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Phoenix Audio MT107A Car PC Carputer Microphone Echo Cancelling
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The MT107A is a DSP based echo canceling and noise
reduction processing box. It enables hands free and
headset free audio communication in your vehicle.
Up to two microphone inputs through a standard 3.5mm stereo audio jack
Controllable input level and phantom power supply via free downloadable utility
Analog output through a standard 3.5mm jack
Digital output through USB connection
Powered through USB cable
Far-end signal through a 3.5mm stereo analog connection
Far-end output maintaining similar audio quality and bandwidth as the Far-end input
Phoenix’s proprietary superb echo canceling algorithm, noise suppression, and signal conditioning
100% Full Duplex Echo Cancelling – no attenuation during full-duplex
Acoustic Echo Canceling > 40dB
Noise Reduction > 10dB
Residual noise suppressed to the environment noise level
Low delay (10msec)
Convergence (also during full duplex) 40dB/sec
Microphone inputs (IN1): Connected to the tip and ring of a stereo 3.5mm audio jack (unit will function properly even if only one of the inputs is connected). The following microphone settings are available using the setup software
Mic level (280mV peak-to-peak)
Line level (4V peak-to-peak)
add 6dB boost
Optional 3V power supply (phantom)
*Units are preset to Mic level, no 6dB boost and Phantom On
Far end (speakers’ signal) input (IN2): stereo signal connected to the tip and ring of a 3.5mm audio jack. Line level 2V Peak-to-Peak maximum
Far end (speakers’ signal) output (OUT2): stereo out – identical to the Far end in.
System Out (OUT1): mono signal connected to the tip of a stereo 3.5mm audio jack (ring is not connected). Level can be configured through the setup software to:
Line level: 2V peak-to-peak
Mic level: 200mV peak-to-peak
Units are preset to Line level
How To Connect:
IN1 (microphone input): Connect the supplied stereo microphone or your own microphone into this jack (input level defaulted as Mic level with 3V phantom supply).
OUT1 (audio output): Using a 3.5mm to 3.5mm cable (not supplied), connect OUT1 (tip) to your system’s audio input. You can use the USB connection instead if a digital connection is utilized.
IN2 (“Far-end” or speaker input): Connect to your system’s output (speaker output) signal. This signal is necessary for the echo canceller to function (input set as line level).
OUT2 (speaker output): Connect to your speakers.
OUT2 is a stereo speaker output setup as Line level. The signal through this connector is similar in quality to the Far-end input (preventing degradation in quality of your Hi-Fi sound).
Note: you can select to split the speaker signal, by connecting our unit with one end of the split and your speakers directly with the other (see the dashed line in the diagram below).
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