Setting up multiple wireless mics with an HDL410 system

Most wireless headset and earset microphones with an XLR-out connection can be used with the Nureva^® HDL410 system and Voice Amplification Mode. More than one microphone can be used in situations with multiple presenters.

Preparation: Successful setting up of multiple wireless microphones begins with preparing the software and equipment.

Nureva Console client

Ensure the Nureva Console client application is up to date.

• Version 1.3.171812 is the minimum required to enable voice amplification.

HDL410 system

• Confirm the system has firmware version 1.1.209937 or later installed.

• Enroll the system into Nureva Console cloud to enable remote management.

Mixer and cables

• A multichannel mixer with XLR input and output is required. Each microphone will require a channel on the mixer.

• A balanced XLR to unbalanced 3.5 mm TRS adapter cable is required.

• XLR plug to XLR socket cables are required. Each microphone will require a cable.

• The cables, microphones and mixer are purchased separately. See your audiovisual reseller to purchase the cables and mixer.

• The Nureva audio system connect modules only support mono and unbalanced audio inputs.

Do not use a Y splitter to add more than one microphone to the connect module.

• This will send voltage from one receiver to another.

• It will be difficult to achieve the required amplitude from each microphone.

• Damage may occur to one or more microphone receivers.

Step 1: Connect the system

HDL410 system

1. Connect the USB cable (provided) to the USB-B port on the connect module.

2. Run the cable to a computer, connecting to a USB-A port.

3. Connect the provided Ethernet cables to the RJ45-1 and RJ45-2 ports on the connect module.

4. Run the Ethernet cables to the RJ45 ports on each microphone and speaker bar.

5. Connect a CAT5e Ethernet cable (not supplied) to the network port on the connect module.

6. Plug the CAT5e Ethernet cable into a network connection (router, modem, wall jack).

7. Connect the provided power cord to the connect module and plug it into an outlet or a power bar.

Connect the connect module, mixer and microphones

Using the balanced XLR to unbalanced 3.5 mm TRS adapter cable:

1. Connect the cable to the XLR output port on the back of the mixer.

2. Connect the cable to the Aux in port on the back of the connect module.

Using the XLR to XLR cables, connect each microphone to the mixer.

1. Connect each cable to an XLR input on the back of the mixer.

2. Connect each cable to the XLR output on the back of each microphone receiver.

3. Set microphone receivers to Line level output if this feature is available.

4. Turn off phantom power if the mixer has this feature.

5. Connect the mixer and microphone receivers to the power source using the power cables and power supplies.

Pair the transmitters to the receivers

Ensure each headset or earset is disconnected from the transmitter.

1. Pair each microphone individually.

2. Turn on the transmitter and pair, following the microphone instructions.

3. Set the group and channel according to the microphone instructions.

Step 2: Adjust volume output on computer

The volume setting on the computer affects the amplification level. Start with the volume set at a level that would normally be used in the room.

Step 3: Adjust settings in Nureva Console

The instructions below are completed using Nureva Console cloud. Voice Amplification Mode is not available in Nureva Console client.

1. Go to the sign-in page for Nureva Console and log in.

2. Select the Nureva audio system that was connected during Step 1.

Adjust speaker settings

1. Go to Device settings and open Speakers.

2. Select Custom and set the Bass and Treble settings to 50.

   • If there is no distortion during testing, the bass setting can be increased to meet individual preferences.

Dynamic boost

HDL410 systems with firmware 1.9 (or later) installed offer different presets for treble and bass than systems using firmware 1.8 (or earlier). Included in these presets is dynamic boost. When using Voice Amplification Mode along with dynamic boost, careful consideration is required when tuning the wireless microphone.

Learn more about using dynamic boost and Voice Amplification Mode.

Enable Voice Amplification Mode

1. Go to Device settings and open Voice Amplification Mode.

2. Enable Voice Amplification Mode by sliding the toggle to the right.

3. Click on Apply at the top of the device settings dashboard.

Microphone ducking

Microphone ducking is a setting that improves the experience for remote participants by preventing dual audio signals in situations when Voice Amplification Mode is used. When activated, microphone pickup by the HDL410 is muted and only the headset microphone picks up the presenter’s voice. Whenever the presenter stops speaking, the Nureva device’s microphones provide full-room pickup. HDL410 systems with firmware 1.9 (or later) installed offer this feature.

Adjust the aux-in level

• Set the Aux in setting to Line level to match the receiver.

Adjust the amplification level

1. Start with the Amplification level at Medium (Default).

2. Select the amplification level that provides the best quality voice amplification.

Step 4: Test the amplification

Test the system

1. Connect each headset or earset to the transmitters.

2. Stand approximately 1 to 2 meters in front of a microphone and speaker bar.

3. Have another person stand at the back of the room or a place where people will be seated.

4. Test each microphone separately.

5. If a UC&C client (e.g., Microsoft^® Teams, Zoom) will be used, test the amplification setup with a remote person in an audio or video conference.

Adjust amplification

1. Set the level (volume or gain) for each microphone channel to low on the mixer.

2. Adjust the output level for each microphone.

   • Adjust the gain on the microphone transmitter or receiver.

   • Slowly increase the level for the microphone channel on the mixer.

   • Fine-tune the transmitter and mixer for each wireless microphone until the required output levels are reached.

3. If there is feedback or squelch, lower the gain or dB setting at the microphone transmitter and ensure Aux in is set to Line level.

   • The gain or dB settings when using multiple microphones with a mixer will be different than when using a single microphone.