Description
Yamaha PJP-EC200 Projectphone Internet Conferencing Echo Cancellation & Sound System Tuning Appliance
The PJP-EC200 is a remote conferencing echo canceller device for Internet and video conference systems. When combined with a public address system (microphones, speakers, and a mixer), it may be used for quite a few demanding applications.
SPECIFICATIONS:
GENERAL
*Interfaces: LINE OUTPUT (L/R): Stereo RCA pin-jacks, CONFERENCE (IN/OUT): Stereo mini jacks, MIC/LINE INPUT: XLR/PHONE combo jacks, 2 ch (48-V phantom power supply supported)
*Max. power consumption: 6 W or less
*Radio interference standard: VCCI-class A
*Operating environment: Operating temperature: 0°C to 40°C, Operating humidity: 15% to 85% (no condensation)
*Dimensions: 270 (W) x 42.6 (H) x 180 (D) mm (not including cables and terminals)
*Weight: 753 g (with the exception of power adapter)
*Power supply: AC 100 to 240 V (50/60Hz)
*Accessories: AC adapter x 1, Power cable x 1,CD-ROM x 1, Installation/Setup Manual x 1
AUDIO
*Frequency range: 100 to 20,000 Hz
*Signal processing: Adaptive echo canceller / Feedback suppressor / Noise reduction / Auto gain controller
*Arrival time of direct sound: 120 ms maximum
*Echo cancelling time: 400 ms maximum
*Echo cancelling capacity: 60 dB maximum
*Noise reduction: 17 dB maximum
INPUT SPECIFICATIONS
*MIC/LINE INPUT (IN1/IN2): XLR, balanced. IN 1 & 2 (MIC); XLR, balanced, IN 1 & 2 (LINE); PHONE, unbalanced, IN 1 & 2 (MIC); PHONE, unbalanced, IN 1 & 2 (LINE). CONFERENCE IN: Mini jack, unbalanced
OUTPUT SPECIFICATIONS
*MAIN OUT: RCA pin jack, unbalanced. CONFERENCE OUT: Mini jack, unbalanced, CONF.OUT (LINE); Mini jack, unbalanced, CONF.OUT (MIC)
SMOOTH DUPLEX PERFORMANCE – Echo can occur in an audio conference system when the microphones pick up the audio reproduced from the speakers. The PJP-EC200 enables smooth full-duplex talk by incorporating a high-performance adaptive echo canceller that gets rid of any sounds reproduced by the connected speakers from the sounds picked up by the microphones. FEEDBACK SUPPRESSOR – The PJP-EC200 also includes a feedback suppressor-type howling canceller for large meetings or conferences. For instance, an instructor giving a remote lecture or seminar can use it to stop feedback in the PA system at the live venue. Of course it also functions as a stand-on my own feedback suppressor
ADAPTIVE ECHO CANCELLER – The PJP-EC200’s adaptive echo canceller Robotically adjusts the echo-filter factor in step with the operating environment, in addition to any connected audio equipment. Even when a movable microphone (handheld, tie-pin type, and the like) is used, the PJP-EC200 follows the microphone Robotically and efficiently gets rid of echoes. 20 kHz WIDE BANDWIDTH ECHO CANCELLER – The built-in wide bandwidth echo canceller also supports HD audio codecs including AAC-LD. It picks up and plays back without a loss in sound quality, providing for smooth conversations
2-CH ECHO CANCELLER – The PJP-EC200 is equipped with a dual-channel adaptive echo canceller. Because the echo canceller parameters for each and every channel can also be adjusted one after the other, the echo canceller works effectively even when two various kinds of microphones (such as boundary and handheld microphones) are used, or when the microphones are separated. 2-CH MIXING – The built-in 2-channel mixer lets you in an instant connect up to two microphones to the PJP-EC200. An external mixer is required only when three or more microphones are needed
EVEN WHEN NEXT TO A PROJECTOR, NOISE REDUCTION ELIMINATES THE SOUND OF THE FAN – The built-in noise reduction gets rid of noise even in rooms with constant sound such as from projectors and air conditioners. Noise is got rid of from the ambient sound picked up by the microphones. The listener hears only clear voices. As well as, the PJP-EC200 can put off noises from sounds received from the other end of a call. It produces clear voices even supposing the other device does not toughen noise reduction. AUTO GAIN CONTROLLER – Robotically adjusts the pickup gain to keep the volume of picked up sounds constant. Because it cleverly minimizes the volume differences caused by distances between talkers and their microphones, users can pay attention to the conference without being attentive to the position of the microphone
AUTO ANALYZER – The auto analyzer function Robotically enters the microphone-speaker distance and feedback suppressor (notch filter) settings that are best suited for the operating environment.It optimizes the unit’s audio settings to minimize feedback, and corrects microphone-speaker audio delay which frequently happens in large rooms. DIP SWITCH – By the use of the DIP switch at the rear panel of the PJP-EC200 in combination with the auto analyzer function, users can easily configure the unit’s settings. No PC connection is required. GUI SETUP – With an Ethernet connection, users can remotely enter detailed settings on a PC by way of a network
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