializaeOutputUnit you only created your audio file OSStatus setupErr ExtAudioFileCreateWithURL destinationURL kAudioFileWAVEType audioFormat NULL kAudioFileFlags_EraseFile effectState.audioFileRef by passing 0 frames..

ExtAudioFileWrite to m4a/aac failing on dual-core devices (ipad 2, iphone 4s)

http://stackoverflow.com/questions/8719865/extaudiofilewrite-to-m4a-aac-failing-on-dual-core-devices-ipad-2-iphone-4s

localFormat AUCanonicalASBD 44100.0 2 output file format AudioStreamBasicDescription mixdownFormat MixdownAAC err ExtAudioFileCreateWithURL CFURLRef mixdownURL kAudioFileM4AType mixdownFormat NULL kAudioFileFlags_EraseFile outFile err ExtAudioFileSetProperty..