ADECIA RM-CG
Product Description
The RM-CG dynamic ceiling array microphone features multi-beam tracking technology which focuses on voices. Thanks to the special spiral layout of its microphone elements, the RM-CG provides the narrowest, most precise beam for voice capture, while continuous background noise is eliminated using Yamaha’s advanced noise reduction algorithms and Human Voice Activity Detection (HVAD). Combined with its beam tracking technology, it can clearly pick up individual voices, even when more than one person is speaking. Dante audio and the control and power are supplied through one LAN cable, while three different mounting methods – ceiling, VESA and wire mount – are included to suit any space.
A ceiling array microphone equipped with unique audio signal processing technology that enables high-quality communication
- Standard network audio support for “Dante”
- “Multi-beam tracking” that scans for human voice and track simultaneous speech allowing for lively conversations
- Delivers high intelligible voice with unique audio signal processing technologies
- Utilizes one PoE+ network cable connection avoiding troublesome wiring and enabling audio control via Dante
- Supports 3 types of mounting methods for use with a variety of ceiling conditions
- Automatic detection and configuration with Remote Conference Processor RM-CR
Equipped with Multi-beam Tracking—outstanding beamforming technology for safely capturing each speaker’s voice
RM-CG is a ceiling array microphone equipped with Multi-beam Tracking capable of tracking the simultaneous speech of multiple speakers. Since these beams detect and track the direction of the sound source simply by the speaker speaking, there is no need to adjust the position or range of sound collection in advance.
Achieving clear audio quality through full use of various voice processing technologies
As well as being equipped with all kinds of signal processing technologies such as Adaptive Echo Canceller, Noise Reduction, Dereverberation, Automatic Gain Control, and Auto Mixer, when combined with Yamaha’s original HVAD (Human Voice Activity Detection) technology, this ceiling array microphone offer clear, high-quality voice reproduction.
* RM-CG has audio signal processing technology that supports the conversational experience
Outstanding beamforming technology
Beamforming is a technology by which a directivity response pattern is formed using multiple microphones. The RM-CG can form up to four beams simultaneously. Narrowing the directivity of each beam and centering the beam on each speaker’s mouth enables this system to pick up sound while avoiding the negative impact of reverberation or ambient noise. Moreover, tracking with four beams offers the convenience of not having to set the sound collection range, and it prevents clipping of sound when a person begins to speak.
Adaptive Echo Canceller for Multi-beam Tracking
The Echo Canceller estimates the overall sound (including reflected sound) transmitted between speaker and microphone and reduces it (including reflected sound), thus preventing the voice from echoing back to the speaker. When the overall sound transmission is estimated perfectly, echo will not be generated. However, if the transmitted sound changes rapidly, the system will not adapt quickly enough and the likelihood of echo will increase. As mentioned above, the directions of the Multi-beam Tracking are constantly changing, but Yamaha’s Echo Canceller uses an algorithm capable of responding quickly to any changes. As a result, high echo cancellation performance is achieved despite the use of Multi-beam Tracking.
Noise Reduction greatly reduces ambient and background noise
Noise Reduction used in teleconferencing systems estimates the noise contained in a signal from the signal itself and attenuates its components. It enables clear sound collection by detecting steady noise and attenuating only those components.
Dereverberation provides high-quality sound even in reverberant spaces
The RM-CG analyzes the components of picked-up sound in real time, then estimates and removes any unpleasant reverberation components in the sound based on an acoustic model, enhancing the clarity of the picked-up sound.
Automatic Gain Control delivers clear, pleasant conversation to the other parties
The RM-CG reduces the fluctuation in voice levels sent to other parties by automatically adjusting the gain depending on the levels of various voices picked up. In addition, HVAD (Human Voice Activity Detection) works to adjust the voice level only. In this way, HVAD prevents unpleasant sounds from being generated without unnecessarily raising the level of unwanted sound.
Automatic mixing using unique algorithms
General gain-sharing automatic mixing is often used when a microphone is mounted close to the speaker. When applied to the RM-CG, it tends to mix the four beams in a similar way. For this reason, the RM-CG uses automatic mixing optimized for the installation conditions, which demonstrates strong performance even in environments such as ceiling installations or rooms with a lot of reverberation.