Sorry I accidentally sent the last email while I didn't finish yet.
so, the recording part of the code is like:
audioFormat.mSampleRate = 44100.0;
audioFormat.mFormatID = kAudioFormatLinearPCM;
audioFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
audioFormat.mBytesPerPacket = 2;
audioFormat.mFramesPerPacket = 1;
audioFormat.mBytesPerFrame = 2;
audioFormat.mChannelsPerFrame = 1;
audioFormat.mBitsPerChannel = 16;
status = AudioFileCreateWithURL(fileURL, kAudioFileWAVEType, &audioFormat, kAudioFileFlags_EraseFile, &audioFileID);
status = ExtAudioFileWrapAudioFileID(audioFileID, YES, &audiofile);
ExtAudioFileSetProperty(audiofile,kExtAudioFileProperty_ClientDataFormat,sizeof(audioFormat),&audioFormat);
status = ExtAudioFileWriteAsync(audiofile, 0,NULL);
And in the recording callback:
status = ExtAudioFileWriteAsync(THIS.audiofile,inNumberFrames,THIS.bufferList);
Since "status" doesn't return error anywhere, I cannot find where is wrong, but the recorded .wav file cannot even be opened by iTunes...
Zhiye
On Thu, Oct 29, 2009 at 2:32 AM, Seth Delackner
<email@hidden> wrote:
How are you writing your data to the file? AudioFileWritePackets
works fine for me. Not sure about the data format flags you are
using. You are trying to write mono it seems, but I've only tried
writing stereo output. Shouldn't be an issue I would think...