One popular approach taken to ensure high-quality audio streaming to external accessories is to use USB as an interface. The ability to plug your device into a universally available interface combined with pre-installed drivers makes using USB for audio applications very attractive. Despite these advantages, using the USB Audio class requires some clever system engineering to ensure there are no glitches, or worse, frequency mismatches when streaming. The article “Select your USB audio MCU with care: Scary stories from the test bench” offers an interesting look at failure cases...
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