# Audio Parameters

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

## General options

You can add them to both, source ([`&push`](https://docs.vdo.ninja/advanced-settings/setup-parameters/push)) and viewer ([`&view`](https://docs.vdo.ninja/advanced-settings/mixer-scene-parameters/view), [`&scene`](https://docs.vdo.ninja/advanced-settings/mixer-scene-parameters/scene) or [`&solo`](https://docs.vdo.ninja/advanced-settings/mixer-scene-parameters/and-solo)) sides.

<table><thead><tr><th width="266.57142857142856">Parameter</th><th>Explanation</th></tr></thead><tbody><tr><td><a href="audio-parameters/and-proaudio"><code>&#x26;proaudio</code></a></td><td>Improves the audio quality, changes default audio settings and sets the audio mode to stereo</td></tr><tr><td><a href="audio-parameters/stereo"><code>&#x26;stereo</code></a></td><td>Sets the audio mode to stereo and changes default audio settings to improve audio quality</td></tr><tr><td><a href="audio-parameters/and-mutespeaker"><code>&#x26;mutespeaker</code></a></td><td>Auto mutes the speaker</td></tr><tr><td><a href="audio-parameters/deafen"><code>&#x26;deafen</code></a></td><td>Audio playback is muted</td></tr><tr><td><a href="audio-parameters/noaudioprocessing"><code>&#x26;noaudioprocessing</code></a></td><td>Disables all webaudio audio-processing pipelines</td></tr></tbody></table>

## Source side options

You have to add them to the source side ([`&push`](https://docs.vdo.ninja/advanced-settings/setup-parameters/push)).

<table><thead><tr><th width="286.57142857142856">Parameter</th><th>Explanation</th></tr></thead><tbody><tr><td><a href="setup-parameters/audiodevice"><code>&#x26;audiodevice</code></a></td><td>Pre-configures the selected audio device</td></tr><tr><td><a href="audio-parameters/aec"><code>&#x26;echocancellation</code></a></td><td>Automatic echo-cancellation is ON or OFF</td></tr><tr><td><a href="audio-parameters/and-audiogain"><code>&#x26;audiogain</code></a></td><td>Applies a gain multiplier (as a percentage) to the local microphone</td></tr><tr><td><a href="audio-parameters/autogain"><code>&#x26;autogain</code></a></td><td>Sets whether audio auto-normalization is ON or OFF</td></tr><tr><td><a href="audio-parameters/and-compressor"><code>&#x26;compressor</code></a></td><td>Applies a generic audio compressor to the local microphone</td></tr><tr><td><a href="audio-parameters/and-denoise"><code>&#x26;denoise</code></a></td><td>Turn audio noise reduction filter ON or OFF</td></tr><tr><td><a href="audio-parameters/and-distort"><code>&#x26;distort</code></a></td><td>Will try to "distort" your microphone's output audio, making your voice a bit anonymous</td></tr><tr><td><a href="audio-parameters/and-equalizer"><code>&#x26;equalizer</code></a></td><td>Provides access to a generic audio equalizer that can be applied to the local microphone</td></tr><tr><td><a href="audio-parameters/and-limiter"><code>&#x26;limiter</code></a></td><td>Applies a generic audio limiter to the local microphone</td></tr><tr><td><a href="audio-parameters/lowcut"><code>&#x26;lowcut</code></a></td><td>Adds a low-cut filter</td></tr><tr><td><a href="audio-parameters/noisegate"><code>&#x26;noisegate</code></a></td><td>Lowers your mic volume to 10% of its current value based on volume-level activity</td></tr><tr><td><a href="audio-parameters/and-noisegatesettings"><code>&#x26;noisegatesettings</code></a></td><td>Lets you tweak the &#x26;noisegate variables, making it more or less aggressive as needed</td></tr><tr><td><a href="audio-parameters/and-audiocontenthint"><code>&#x26;audiocontenthint</code></a></td><td><code>=music</code> fixed bitrate; <code>=speech</code> bitrate is variable</td></tr><tr><td><a href="audio-parameters/and-audiolatency"><code>&#x26;audiolatency</code></a></td><td>Adds an audio-latency to the published audio stream</td></tr><tr><td><a href="audio-parameters/and-micdelay"><code>&#x26;micdelay</code></a></td><td>Delays the microphone by specified time in ms</td></tr><tr><td><a href="audio-parameters/and-mute"><code>&#x26;mute</code></a></td><td>Starts with the microphone muted by default</td></tr><tr><td><a href="audio-parameters/and-automute"><code>&#x26;automute</code></a></td><td>Will mute the microphone of a guest when not loaded in an active OBS scene</td></tr><tr><td><a href="audio-parameters/and-outboundaudiobitrate"><code>&#x26;outboundaudiobitrate</code></a></td><td>Target audio bitrate and max bitrate for outgoing audio streams</td></tr><tr><td><a href="audio-parameters/and-inputchannels"><code>&#x26;inputchannels</code></a></td><td>Audio capture device to select N-number of audio channels</td></tr><tr><td><a href="audio-parameters/and-monomic"><code>&#x26;monomic</code></a></td><td>Sets a guest's audio input to mono (1-channel)</td></tr></tbody></table>

