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zoey 2026-01-13 15:39:16 -05:00
parent 6198cf14d4
commit 1506941c66
Signed by: zoey
GPG key ID: 81FB9FECDD6A33E2
49 changed files with 1963 additions and 1822 deletions
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36
modules/nixos/hardware/audio/default.nix
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@ -24,39 +24,9 @@ in {
jack.enable = true;
};
systemd.user.services.cava-combine-inputs = {
description = "Combine MOTU M4 Line Inputs L/R for Cava";
# Ensure this runs after pipewire-pulse is started
after = ["pipewire-pulse.service"];
wants = ["pipewire-pulse.service"]; # Start pipewire-pulse if not already running
# Make it part of the default user session target
wantedBy = ["default.target"];
# Service configuration details
serviceConfig = {
Type = "oneshot"; # Run the command once and exit
# Use RemainAfterExit if you want the service to show as 'active' after running
# RemainAfterExit = true;
# Command to execute. Use full paths for robustness.
# We use sh -c to run multiple commands sequentially.
# pactl is provided by the pulseaudio package.
ExecStart = "${pkgs.writeShellScriptBin "cava-start" ''
echo "Attempting to load Cava combine modules..."
# Load null sink (returns non-zero if it fails AND module doesn't exist)
${pkgs.pulseaudio}/bin/pactl load-module module-null-sink sink_name=cava-line-in sink_properties=device.description="Cava_Combined_LineIn"
# Load loopbacks (returns non-zero on failure)
${pkgs.pulseaudio}/bin/pactl load-module module-loopback source="alsa_input.usb-MOTU_M4_M4MA03F7DV-00.HiFi__Line3__source" sink=cava-line-in latency_msec=10
${pkgs.pulseaudio}/bin/pactl load-module module-loopback source="alsa_input.usb-MOTU_M4_M4MA03F7DV-00.HiFi__Line4__source" sink=cava-line-in latency_msec=10
echo "Finished loading Cava combine modules (ignore errors if already loaded)."
# Exit successfully even if modules were already loaded (pactl might return 0)
exit 0
''}/bin/cava-start";
# Prevent service from restarting automatically
Restart = "no";
services.pipewire.extraConfig.pipewire."92-low-latency" = {
"context.properties" = {
"default.clock.rate" = 192000;
};
};
};