Sure, grab the underlying AudioConverter (kExtAudioFileProperty_AudioConverter) and set its channel map (kAudioConverterChannelMap) appropriately -- [0, 0] for mono to stereo.
On Aug 7, 2010, at 22:04 , Guy Shaviv wrote:
> If I read a mono audio file using the ExtAudio API, and give it a stereo client data buffer, it will place all the audio in one channel (don't recall if it picks the L or R) and place zeros in the other channel. Is it possible to ask ExtAudio to duplicate the data of a mono file so that it is placed in both channels?
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