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SHOP BY BRAND > ACOUSTIC MAGIC > ACOUSTIC MAGIC VOICE TRACKER 201
ACOUSTIC MAGIC 201 Voice Tracker II Array Microphone

ACOUSTIC MAGIC VOICE TRACKER 201


    MANUFACTURER: ACOUSTIC MAGIC
    PART NUMBER: ACOUSTIC MAGIC VOICE TRACKER 201

    PRICE: $329.95

    AVAILABILITY: IN STOCK

    QUANTITY:

    ACOUSTIC MAGIC VOICE TRACKER 201


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

    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. The Voice Tracker II turns inexpensive VoIP based telephony systems like Skype and Adobe Connect into Conferencing tools.

    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.

    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.

    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; Microsoft : Windows 3.x, Windows 95,Windows 98,Windows NT, Windows 2000,Windows ME, Windows XP, Windows Vista, Windows 7

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

    AEC Performance
  • G.167 Compliant
  • 70 db of echo cancellation in single talk
  • 40 db of echo cancellation in double talk
  • 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 ministereo jack
  • 6ft male/male audio cable (optional) Same signal on tip & ring 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

    Note from Acoustic Magic on the VoiceTracker II:

    Some early users of the Voice Tracker™ II requested that we increase the USB audio output level. The level wasn't as strong as the analog audio level, which made the Voice Tracker™ II less effective at long-range in the USB mode.

    The USB output level is easily controlled by a setting in the USB chip. However, if we made the level too high, the output would be too strong for close in applications like automatic speech recognition with Dragon NaturallySpeaking.

    Our solution was to make two USB output levels, controlled by the switch that was already on the unit to enable two analog output levels (mic level and line level).

    So now, if you find the audio output level in USB is a little low when the switch is in the "mic level" position, changing the switch position to "line level" will increase the signal by 16 DB.

  • Compare Voice Tracker Microphones

    VOICETRACKER 101 VOICETRACKER 201 Comments
    Price $228.95 $329.95
    USB Output No Yes VoiceTracker 101 has an optional USB adapter (Acoustic Magic 102)
    Analog Output Mic Level Mic or Line Level
    Power Requirements 6 VDC Plug USB Power VoiceTracker 201 has an optional wall power to USB converter/supply (Acoustic Magic 202)
    Acoustic Echo Cancellation No Yes For full duplex conferencing
    Mute Mode No Yes
    Scanning Range 360 degrees 360 degrees More sensitive from front 180 degrees
    Range for Meeting
    Recording or Voice Control
    ~30 ft ~20 ft Depends on room acoustics
    Qualitative Talker Location Yes Yes 5 LEDs
    Quantitative Talker Location No Yes Serial word, RS 232 thru DB 9 jack cable optional
    Dimensions 18" x 4.5" x 1.5" 11.5" x 1.5" x 1.25"
    # of Mic Elements 8 6
    Ceiling Mount Yes (built in) Yes VoiceTracker 201 has an attachable ceiling mount

    ACOUSTIC MAGIC VOICE TRACKER 201 FAQs

    Why is the analog audio from the Voice Tracker II on my Mac is so weak?
    Macs need line level audio input. The analog output of the Voice Trackers is mic level. Use the USB audio output with the Voice Tracker II. USB audio works fine with Macs.

    Where is the best place in a room to set up a Voice Tracker microphone?
    the Voice Tracker I and II are more sensitive from the front than from the rear and sides. If placed on a podium, with the objective of picking up the speaker and members of the audience, the Voice Tracker should be placed facing toward the audience. If placed on a conference table, the Voice Tracker should be placed near the front of the table pointing towards the far end. The Voice Tracker should be placed far from any source of background noise such as a fan or AC. Although Voice Trackers filter out such background noise, if too loud, voices will sound as if underwater.

    Can the Voice Tracker 201 be mounted on the ceiling?
    Yes. The Voice Tracker 201 comes with a mounting plate. You simply need to remove the weight in the base and mount the mounting plate to the screw holes.

    What setting (line or mic) should I set the switch to on the back of the Voice Tracker II?
    Almost all of the sound quality issues with the Voice Tracker II relate to the setting of the switch in the back. There are two positions of the switch: "mic" level and "line" level. For automatic speech recognition applications the switch should be in the "mic" position. This keeps the audio output low in order to avoid clipping, which ruins speech recognition accuracy.
    For conferencing and meeting recording applications, the switch should be in the "line" position. This is not true line level, but it is 10 DB stronger than the "mic" position. This switch position is necessary to give the Voice Tracker II good pickup range.
    When changing switch positions, it is necessary to repower the Voice Tracker to reboot the software.

    If you still have a question regarding the ACOUSTIC MAGIC VOICE TRACKER 201, click here to submit your question to Go Electronic customer service and we will get back to you with a response.

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