While I applaud the solution (I love USB Audio Player), I'm not sure it's the Samsung solution to the basic problem.
As I understand it, when Samsung designed its latest line of phones, it knew it had to address the fundamental problem of analog output via the USB C connection as well as digital output via the same connection. (On the old phone models, analog output was handled by the 3.5 mm jack and digital output was handled by the USB, right?) Fortunately, the solution was out there - the USB OTG standard and it's a no brainer for a hardware architect.
USB OTG has been around since the early 2000s. It allows phones and tablets to connect to things like digital camaras, external hard drives, even thumb drives. In short, the standard allows the phone to act like a mini computer when managing these types of devices, ie push data and accept data very dynamically.
On the Samsung S20s, an analog stream is passed through USB C by default. To trigger the phone to pass digital data via the USB C connection, you have to use a USB OTG cable! Amazingly, one probably came with the phone and, like me, you tossed into a drawer having no idea why you wanted it. But now that you want to pass digital data to your out board DAC, you need a USB OTG cable. After all, DACs don't like analog data.
Good news - you can buy a USB C OTG cable on Amazon for less than $10. The OTG cable will have a female end on it, so you'll need another regular USB cable to go to the DAC.
https://www.samsung.com/nz/support/mobile-devices/what-is-an-otg-cable-and-what-is-it-used-for/
Yes. If you had been reading the Samsung pages in New Zealand, you'd have seen this. No. I don't live in New Zealand. No. The above page does not mention a DAC. Yes. It's taken me hours to figure all this out, and then I found the above page.
