Acoustic Magic Voice Tracker II Talimatlar - Sayfa 2

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the middle light will be illuminated. If the talker is to one

side, a light on that side will turn on. If the talker moves

across the field of view of the array, the lights will track

the talker's motion. When two users are sharing the

array, the light will indicate the direction of the active

talker. When there is no active talker, the LEDs will be

off.

Controls

The Voice Tracker II has a pushbutton mute switch.

Press the button once to put the Voice Tracker II into

mute

mode.

The

(continuously), indicating that the microphone is in mute

mode. Press the button again to return to microphone to

listening mode (the LEDs will indicate the active talker).

Figure 5 – Mute Button and Connectors

Positioning

The Voice Tracker II scanning listening beam can pick

up sound from a full 360° field of view. However, the

Voice Tracker II is more sensitive to sound in front than

from the sides or from behind.

For use with a PC (speech recognition or VoIP

telephony/conferencing) the Voice Tracker II can be

placed under or next to the display.

In a conferencing application, it is best to place the Voice

Tracker II on one end of the table with its front pointing

towards the far end.

Voice Tracker II can also be mounted (with an optional

bracket) on walls or on the ceiling to reduce clutter.

Talker location signal

Since the Voice Tracker automatically points a "listening

beam" at the loudest talker, it knows the location. This

signal is made available as a digital word through the

DB9 connector (cable is optional).

five

green

LEDs

will

The RS 232 serial output signal consists of 8 bit words,

no parity, 1 stop bit; commonly referred to as 8,N,1.

2400 baud.

Data is between 0 and 250, corresponding to talkers

from the far left in front of the Voice Tracker (0) to the far

right (250). If the talker is directly in front of the Voice

Tracker, the data will read 125.

Note that the Voice Tracker picks up sound from the

behind. So a reading of 125 could mean the talker is

directly in front or directly behind the Voice Tracker.

When the Voice Tracker detects no talker, the location

blink

signal reads 255.

The user will have to create application SW to calibrate

these signals into degrees.

Trouble Shooting:

USB connection is not recognized.

PCs and MACs should recognize the Voice Tracker

automatically. If not, it is probably a cable problem. USB

extension cables often interfere with recognition. For

long separations between the computer and the mic, we

suggest using the analog output (and a USB adapter if

connecting to a MAC).

No Audio

Check whether the LEDs track the talker. If not, reboot

(repower). If so, the problem is probably in the computer

setup. Make sure it is defaulting for recording input

where the Voice Tracker is connected (USB, or

soundcard).

Analog or USB Audio too weak.

In the computer's recording control, select properties

then levels and increase the gain/boost to increase the

audio level.

FCC Compliance

This equipment has been tested and found to comply the

limits for a Class A digital device, pursuant to part 15 of

the FCC rules. These limits are designed to provide

reasonable protection against interference when the

equipment is operated in a commercial environment.

This unit generates, uses and can radiate radio

frequency energy, and if not installed and used in

accordance with the instruction manual, may cause

harmful interference with radio communications.

35 Peakham Road

Sudbury, MA 01776