Rich,

Good question, thanks for asking it. Currently, the audio driver converts everything to stereo. This was done for various reasons, the most important of which is maintaining a consistent interface between the DMA controller (DMAC) and the audio codec.

You are free to play mono-formatted wave files however, be advised that they will be converted to stereo and will be played as such.

If you _really_ need mono output for some reason, you should contact our sales and support team and they can build you a version of the driver that does that. Depending on what you want to do, they can probably do some optimizations in it as well.

Best regards,
--mikee