First, a strong appeal of Zoom rooms is price/performance. The Voice Tracker array mic creates value in this regard. It has the same pickup range and sound quality as array microphones costing ten times more.

The Voice Tracker I can pick up talker at range of 30 Ft. Two or more can be easily combined for improved range and sound quality, and still be much less expensive than its competitors.

Ease of use and set up are also important. All the processing (beamforming, noise reduction, AEC) are done inside the unit. All that the user need do is plug it in. The voice Tracker automatically and electronically steers a listening beam to the active talker. No set-up of listening beams to expected talker locations is required.

Reliability is also a requirement. No one wants the microphone to fail during a conference. Voice Trackers have been shipping since 2002, with extremely low failure rates.

Since Zoom has a good AEC of its own, the less expensive Voice Tracker I can be used with Zoom, The Voice Tracker I has been certified by Zoom.

See: https://www.acousticmagic.com/news/acoustic-magic-certified-for-use-with-zoom/

The Voice Tracker II has a built, fast adapting AEC for use with VoIP product with less robust AECs.

30 foot Zoom room comparison recording of the Voice Tracker I with an array mic costing 10 times more


Both microphone were mounted on the front wall near the display.

We have found that the combination of ZOOM.US video conferencing application with the Acoustic Voice Tracker™ I and II array microphones creates an outstanding solution to meet the demand for small to medium sized video conferencing requirements.

ZOOM.US enables users to have an interactive, high quality video and audio conference from laptops, desktops and other mobile devices with up to 25 attendees. It includes features like screen sharing and recording capabilities. The attendees ARE NOT required to have a license to use ZOOM.US. This means that, as a host, you can invite up to 24 others into an interactive video conference via an email and those attending do not need to login. This makes it simple to invite others to the conference quickly and easily. ZOOM.US works on devices like, iPhone (iOS), iPAD (iOS), Android devices (cell phones and tablets), Mac (OSX.6 and newer), and Windows (Windows XP and newer).

To enhance the meeting experience, the university is implementing the Acoustic Magic Voice Tracker™ I and II microphones to provide coverage throughout the entire room for recording or conferencing applications. The Voice Tracker™ eliminates the need for multiple microphone/mixer setups, which require expert installation and are expensive. We use the Voice Tracker™ II in smaller rooms and the Voice Tracker™ I in larger rooms. We have found that the AEC in the ZOOM.US video conferencing application works well with the Voice Tracker™ I.

Rick Seeley
Instructional Technology Research and Development
University of Northern Iowa