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0 pointsWeebLabs12d ago0 comments

For USB input and SPDIF output, all that you need is a TOSLINK TX module(s) or a couple of capacitors and a resistor if you want coaxial SPDIF. For I2S output, the PCM5102A modules that you find on Amazon work very well, with very reasonable performance (SNR >100dB, THD+N ~95dB).

For 2.1 configurations in a pinch, the firmware includes a software DAC that's more than adequate to drive a subwoofer, so only one external DAC is needed.

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ssl-312d ago

Maybe start by omitting the part in the first paragraph about how it acts as a USB sound card. :)

I mean, I know what you meant, but that's pretty misleading phrasing for many people.

It's not much of a stretch to think that most people interpret a "USB sound card" as a thing with analog audio on one side and USB on the other side. But other than the subwoofer output, we don't have any analog IO on a Pico running this firmware.

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ssl-312d ago

Maybe start by omitting the part in the first paragraph about how it acts as a USB sound card. :)

I mean, I know what you meant, but that's pretty misleading phrasing for many people.

j / k navigate · click thread line to collapse