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HomeShopAccessoriesMicrophones Acoustic Magic Voice Tracker II

Acoustic Magic Voice Tracker II

$360.00

Since the Voice Tracker™ array microphone can pick up talker throughout the entire room, it has often been used for conferencing application

It became clear from customer feedback that incorporation of a high-quality acoustic echo cancellation (AEC) algorithm would broaden the Voice Tracker’s application by enabling full duplex VoIP based conferencing at a fraction of the cost of conventional conferencing systems.

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Description

The addition of a high-quality AEC algorithm to our internal DSP is the main differentiating feature of the Voice Tracker™ II Array Microphone, but it has several other attributes as well.

Turns inexpensive VoIP based telephony systems like Skype and Adobe Connect into Conferencing tools.

Electronically Locates & Automatically Steers Toward The Talker

A crucial audio requirement for conferencing is the elimination of acoustic echo (sound from the far end talker picked up by the open mic and sent back). The Voice Tracker™ II Array Microphone’s internal AEC algorithm provides performance that rivals or exceeds that of AEC boxes costing several thousand dollars.

Connect the Voice Tracker™ II Array Microphone to your PC based VoIP software and eliminate the need to use headphones; all the near end talkers will be heard, even if they talk softly or are far away from the mic, and the far end talker will hear no echo.

Audio Spectrums for AEC

Audio Spectrums

Acoustic Echo occurs when an open mic picks up a far end talker (from the loudspeaker) and sends it back to the far end talker (as an echo). In the above charts, the bottom chart shows the audio from near end and far end talkers transmitted by the Voice Tracker™ II with acoustic echo cancellation off. The top chart shows a similar audio transmission with the AEC turned on.

Improved Portability

The Voice Tracker™ II is significantly smaller than the Voice Tracker™ I. The Voice Tracker™ II’s primary audio output is USB and it is powered by its USB connection, eliminating the need to be connected to wall power. Not only does this remove the need to carry the wall power converter, it eliminates the need to have different wall power converters for different countries.

Talker Location Signal

Since the Voice Tracker™ automatically and electronically steers a listening beam to the active talker, it knows the location of the talker. In the Voice Tracker II this information is made available outside the DSP as a RS 232 serial word through a DB-9 Jack. A sophisticated customer can use this information to point a camera, or turn the head of a robot toward the talker. Note that Acoustic Magic does not provide any algorithms for the use of the location information.

AM-Products-VT2

Voice Tracker™ II Specifications

Range:

  • 20+ feet for meeting recording (depends on acoustic characteristics of the room).

AEC Performance:

  • G.167 Compliant
  • 80 dB of echo cancellation in single talk
  • 40 dB of echo cancellation in double talk
  • 160 ms of echo tail length
  • 14 dB of background noise reduction
  • Convergence time of less than 100ms
  • Sample rate: 48KHz

Primary audio output:

  • USB

Secondary audio output:

  • Mic level or Line level (switch controlled) 3.5mm mono jack
  • 6ft male/male audio cable (optional) 500 ohm output impedance

Talker location signal accuracy:

  • 5 degrees

Frequency Response:

  • 100Hz to 11,250 Hz

Physical Dimensions:

  • Length: 11.5″
  • Height: 1.5″
  • Weight: 0.75lbs

Power Equipment:

  • Powered by USB (wall-powered converter optional)
  • 5V DC
  • 400 ma

Voice Tracker™ II Features

  • Automatic electronic steering of “listening beam” to talker location
  • Two stage noise reduction (spatial filtering and noise reduction processing)
  • Built in High Quality Acoustic Echo Cancellation.
  • 6 element, 10-inch long mic array for long range
  • Mute Mode
  • 5 element “in range” light to indicate location of chosen talker and sufficiency of signal
  • Talker location signal thru DB 9 jack (cable optional)

Compatible with a variety of operating systems including:

  • Apple/Macintosh : Mac OS, Mac OS X, Mac OS X 10.11
  • Microsoft : Windows 3.x, Windows 95,Windows 98,Windows NT, Windows 2000,Windows ME, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10
  • Linux
Additional information
Weight 2 lbs
Shipping & Delivery

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      • Dragon Medical One
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      • Dragon® Medical Practice Edition 4
      • Upgrade to Dragon Medical Practice Edition 4
      • Dragon Medical Bundles
      • Supported Medical Specialties
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      • Try SayIt FREE for 7 Days!
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    • SayIt Microphones
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