These are the attributes used by the Get audio settings endpoint and the Set audio settings endpoint.

*HDX audio settings coming soon.

Audio settings attribute name	Type	Supported by	Description
microphoneMute	boolean	*HDX, HDL410, HDL310, Dual HDL300, HDL300, HDL200	True to mute; false to unmute the device microphone.
microphonePickupState	string	Dual HDL300, HDL300, HDL200	Configure the microphone system to be Mono input or Stereo input.
microphoneGain	integer	*HDX, HDL410, HDL310, Dual HDL300, HDL300	The microphone volume gain setting adjusts the volume of the processed microphone signal that is sent from the Nureva system to the connected meeting room computer. -6 to +12
speakerBassLevel	integer	HDL410, HDL310, Dual HDL300, HDL300, HDL200	Sets the speakerBassLevel for the device. 0 to 100
speakerTrebleLevel	integer	HDL410, HDL310, Dual HDL300, HDL300, HDL200	Sets the speakerTrebleLevel for the device. 0 to 100
speakerVolume	integer	*HDX, HDL410, HDL310, Dual HDL300, HDL300, HDL200	Gets the speakerVolume for the device. 0 to 20
echoReductionLevel	string	HDL410, HDL310, Dual HDL300, HDL300, HDL200	Select a lower setting if remote users notice that voices in the room are cutting out. If remote users can hear their own voices echoing, select a higher setting. Low, Medium, or High
noiseReductionLevel	string	HDL410, HDL310, Dual HDL300, HDL300, HDL200	Select a lower setting if remote users notice that voices in the room are cutting out. If remote users hear background noises such as HVAC systems or fans, select a higher setting. Low, Medium, or High
auxiliaryOutputState	string	*HDX, HDL410, HDL310, Dual HDL300, HDL300	Select an auxiliary output mode for interoperability with other audio systems. MicLevel, LineLevel, SpeakerOut, MixedSignal, or SpeakerRef
voiceAmplificationEnabled	boolean	HDL410, HDL310, Dual HDL300, HDL300	Enable (true) or disable (false) Adaptive Voice Amplification.
voiceAmplificationLevel	integer	HDL410, HDL310, Dual HDL300, HDL300	Adjust the Adaptive Voice Amplification Level. Supports values from 0 to 40. The recommended operating range is 0 dB to 20 dB, which corresponds to endpoint values between 10 and 30.
voiceAmplificationAuxInLevel	string	HDL410, HDL310, Dual HDL300, HDL300	The appropriate auxiliary level based on the wireless headset microphone manual. Mic or Line
audienceMute	boolean	HDL410, HDL310	True mutes the in-room audience so remote participants only hear the presenter. False restores two-way audio. Requires Adaptive Voice Amplification to be active. AudienceMute returns to false after a conference ends.
dynamicBoostEnabled	boolean	HDL410, HDL310	Enable (true) or disable (false) Dynamic Boost. Requires firmware >= v1.9
microphoneDuckingEnabled	boolean	HDL410, HDL310	Enable (true) or disable (false) Microphone Ducking. Requires Adaptive Voice Amplification to be active. Requires firmware >= v1.9
adaptiveSoundModes	array	*HDX	Adjust the balance control settings for Conference and Music mode. Refer to the Get audio settings endpoint
voiceAmplificationGateThreshold	integer	*HDX, HDL410, HDL310	Adjust the threshold that triggers the external microphone's gate. Accepted values 0 to 256. Requires firmware >= v1.9 for HDL310/410.
voiceAmplificationUsbOutputGainLevel	integer	*HDX, HDL410, HDL310	Set the gain levels of external microphone for audio conferencing and recordings. This will impact volume gain heard by remote participants. Accepted values 0 to 40. Requires firmware >= v1.9 for HDL310/410.
audienceMute	boolean	HDL410, HDL310	True to enable or false to disable audience mute which mutes all microphone inputs except the external microphone. Requires firmware >= v1.1 for HDL310/410.
noiseSuppressionEnabled	boolean	*HDX	Enable Noise suppression AI to reduce pickup of disruptive room noises such as keyboard typing, paper rustling and chair movement.
speakerEqModes	array	*HDX	Adjust the speaker equalizer settings for Conference and Music mode. Refer to the Get audio settings endpoint