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Lectrosonics, Inc. - DMTH4
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Digital Telephone Hybrid

Series: LecNet2™

Model: DMTH4

  • 3-in/24-out digital matrix architecture
  • Fully integrates with DM Series processors
  • Telephone, codec and auxiliary inputs and outputs
  • Two Acoustic Echo Cancellers - 126 ms tail time
  • Line echo canceller - 30 ms tail time
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The DMTH4 integrates telephone lines, video codecs and external audio sources into the digital bus structure of DM Series processors so these sources operate as though they are another microphone or audio input in the sound system. The unit is much more than just a telephone interface. Instead, it is a complete DM Series digital matrix processor, with a 3-in/24-out digital matrix, automatic mixing and comprehensive signal processing on every input and output. In essence, it simply connects to telephone lines, video codecs and external audio sources instead of mic/line inputs and outputs and integrates seamlessly with DM Series matrix processors.
  • 3-in/24-out digital matrix architecture
  • Fully integrates with DM Series processors
  • Telephone, codec and auxiliary inputs and outputs
  • Two Acoustic Echo Cancellers - 126 ms tail time
  • Line echo canceller - 30 ms tail time
  • 6 filters plus compressor on each input
  • 6 filters plus compressor/limiter on each output
  • USB and RS-232 interfaces for setup and control
  • Fully balanced audio signal flow through entire system - no pin 1 problem
  • Digital I/O ports for "daisy chaining" and to connect other LecNet 2 devices
  • Proportional gain auto mixing algorithm with AutoSkew™ - US Patent 5,414,776
  • Ultra high speed centralized acoustic echo canceller allows unlimited expansion of system microphone inputs - literally hundreds
 
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