Audio Parameters

Filters, adding delay, bitrate, channels, mono/stereo, muting guests etc.

They are separated in three groups: general options (push and view), source side (push) options and viewer side (view) options.

General options

You can add them to both, source (&push) and viewer (&view, &scene or &solo) sides.


Improves the audio quality, changes default audio settings and sets the audio mode to stereo

Sets the audio mode to stereo and changes default audio settings to improve audio quality

Auto mutes the speaker

Audio playback is muted

Disables all webaudio audio-processing pipelines

Source side options

You have to add them to the source side (&push).


Pre-configures the selected audio device

Automatic echo-cancellation is ON or OFF

Applies a gain multiplier (as a percentage) to the local microphone

Sets whether audio auto-normalization is ON or OFF

Applies a generic audio compressor to the local microphone

Turn audio noise reduction filter ON or OFF

Will try to "distort" your microphone's output audio, making your voice a bit anonymous

Provides access to a generic audio equalizer that can be applied to the local microphone

Applies a generic audio limiter to the local microphone

Adds a low-cut filter

Lowers your mic volume to 10% of its current value based on volume-level activity

Lets you tweak the &noisegate variables, making it more or less aggressive as needed

=music fixed bitrate; =speech bitrate is variable

Adds an audio-latency to the published audio stream

Delays the microphone by specified time in ms

Starts with the microphone muted by default

Will mute the microphone of a guest when not loaded in an active OBS scene

Target audio bitrate and max bitrate for outgoing audio streams

Audio capture device to select N-number of audio channels

Sets a guest's audio input to mono (1-channel)

Viewer side options

You have to add them to the viewer side (&view, &scene or &solo).


Like &sink, but selects the audio output device

Outputs the audio to the specified audio output device, rather than the default

Sets the 'default' playback volume for all video elements

Shows a dedicated local audio-volume control bar for canvas or image elements

Manually sets the audio bitrate in kbps

Sets the audio bitrate to be variable, instead of constant

Has the inbound audio playback as mono audio

Delivers video only streams; audio playback is disabled

Disables all audio playback from room directors

Pans the outgoing audio left or right, allowing for spatial audio group chats

Sets an offset (in ms) for the automatic audio sync fix node

Audio playback sample-rate, in hz

Specifies the number of output audio channels you wish to mix up or down to

Shifts audio channels 0 and 1 up channels, based on the offset value

Will play either the left or right audio stream-only for an incoming stereo stream

Audio packet size

Maximum packet size of audio

Minimum packet size of audio

Lets you specify the audio codec

Turns off the audio encoder automatically when no little to no sound is detected

Disables FEC (audio forward error correction)


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