In System Preferences > Sound, select your new aggregate device as your Input source.

Rename your aggregate device by double clicking it to make it easier to find and select in the following steps.

Select the microphones you wish to add to the aggregate device by checking the box next to each microphone's name.

Click the ' +' button in the bottom left corner to create a new aggregate audio device.

Connect your USB microphones to your Mac and open ' Audio Midi Setup' using the Finder.You can create an ' aggregate audio device' in your computer's settings that combines multiple inputs into one overall source. If the Output is deselected on your channel, the audio from the channel will still be sent to your video conferencing program Select the Output that you chose from Step 4. Your Output options are next to the channel's 'Fader Gain' slider.Assign your Hardware Inputs to the Output you selected.Choose how you want to hear the audio from Voicemeeter by selecting your computer's speakers, headphone output, the output on your USB microphone, or any other connected device you wish to route your audio through.If you want to hear yourself through Voicemeeter: Match your Input/Output settings within your video conferencing software (Zoom, Teams, etc.) to your computer's Sound settings from Step 5.Set Voicemeeter as your Input Device and Output Device in your computer's settings.Click on the number next to 'Preferred Main Sample Rate' for a dropdown menu where you can select '441000 Hz' or '48000 Hz'.In Voicemeeter, click Menu > System Settings/Options.If you're experiencing pops, clicks or noise, you may need to switch your Sample Rate from 44.1kHz to 48kHz.Make sure to listen if your microphone is distorting - if so, bring the gain back down until you have a clear sound. A healthy input level should peak around 75% of the audio meter.Input gain can be controlled using Voicemeeter's ' Fader Gain' slider, or from your microphone's physical gain control (if applicable).Adjust your input gain until the meter crosses into the green.

For more information on Windows Audio Drivers, see this article.

Your microphones may appear as ' USB AUDIO CODEC', ' MXL AC44' or ' MXL USB MIC'.

Open Voicemeeter and select your Hardware Inputs.

If USB microphones don't power on, you'll need a powered USB hub.

If possible, connect microphones directly to USB ports.

Connect your USB microphones to your laptop or desktop computer.

MXL has no affiliation with VB Audio and this software is used for example purposes only. In this example, we use VB Audio's Voicemeeter which is free, but donation based. You will need a virtual mixer to sum together your multiple hardware inputs. Below are instructions for connecting multiple MXL USB microphones to your Mac or PC for use with Zoom or other video conferencing and streaming software.

Usb audio input mac