2014/10/15 下午 10:11:20

iphone Programming Glossary: mbuffers

Removing and adding persistent stores to a core data application

http://stackoverflow.com/questions/2257557/removing-and-adding-persistent-stores-to-a-core-data-application

Audio Processing: Playing with volume level

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

1 bufferList mNumberBuffers clientFormat.mChannelsPerFrame for int ii 0 ii bufferList mNumberBuffers ii bufferList mBuffers ii .mDataByteSize sizeof float numFrames bufferList mBuffers ii .mNumberChannels 1 bufferList mBuffers ii .mData malloc.. for int ii 0 ii bufferList mNumberBuffers ii bufferList mBuffers ii .mDataByteSize sizeof float numFrames bufferList mBuffers ii .mNumberChannels 1 bufferList mBuffers ii .mData malloc bufferList mBuffers ii .mDataByteSize read in the data UInt32.. ii bufferList mBuffers ii .mDataByteSize sizeof float numFrames bufferList mBuffers ii .mNumberChannels 1 bufferList mBuffers ii .mData malloc bufferList mBuffers ii .mDataByteSize read in the data UInt32 rFrames UInt32 numFrames err ExtAudioFileRead..

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

it's receiving and handle it appropriately. Try adding this to your callback SInt16 dataLeftChannel SInt16 ioData mBuffers 0 .mData for UInt32 frameNumber 0 frameNumber inNumberFrames frameNumber NSLog @ sample lu d frameNumber dataLeftChannel.. looking number and a much smaller number try this code in your callback instead SInt32 dataLeftChannel SInt32 ioData mBuffers 0 .mData for UInt32 frameNumber 0 frameNumber inNumberFrames frameNumber NSLog @ sample lu ld frameNumber dataLeftChannel.. malloc sizeof SInt16 4096 Then add this to your callback before you save your data UInt32 dataSizeCanonical ioData mBuffers 0 .mDataByteSize SInt32 dataCanonical SInt32 ioData mBuffers 0 .mData UInt32 dataSize16 dataSizeCanonical AudioConverterConvertBuffer..

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

allRenderData writeBuffer malloc sizeof AudioBufferList 2 sizeof AudioBuffer writeBuffer mNumberBuffers 2 writeBuffer mBuffers 0 .mNumberChannels 1 writeBuffer mBuffers 0 .mDataByteSize bufferBytes writeBuffer mBuffers 0 .mData malloc bufferBytes.. 2 sizeof AudioBuffer writeBuffer mNumberBuffers 2 writeBuffer mBuffers 0 .mNumberChannels 1 writeBuffer mBuffers 0 .mDataByteSize bufferBytes writeBuffer mBuffers 0 .mData malloc bufferBytes writeBuffer mBuffers 1 .mNumberChannels 1.. 2 writeBuffer mBuffers 0 .mNumberChannels 1 writeBuffer mBuffers 0 .mDataByteSize bufferBytes writeBuffer mBuffers 0 .mData malloc bufferBytes writeBuffer mBuffers 1 .mNumberChannels 1 writeBuffer mBuffers 1 .mDataByteSize bufferBytes..