How do I split stereo I2S data coming into an ADAU1401 serial data input into two separate signals (L&R) that can be processed independently? Do I use a single/multiple-control splitter block to do that? I can't find much in the Sigma DSP help files in terms of documentation on how to process I2S data. I also have the same question with regard to the opposite; how do I combine two independent signals (L&R) into one stereo I2S digital output? Do I use a mixer block?