21-vban-rnnoise-filter.conf

#create as ~/.config/pipewire/pipewire.conf.d/21-vban-rnnoise-filter.conf
context.modules = [
  { name = libpipewire-module-filter-chain
    flags = [ ifexists, nofail ]
    args = {
      node.name        = "RNNOISEMONO"
      node.description = "RNNOISEMONO"
      media.class      = "Audio/Filter"

      audio.rate       = 48000
      audio.channels   = 1
      audio.position   = [ MONO ]

      filter.graph = {
        nodes = [
          { type   = ladspa
            name   = rnnoise
            plugin = "/usr/lib/ladspa/librnnoise_ladspa.so"
            label  = "noise_suppressor_mono"
          }
        ]
        inputs  = [ "rnnoise:Input" ]
        outputs = [ "rnnoise:Output" ]
      }
    }
  }
]

README.md

What is this? A vban reciever daemon for your microphone audio from voicemeeter in windows, to your linux box, this inserts a "rnnoise" filter in the audio chain

You end up with a Microphone device that can work in OBS studio, Veadotube mini, prefiltered, no nvidia AI garbage required, no developer SDKs.

you will need the prerequisite pipewire, pipewire-jack, rnnoise filters, etc... consult with google or chatgpt for instructions on obtaining pre-requisites for this script.

I have run this on Devuan Daedalus which is equivalent to Debian 12, under a minimal XFCE env with flatpab OBS, works great.

My linux powerlevel is rising.

vban_filter_daemon.sh

#!/bin/sh
# Minimal VBAN → CleanBus → RNNoise → MicBus → VBAN_Mic setup
# PipeWire (Pulse-based) audio flow with JACK filter-chain for RNNoise

VBAN_HOST=10.0.42.249
VBAN_PORT=6980
SCREEN_NAME=vban_mic
VBAN_SOURCE_NAME=rawmic

INGEST_SINK=CleanBus
MIC_SINK=MicBus
VIRTUAL_MIC=VBAN_Mic

start() {
  echo "Starting VBAN service…"
  screen -S "$SCREEN_NAME" -X quit 2>/dev/null || true

  ensure_pipewire_ready
  ensure_virtual_devices

  echo "Launching vban_receptor…"
  screen -dmS "$SCREEN_NAME" \
    env PULSE_SINK="$INGEST_SINK" \
    vban_receptor -i "$VBAN_HOST" -p "$VBAN_PORT" -s "$VBAN_SOURCE_NAME" -b pulseaudio -d "VBAN RX" --channels=1

  # Wait and forcibly seat VBAN on CleanBus
  for _ in $(seq 1 80); do
    ID="$(pactl list sink-inputs | awk '
      /^[[:space:]]*Sink Input #/ { cur=$0; sub(/^.*#/, "", cur); sub(/[^0-9].*$/, "", cur) }
      /application.process.binary = "vban_receptor"/ { print cur; exit }
      /application.name = "VBAN RX"/                 { print cur; exit }
    ')"
    [ -n "$ID" ] && { pactl move-sink-input "$ID" "$INGEST_SINK" >/dev/null 2>&1 || true; break; }
    sleep 0.25
  done

  # Link CleanBus → RNNoise → MicBus
  pw-link "${INGEST_SINK}:monitor_MONO" "input.RNNOISEMONO:input_FL" 2>/dev/null || true
  pw-link "output.RNNOISEMONO:output_FL" "${MIC_SINK}:playback_MONO" 2>/dev/null || true

  echo "VBAN mic active: $SOURCE_NAME"
}


stop() {
  echo "Stopping VBAN service…"
  screen -S "$SCREEN_NAME" -X quit 2>/dev/null || true
}

purge() {
  stop
  for name in "$INGEST_SINK" "$MIC_SINK"; do
    pactl unload-module "$(pactl list short modules | awk "/module-null-sink/ && /$name/ {print \$1}")" 2>/dev/null || true
  done
  pactl unload-module "$(pactl list short modules | awk "/module-remap-source/ && /$VIRTUAL_MIC/ {print \$1}")" 2>/dev/null || true
}

status() {
  echo "VBAN status:"
  screen -list | grep -q "$SCREEN_NAME" && echo "  → Running" || echo "  → Not running"
  pw-link -l | awk '
    /^CleanBus:monitor_MONO$/ { print; getline; print }
    /^MicBus:playback_MONO$/  { print; getline; print }
    /^input.RNNOISEMONO:input_FL$/ { print; getline; print }
    /^output.RNNOISEMONO:output_FL$/ { print; getline; print }
    /^input.VBAN_Mic:input_MONO$/ { print; getline; print }
  '
}

case "$1" in
  start) start ;;
  stop) stop ;;
  restart) stop; sleep 1; start ;;
  purge) purge ;;
  status) status ;;
  *) echo "Usage: $0 {start|stop|restart|purge|status}" ;;
esac