8,192 virtual microphones
The HDL300 system supports Zoom, Microsoft® Teams, Lifesize®, Cisco Webex®, RingCentral, Intel Unite® and GoToMeeting®. It’s also compatible with major room controller brands like Cisco®, Crestron®, QSC® and StarLeaf – plus many more!
Integrated microphone and speaker bar
Width: 60.0" (152.4 cm)
Height: 5.91" (14.9 cm)
Depth: 3.5" (9.0 cm)
Weight: 18.0 lb. (8.2 kg)
Connect module
Width: 6.5" (16.5 cm)
Height: 1.41" (3.6 cm)
Depth: 4.31" (10.9 cm)
Weight: 1.5 lb. (0.7 kg)
Shipping
Width: 64.75" (164.4 cm)
Height: 10.63" (27 cm)
Depth: 9.5" (24.1 cm)
Weight: 51.0 lb. (23.1 kg)
Part number
HDL300-B, black bar
HDL300-W, white bar
Interface to computer
USB type B 2.0 x1
Auxiliary out
3.5 mm unbalanced stereo jack x1
Auxiliary in
3.5 mm unbalanced stereo jack x1
Connection port
RJ-45 x2
For small spaces up to
18' x 18' | 5.5 x 5.5 m
For large spaces up to
30' x 50' | 9.1 x 15.2 m
Our 15-minute, no-pressure live online demo is the best way to hear the difference.
Traditional
With many beamforming systems, microphone pickup is determined solely by the direction each mic is aimed. This is significant because the automatic gain control circuit for each mic is not able to identify a talker’s distance from the mic. The system also might not be able to differentiate talkers from other sound sources (e.g., HVAC, typing) in a beam so that desired and undesired sounds get equal treatment. Also, systems using directional pickup often require a higher level of processing to be added to a given signal.
New
The HDL300 system with Microphone Mist technology fills a mid-size space with thousands of virtual microphones that tell the system the best sound source of each talker in the room – whether they are stationary or moving about the space. This enables position-based gain control (PBGC), which allows the system to make specific optimizations to the microphone system while also enhancing the system’s ability to process each sound source in the room. The result is more natural conversations because the system appropriately adjusts each talker’s gain while keeping ambient noise at a quieter and more consistent level.
Traditional
AGC is the approach used in most conventional audio conferencing systems. AGC keeps the audio output level within a targeted minimum-maximum range by adding gain to the signals from talkers who speak more quietly and reducing gain on the signals from talkers who speak more loudly. But AGC on a microphone treats the audio signal holistically – increasing the signal from the talker and ambient sounds equally. When it raises the talker’s level, it also raises the level of the ambient noise floor for an unsatisfying listening experience.
New
PBGC describes Microphone Mist technology’s ability to listen simultaneously to each of the thousands of virtual microphones it deploys in a room – these are the “positions” in PBGC. Identifying the position of each sound source, Microphone Mist technology adjusts the gain so talkers can be heard clearly while the level of ambient noise is kept lower and more consistent for clearer, natural-sounding conversations.
Traditional
Most conventional systems (especially complicated in-ceiling installations) deal with acoustic return echo with a manual approach involving a technician calibrating the echo canceller system to the distinct acoustic properties of a room. A short tone (the calibration signal) is initiated through the speaker system and then picked up by the microphone system. The technician measures the acoustic return echo delay and uses that data to calculate echo canceller parameters. It’s a process that can be time-consuming and intrusive. And since the room must be quiet during the process, it cannot be performed while a meeting space is in use – it must be taken offline. Additional changes to the room may also impact echo canceller performance, necessitating an additional manual recalibration of the system.
New
Continuous autocalibration, a proprietary process built into Nureva’s Microphone Mist technology, solves these issues. Continuous autocalibration gives a Nureva audio system the power to measure the acoustic environment of a room in real time for each microphone and speaker combination. It is able to do this by using a constant sound mask-like signal that, if heard at all, is perceived as the background ambient noise common in most commercial environments. Continuous autocalibration lets the echo canceller automatically deliver consistent performance throughout any call without the need for a technician or taking a room offline.
Traditional
Traditional approaches for microphone coverage for mid-size spaces, such as beamforming technology, subdivide a room into large zones. If a beamforming array has three zones, you get low spatial resolution information. And with a small number of large zones to cover, traditional systems are not able to discriminate individual sound sources within each zone. This means its ability to optimize individual sound sources in a zone for the correct gain setting, noise filtering and overall audio signal optimization is diminished.
New
The HDL300 system’s Microphone Mist technology fills a room with up to 8,192 virtual microphones – meaning it subdivides the space into thousands of spatial bubbles, which in turn means higher spatial resolution of audio signals. The system can isolate and zoom in on individual talkers, giving it the audio information it uses to optimize both acoustic microphone pickup performance and post-processing of the audio signal.
At Nureva, we keep things simple. It’s why installing the HDL300 system is an easy DIY procedure that usually takes less than an hour. Hang the microphone and speaker bar on the wall (with just two screws and plugs), run a POE cable to the connect module and then a USB cable to a computer with UC&C software and you’re ready.
