Multichannel inputs

Question

I'm hoping to use the SHARC Audio Module to perform real time processing on data from an array of 12-16 microphones. Based on the spec sheet, this module should be capable of carrying out the processing, but I can't find a way to read in more than a handful of analog channels. Is the module able to read in an array of analog signals, or is there additional hardware that would make this possible?

lliu · Accepted Answer

ADI has MEMS-mic eval boards https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD2428WC1BZ.html#eb-overview But you can not individually position/orientate those mics. 
 A possible option is adau1979/1977. Both support up to 4 channels. In addition, 1977 provides up to 5v mic bias. Unfortunately, I could not find an eval board that has both 1977/1979 and A2B populated. 
 Another possible option is https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD2428WB1BZ.html . you can feed two analog mic channel in and may use on-board MEMs mic at the same time. Then, you need to daisy-chain a few WBZ boards to get 12-16 channels in total.)

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Multichannel inputs