Yes, I want to stream PCM2901 to my NoMachine clients. Here’s the output from pacts:
pi@raspberrypi:~ $ pactl info | grep Default
Default Sample Specification: s16le 2ch 44100Hz
Default Channel Map: front-left,front-right
Default Sink: alsa_output.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.analog-stereo
Default Source: alsa_input.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.analog-stereo
Those USB devices are the audio in and out of the device I want to listen to remotely. Thanks for the help.