Author Archives: Acoustic Magic

Connecting Voice Tracker Array Microphones to Computers with TRRS Jacks

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Some computers now have a single TRRS 3.5mm jack which combines mic input with speaker output instead of the tradition two jack approach (one jack for mic input and the other for speaker output).

The traditional jacks are TRS.

The Voice Tracker array mics have TRS 3.5mm stereo connectors.

In order to connect to a computer with a single TRRS jack, a TRS to TRRS adapter is required.

A better approach might be to use a 3.5mm TRS to USB adapter like our part 102B.

The sound quality thru USB may be better than the sound quality of the computer’s internal sound card.

Both the TRS to TRRS and TRS to USB adapters are reasonably priced

Connecting Multiple Voice Trackers Using a Mixer

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For better coverage in large rooms, several Voice Tracker I and Voice Tracker III can be combined with a mixer.

Mixers that accept unbalanced, mic level stereo input through a 3.5mm connection is preferred for simplicity, even if simple adapters are required

Nova Southeastern University used the Extron MCV 121 Plus in dozens of rooms. See: https://www.acousticmagic.com/about-us/user-comments/#alinzels

The Extron MVC 121 Plus is a compact, three input stereo audio mixer featuring a digital signal processing platform for audio signal mixing and control. The MVC 121 Plus features a stereo line level input and two mic/line level inputs with 48 volt phantom power for condenser microphones, plus fixed and variable stereo line level outputs. It offers gain, filter, tone processing, and parametric EQ. Quick and intuitive configuration using the DSP Configurator™ Software allows the MVC 121 Plus to be installed in very little time. The MVC 121 Plus is ideal for presentation applications that require line and microphone audio mixing with DSP in a small form factor.

Other Integrators recommend the Yamaha MG06X Mixer

Less expensive approaches include simply using a 3.5mm Y. Several universities have had success with that approach.

A more expensive approach is to use a DSP device like the  BiAmp Tesira.. See: https://www.acousticmagic.com/news/combining-two-voice-tracker-greater-room-coverage/

This approach is best implemented by a profession AV integrator. Care must be taken in the connections. If you are trying to connect to a DSP, connect the tip and the ring to Positive and Negative on the DSP.

Do not connect the ground to the DSP.

Using the Voice Tracker III for web-conferencing in NYC

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Since June of 2019 we have successfully deployed many Voice Tracker microphones for a combination of teleconference and web conferencing rooms. In one specific not-for-profit location, they have had microphone issues in the space leftover from the original vendor. No amount of DSP and adjustments made the space usable for their purposes. We brought in Voice Tracker III to the space and they could not believe the difference in quality. With one microphone connected by the monitor, their entire room was picked up with a clarity they had not ever had in the space.

In my opinion the positioning of the Voice Tracker in the same audio plane of the meeting attendees gives an audio presence that no ceiling microphone has been able to capture. The fact that the Voice Tracker is a reasonable cost makes it an easy sell to the client after the demonstration.

Due to the NYC COVID 19 shutdown many universities we are working with are looking to create hybrid learning environments with Zoom. The Voice Tracker lends itself perfectly to these types of spaces, as many fit the size and price constraints we are being tasked with in the coming months.

Panopto lecture recording officially endorses the Voice Tracker II

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Sudbury MA – April 24, 2019 – Lecture recording has been the most outstanding application for the Voice Tracker I.

More than 400 Universities use them.

Panopto, one of the leaders in the field of lecture capture systems, recently tested the Voice Tracker II, and endorsed it.

See: https://support.panopto.com/s/article/Officially-Endorsed-Panopto-Equipment

Note: “Devices listed in bold are particularly loved by the Panopto team.”

Zoom Room integrator 323link sells his 75th Voice Tracker I array microphone

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323link was an early advocate of the combination of Zoom Rooms and Voice Tracker I array microphone to provide cost effective yet high performance video conferencing.

VoIP products like Zoom make video conferencing easy and affordable. At $279, the Voice Tracker I enhances that affordability, providing long pickup range and good sound quality at a price as much and 1/10th that of competitive array microphones.

The AEC in Zoom is robust enough so we don’t need the built-in AEC in the Voice Tracker II.

The Voice Tracker I is easy to set up and is extremely reliable, minimizing the need for IT support. We have had Voice Trackers installed for more than 8 years without problems.

A single Voice Tracker I can cover a 30 foot room, and two or more Voice Trackers can be easily combined for greater coverage.

The price/performance advantage of Zoom and Voice Tracker I has often encouraged our customers to install multiple rooms.

Don Cottom
CTO
323link, Inc

Replacing a Polycom SoundStation with a Zoom/Voice Tracker array microphone combination for better pickup of conference participants

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We have been using a Polycom SoundStation IP 6000 with two expansion mics for quite some time, but the far end participants complained that they had trouble hearing all the participants in the near end conference room. Our room size is 30×15.

Since we already had a Zoom VoIP, we tried calls using a Voice Trackerr, connecting it to the employees computers prior to making their Zoom call.

Our far end participants then reported that they could hear everyone in the room clearly, and we didn’t have to worry about people in the conference room moving the microphone close to them.

And with Zoom, we could do video as well as audio.

Jon Newman
Director of Operations
Kaon Interactive
3 Mill & Main
Suite 200
Maynard, MA 01754

Acoustic Magic Ships its 18,000th Voice Tracker I Scanning Array Microphone

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Acoustic Magic ships its 18,000th Voice Tracker I scanning array microphone

Sudbury MA – Jan 16 – VoIP conferencing applications like Zoom and Skype drives resurgence In Voice Tracker I sales.

The Voice Tracker I scanning beamforming array microphone has long been a gold standard for lecture and meeting recording because of its 30 ft pickup range, wide field of view, ease of use, reliability, and low cost. “Schools love them because they can capture questions from the class, as well as the lecturer as he moves around the room” says Bob Feingold, President of Acoustic Magic, Inc.

Now that VoIP products like Zoom and Skype have good acoustic echo cancellers, Voice Trackers are finding acceptance in small conference rooms and huddle rooms.

VoIP has changed the economics of conferencing, leading companies and hospitals to install conferencing capability in multiple rooms across their facilities. The low cost of the Voice Tracker I, under $300, encourages widespread installations within a site.

Bob reports that “even though the Voice Tracker I is 5-10X less expensive than other array microphones, its audio quality and pick up range is comparable. Furthermore, its automatic scanning beamforming technology make it much easier to set up. It is not necessary to configure multiple listening beams, and there are no dead spots.”

Voice Trackers are simple, plug and play microphones. All the beamforming processing is inside the unit. It is connected to the computer either thru the computer’s soundcard using a 3.5mm plug or thru a USB adapter. The user is free to choose the best in class camera and loudspeaker to complete the VoIP installation.

The Voice Tracker I has a built in ceiling or wall mount. It can be used on a table, or removed from the table to reduce clutter.

The Voice Tracker II has a built in AEC for use with VoIP products that do not have a robust AEC.

An Interesting Podcast by Conference Rooms Systems About Acoustic Magic

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Conference Room Systems is a well regarded AV integrator that puts together VoIP conferencing system packages for easy implementation n by its customers. These packages have been designed meticulously by their engineers and installers using only the best components available on the market. Voice Trackers are included in many of their packages.

We recently sat down with Conference Room Systems for a podcast about Acoustic Magic and our products:


Read The Full Interview Here