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{pkgs, ...}: {
programs.obs-studio = {
enable = true;
enableVirtualCamera = true;
plugins = with pkgs.obs-studio-plugins; [
obs-pipewire-audio-capture
];
};
# Enable sound with pipewire.
hardware.pulseaudio.enable = false;
security.rtkit.enable = true;
# Latency optimization
boot.kernelParams = ["threadirqs"];
boot.kernel.sysctl."vm.swappiness" = 10;
environment.systemPackages = with pkgs; [
obs-do # cli for controlling obs
pamixer # cli volume control
patchage # another connection manager
pwvucontrol # gui for quick adjustments
qpwgraph # better than helvum
supercollider-with-plugins
];
# Virtual sinks for routing audio
services.pipewire = {
enable = true;
alsa.enable = true;
alsa.support32Bit = true;
pulse.enable = true;
jack.enable = true;
wireplumber.enable = true;
extraConfig.pipewire = {
"10-loopback" = {
# loopback my mic into my headphones so i can hear myself, this creates
# an auditory space that encourages focus and thinking
"context.properties" = {
"default.clock.rate" = 48000;
"default.clock.quantum" = 128; # lower for less latency
"default.clock.min-quantum" = 32;
"default.clock.max-quantum" = 8192;
};
"context.exec" = [
{
"path" = "${pkgs.writeShellScript "setup-mic-monitor" ''
sleep 1
${pkgs.pipewire}/bin/pw-link \
"alsa_input.usb-Antlion_Audio_Antlion_USB_Microphone-00.pro-input-0:capture_AUX0" \
"input.mic-monitor:input_FL"
${pkgs.pipewire}/bin/pw-link \
"alsa_input.usb-Antlion_Audio_Antlion_USB_Microphone-00.pro-input-0:capture_AUX0" \
"input.mic-monitor:input_FR"
''}";
}
];
"context.modules" = [
{
name = "libpipewire-module-loopback";
args = {
"node.name" = "mic-monitor";
"node.description" = "Microphone Monitor";
"capture.props" = {
"target.object" = "alsa_input.usb-Antlion_Audio_Antlion_USB_Microphone-00.pro-input-0";
"channelmix.normalize" = true;
"audio.channels" = 1;
"audio.position" = ["FR" "FL"];
};
"playback.props" = {
"target.object" = "alsa_output.usb-Focusrite_Scarlett_Solo_USB-00.HiFi__Line1__sink";
"node.passive" = true;
"channelmix.normalize" = true;
"audio.channels" = 2;
"audio.position" = ["FR" "FL"];
};
};
}
];
};
"10-combined" = {
"context.modules" = [
{
name = "libpipewire-module-loopback";
args = {
"node.name" = "combined-audio";
"node.description" = "Combined Mic+Desktop Audio";
"capture.props" = {
"media.class" = "Audio/Sink";
"audio.class" = 2;
"audio.position" = ["FL" "FR"];
"channelmix.normalize" = true;
};
"playback.props" = {
"media.class" = "Audio/Source";
"audio.channels" = 2;
"audio.position" = ["FL" "FR"];
"channelmix.normalize" = true;
};
};
}
];
"context.exec" = [
{
"path" = "${pkgs.writeShellScript "setup-audio-routing" ''
sleep 1
${pkgs.pipewire}/bin/pw-link \
"alsa_input.usb-Antlion_Audio_Antlion_USB_Microphone-00.pro-input-0:capture_AUX0" \
"input.combined-audio:playback_FL"
${pkgs.pipewire}/bin/pw-link \
"alsa_input.usb-Antlion_Audio_Antlion_USB_Microphone-00.pro-input-0:capture_AUX0" \
"input.combined-audio:playback_FR"
${pkgs.pipewire}/bin/pw-link \
"input.combined-audio:monitor_FL" \
"alsa_output.usb-Focusrite_Scarlett_Solo_USB-00.HiFi__Line1__sink:playback_FL"
${pkgs.pipewire}/bin/pw-link \
"input.combined-audio:monitor_FR" \
"alsa_output.usb-Focusrite_Scarlett_Solo_USB-00.HiFi__Line1__sink:playback_FR"
''}";
}
];
};
};
};
}
|
