Hi, I'm prototyping something that processes digital mono audio from a mems mic, transferring the data over i2s into an stm32f373. The only issue I have is that the DMA transfer is designed for stereo so twice as much data is transferred than necessary, with the second channel being zeros.
I'm wondering if there is a more efficient design, perhaps with a different mcu, communication type, etc.., so that only the single audio channel is transferred. As far as I can tell i2s will always give a stereo feed to the DMA.
Can anyone think of a mono optimised design?