Nureva Dual HDL300 in a classroom in higher education
Higher ed audio

Classrooms

A brief guide to audio in higher education

The increasing popularity of distance learning highlights the demand for high-quality audio conferencing systems in educational settings. But classrooms pose a range of problems for audio conferencing, such as achieving full-room pickup. Learn how the two leading approaches to audio conferencing for classrooms stack up when it comes to pickup aesthetics, installation, price and more.

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Option A: Multicomponent systems

May include: Podium or lapel mic for the instructor, distributed mics for students, DSP, mixing board, amplifier, cables and speakers. Components are typically sourced from a single supplier. Requires UC&C-equipped computer.

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Audio pickup

The green circles show approximate voice pickup zones. The areas outside the circles are dead zones with diminished pickup. It could be difficult for remote participants to hear in-room participants in these areas working at displays or huddling in small breakout groups.

Overhead of traditional microphone system in a classroom in higher education

Multicomponent system scorecard

Pickup

Instructor: The most common methods are a separate podium or lapel microphone. Student: A common solution is multiple desktop omnidirectional microphones. Other strategies may include one or more in-ceiling beamforming mic arrays or hanging omnidirectional mics.

Installation

Installing a multicomponent system may entail a range of procedures ranging from creating pathways for cables for desktop and podium mics to installing in-ceiling mic arrays. Installation may require skilled technicians and make the room unavailable for up to several days.

Aesthetics

Distributed desktop microphones can cause clutter on tabletops while cables may also add potentially hazardous clutter to floors. Installed in-ceiling systems, including microphone arrays and separate speakers, are unobtrusive and can bring a polished premium look (with a price to match).

Calibration and mixing

Calibration can be a challenge. Getting the levels right so the instructor and students are balanced and can be heard by remote participants may require a technician and/or real-time mixing of levels (input and output). Reconfiguring the room will likely require recalibration.

Performance

A properly calibrated system can provide professional grade performance. This can be diminished if participants move away from the pickup zones. Accommodating dynamic lessons (where participants move and work at displays) may require reinstallation of the hardware.

Value

Prices for hardware and installation of traditional multicomponent systems vary widely, but they can be as high as tens of thousands of dollars. Institutions choosing this option should be sure to budget for ongoing maintenance and calibration (many providers offer service plans).

Option B: Virtual microphone system

Includes: Two wall-mounted integrated microphone and speaker bars, cables and connect module connected to a UC&C-equipped computer.

Nureva Dual HDL300 audio conferencing system in a classroom in higher education

Audio pickup

The HDL300 system employing virtual microphones provides full-room pickup. In-room participants can be heard by remote participants from anywhere in the room.

Overhead of the Nureva Dual HDL300 audio conferencing system in a classroom in higher education

Virtual microphone scorecard

Pickup

There is no need for external microphones for the instructor or students. The Dual HDL300 system’s virtual microphones provide true full-room pickup throughout spaces up to 30' x 50' (9.14 x 15.24 m).

Installation

The Dual HDL300 system’s two integrated microphone and speaker bars can be installed on the wall in less than 60 minutes. Installation is minimally invasive and no specialized technicians are required.

Aesthetics

The two 60" x 5.9" (152.4 x 15 cm) wall-mounted units are sleek and unobtrusive. They are available in black or white to suit virtually any decor. There is no need for external microphones, speakers or cabling.

Calibration and mixing

Calibration is automatic for any room configuration or meeting style. Nureva Room Manager enables adjustment of audio levels and integration with external speakers. It also upgrades the system through automatic firmware updates.

Performance

Provides professional grade performance. Thanks to its Microphone Mist™ technology, the Dual HDL300 enables true full-room pickup that may exceed the coverage of traditional systems, allowing for more dynamic meetings.

Value

The hardware cost for the Dual HDL300 system is a fraction of most multicomponent systems. There are also significant savings on installation and setup as the system can be easily installed by in-house personnel, and calibration is automatic.

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More than just classrooms

You’ve learned about the features and benefits of traditional multicomponent and virtual microphone systems for classrooms. Now see how they compare in other educational environments.

Dual HDL300 use cases

Large meeting spaces

See how the leading audio conferencing approaches compare at meeting the demands of faculty meetings, seminars and other gatherings in large meeting spaces.
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Dual HDL300 use cases

Collaboration spaces

Collaboration spaces present a range of challenges for audio conferencing systems. See how the leading approaches stack up.
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Dual HDL300 system

The Dual HDL300 audio conferencing system helps facilitate easier lecture capture and more interactive remote learning in large spaces. You get easy installation, autocalibration and true full-room pickup at a fraction of the price of traditional systems.

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Nureva Dual HDL300 audio conferencing system