choose first pulseaudio monitor listed by pacmd list instead of hardcoded string
switch from mp3 to vorbis audio. Better quality/bitrate, better licensing
something like "alsa_output.pci-0000_00_1b.0.analog-stereo.monitor" for pulsesrc is not a pulseaudio "device", it's actually a "device-name". (Human-readable name of the sound device.)