Problems with audio output

Tuesday, 18 January 2022

Apologies for the vague subject line. The situation is as follows:

I have an iRig2HD audio converter plugged into a USB socket, and am
attempting to set up Guitarix (from the Fedora repo) as an effects tool
for an electric guitar. Guitarix is designed to be used with the Jack
audio platform, and F35 supplies a Pipewire alternative which seems to
work correctly for input, i.e. I can see the input signal in the
Guitarix monitor. I can also output to the PCs sound card, generate
effects etc. However I can't produce output to the USB port, though the
connected hardware is enabled and recognised. I get these errors in the
journal:

Jan 18 13:30:29 Bree pipewire[2535]: pw.node:
(alsa_output.usb-IK_Multimedia_iRig_HD_2-00.analog-stereo-49) start node error -32: Broken
pipe
Jan 18 13:30:30 Bree pipewire[2535]: spa.alsa: front:3: snd_pcm_start: Broken pipe
Jan 18 13:30:30 Bree pipewire[2535]: spa.audioadapter: 0x55f6abcba528: can't send
command 2: Broken pipe

This may be a permissions problem or something else.

Any ideas?

poc