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Which is the best Stereo Audio SAI or I2S solution ?

Question asked by T J on Feb 15, 2017

I can use one SAI RxTx channel  or Two separate SAI ports,  providing independent Rx and Tx channels.


Which solution supplies the best HD stereo audio quality ? (stereo and bass channel would be great)


The Speaker drive can be separated from the Audio codec but I am all ears on any suggestions.


My processor board is based on the STM32F7 series processors I am developing my own low level drive software, to facilitate a smaller code footprint and the highest quality seamless Stereo Audio I/O.


The design is working toward a Skype/Gypsy Audio interface, and to reproduce reasonable quality music.


Which software protocol is better ?  SAI,  I2S, PCM , SPDIF ?

I see the SAI port has an 8 byte fifo shared between Rx and TX channels. how can that be full duplex ?


which Codec can someone suggest ?  for High quality Stereo..

do we need a separate drive ? 10W is huge for this...