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Play multiple Audio in one time [STM32f407xx]

Question asked by hiskia.edward on Sep 9, 2015
Latest reply on Sep 9, 2015 by hiskia.edward
Hi guys,

I am intend to using STM32f4 Discovery as sound board, the problem I am only able to play one audio in one time, I need 3 or 4 audio overlapping.

is it possible to mix the audio buffer in firmware ? so I mix it before sending to Audio Processor IC.

I am search on net , and I found the algorithm just simple like Y = A + B.
and for cut clipping the formula become Y = (A + B) - AB.