## **Viewer side options**

You have to add them to the viewer side ([`&view`](https://docs.vdo.ninja/advanced-settings/mixer-scene-parameters/view), [`&scene`](https://docs.vdo.ninja/advanced-settings/mixer-scene-parameters/scene) or [`&solo`](https://docs.vdo.ninja/advanced-settings/mixer-scene-parameters/and-solo)).

<table><thead><tr><th width="245.57142857142856">Parameter</th><th>Explanation</th></tr></thead><tbody><tr><td><a href="setup-parameters/and-audiooutput"><code>&#x26;audiooutput</code></a></td><td>Like <a href="setup-parameters/and-sink"><code>&#x26;sink</code></a>, but selects the audio output device</td></tr><tr><td><a href="setup-parameters/and-sink"><code>&#x26;sink</code></a></td><td>Outputs the audio to the specified audio output device, rather than the default</td></tr><tr><td><a href="audio-parameters/and-volume"><code>&#x26;volume</code></a></td><td>Sets the 'default' playback volume for all video elements</td></tr><tr><td><a href="audio-parameters/and-volumecontrol"><code>&#x26;volumecontrol</code></a></td><td>Shows a dedicated local audio-volume control bar for canvas or image elements</td></tr><tr><td><a href="audio-parameters/audiobitrate"><code>&#x26;audiobitrate</code></a></td><td>Manually sets the audio bitrate in kbps</td></tr><tr><td><a href="audio-parameters/vbr"><code>&#x26;vbr</code></a></td><td>Sets the audio bitrate to be variable, instead of constant</td></tr><tr><td><a href="audio-parameters/mono"><code>&#x26;mono</code></a></td><td>Has the inbound audio playback as mono audio</td></tr><tr><td><a href="audio-parameters/noaudio"><code>&#x26;noaudio</code></a></td><td>Delivers video only streams; audio playback is disabled</td></tr><tr><td><a href="audio-parameters/and-nodirectoraudio"><code>&#x26;nodirectoraudio</code></a>*</td><td>Disables all audio playback from room directors</td></tr><tr><td><a href="audio-parameters/and-panning"><code>&#x26;panning</code></a></td><td>Pans the outgoing audio left or right, allowing for spatial audio group chats</td></tr><tr><td><a href="audio-parameters/sync"><code>&#x26;sync</code></a></td><td>Sets an offset (in ms) for the automatic audio sync fix node</td></tr><tr><td><a href="audio-parameters/and-samplerate"><code>&#x26;samplerate</code></a></td><td>Audio playback sample-rate, in hz</td></tr><tr><td><a href="audio-parameters/and-channels"><code>&#x26;channels</code></a></td><td>Specifies the number of output audio channels you wish to mix up or down to</td></tr><tr><td><a href="audio-parameters/and-channeloffset"><code>&#x26;channeloffset</code></a></td><td>Shifts audio channels 0 and 1 up channels, based on the offset value</td></tr><tr><td><a href="audio-parameters/and-channeloffset-1"><code>&#x26;playchannel</code></a></td><td>Will play either the left or right audio stream-only for an incoming stereo stream</td></tr><tr><td><a href="audio-parameters/and-ptime"><code>&#x26;ptime</code></a></td><td>Audio packet size</td></tr><tr><td><a href="audio-parameters/and-maxptime"><code>&#x26;maxptime</code></a></td><td>Maximum packet size of audio</td></tr><tr><td><a href="audio-parameters/minptime"><code>&#x26;minptime</code></a></td><td>Minimum packet size of audio</td></tr><tr><td><a href="audio-parameters/minptime-1"><code>&#x26;audiocodec</code></a></td><td>Lets you specify the audio codec</td></tr><tr><td><a href="audio-parameters/minptime-2"><code>&#x26;dtx</code></a></td><td>Turns off the audio encoder automatically when no little to no sound is detected</td></tr><tr><td><a href="audio-parameters/minptime-3"><code>&#x26;nofec</code></a></td><td>Disables FEC (audio forward error correction)</td></tr></tbody></table>

\*NEW IN [VERSION 24](https://docs.vdo.ninja/releases/v24)