Routing Audio from a USB Turntable to HDMI using a Raspberry Pi

Audio-Technica AT-LP120-USB: https://amzlink.to/az0yhqHA2zMwV (Amazon Affiliate)

Raspberry Pi Raspbian Buster Desktop Initial Setup: https://youtu.be/iWDDXIHyMhg

Raspberry Pi (Amazon Affiliate)
➡️ Purchase here: https://amzlink.to/az0g1mNVmPoHn
UK: https://amzlink.to/az0PomlnEt5SC
CA: https://amzlink.to/az0DiN8Nn3a0q
ES: https://amzlink.to/az0EJBn77Kx6U
FR: https://amzlink.to/az0D9vAO9c6oj
IT: https://amzlink.to/az0IacDlkzUlJ
DE: https://amzlink.to/az0gJZ0joeiV5
IN: https://amzlink.to/az0EvJYL9uC71

List Audio Devices
 aplay -L
Send input to output
 alsaloop -t 500000 -C hw:CARD=CODEC,DEV=0 -P hw:CARD=ALSA,DEV=1

On October 8th 2020, I tested the above line and it didn’t work with the current version of Raspberry Pi OS on a Raspberry Pi 4. You can try the following:

 alsaloop -t 500000 -C hw:CARD=CODEC,DEV=0 -P default:CARD=b1