> Sounds like a standard thing. I'm not aware of your restrictions but I would > actually suggest looking into some pre-made Texas Instruments ADC/DAC->USB ICs > which are widely in use in existing products. Well, my MEMS microphones are actually themselves digital (PDM) so I do not need an ADC. I will look into existing USB ICs, but I do not think I will use them as this is a learning exercise (I think I will solve PDM->USB with either a microcontroller or an FPGA). > USB is sufficient, for LPCM (assuming 16bit stereo 48kHz) requires 1.47Mbit/s > whereas USB2.0 is already 480Mbit/s. > HDMI generally only carries audio from a video source (PC) to a monitor, it > can optionally carry audio back through ARC (Audio Return Channel), which is > used by TVs that are connected to a HDMI receiver (those fancy 5.1, 7.1 > amplifiers that switch HDMI), adding the ability to route TV audio back to the > receiver even though the receiver generally only sends video to the TV over > this cable. Thanks a bunch :) . So the conclusion is that HDMI supports this ARC thing, but the graphics cards do not. Well, then I will use USB. Thanks again, Nsajko
