Unless your hardware has to be fed sample-at-a-time, your deadline isn't 700 times worse. A fairer comparison would point out for HD video, you have mere nanose

Unless your hardware has to be fed sample-at-a-time, your deadline isn't 700 times worse. A fairer comparison would point out for HD video, you have mere nanoseconds per pixel, vs. microseconds for audio samples. That is, my laptop has ~43 cycles to get out all channels of each pixel, vs. more than 60,000 cycles to get out all channels of each 44.1kHz audio sample. But the pixels only have to be delivered by screen refresh, and the samples only have to be delivered before the sound card tries to play them--probably 64-1024 samples (or further) in the future.