Adjusting HDL310 microphone settings

When using Nureva HDL310 systems, microphone settings are available. This will allows for the fine tuning of the audio, improving intelligibility for remote participants. Systems will need to be updated to device version 2.3.3591 or newer to use the latest microphone adjustments.

Available microphone settings

Adjusting microphone settings — firmware 1.9 or earlier

Nureva App

1. Connect to the HDL310 using the Nureva App.

2. Go to Settings.

3. Open the Microphone page.

4. Pickup setting is available (mono or stereo) and the microphone gain setting will be visible.

5. To adjust microphone gain, drag the slider to the left to reduce gain and drag the slider to the right to increase gain.

Nureva Console

1. Open Nureva Console

2. Choose the HDL310 system to be adjusted.

3. Scroll down to show the Settings options.

4. Open the Microphone drop-down menu.

5. Drag the slider to the left to reduce microphone gain and drag the slider to the right to increase microphone gain.

6. If using Nureva Console cloud, click the Apply button.

How it works

The microphone volume gain setting is a single slider, with check marks at the 1/3 and 2/3 points. The default (0 dB) setting is at the 1/3 point. Dragging the slider all the way to the left will reduce microphone gain by 6 dB. Dragging the slider all the way to the right will increase microphone gain by 12 dB.

What it does

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.This setting does not simply adjust the microphone level in the computer operating system. It creates a second microphone gain adjustment in series.

When to use it

This setting is intended for situations where the UC&C client is taking control of the microphone volume setting in the operating system and making the audio picked up by the Nureva system either too loud or too quiet for remote participants.

Adjusting microphone settings — firmware 2.0 or earlier

Nureva App

1. Connect to the HDL310 using the Nureva App.

2. Go to Settings.

3. Open the Microphone page.

   • Drag each slider down to reduce the low, mid and high frequency gain.

   • Drag each slider up to increase the low, mid and high frequency gain.

How it works

Low, mid and high frequencies

The microphone gain setting offers a three-band equalizer with Low, Mid and High sliders. This allows adjustment of the microphone gain for each frequency range. The default setting is 0 dB, and range from -8 dB to 12 dB.

Adjust gain uniformly

Enabling this setting allows adjustment to all three sliders at the same time, adjusting the overall gain. The default setting is 0 dB, and range from -8 dB to 12 dB.

Reset to default

Pressing the Reset to default button returns all of the microphone settings to default and the overall gain back to 0 db.

What it does

The microphone volume gain setting adjusts the volume of the processed microphone signal sent from the HDL310 system to the connected computer. Low, mid and high frequency adjustments allow for finer adjustments to address issues in tonal quality.  By adjusting the frequency response of the microphone signal clarity can be improved, unwanted noise reduced, and overall sound quality enhanced. These settings typically allow you to boost or cut specific frequency ranges to achieve a desired tonal balance.

When to use it

Improving microphone tonal quality

Low, mid and high frequency adjustments allow for fine tuning the microphone audio quality, troubleshooting of common microphone pickup issues and improving overall intelligibility of the microphone pickup. If experiencing muddy audio, it is recommended to reduce the low frequency setting. For bright audio situations, it is recommended to reduce the high frequency setting.

Improving overall microphone gain

When a UC&C client takes control of the microphone volume at the operating system level the result can be the far-end audio being too loud or too quiet for remote participants. Using the Adjust gain uniformly setting and adjusting all three sliders up or down can help level out the volume.