Acoustic Magic Voice Tracker I Instrucciones - Página 2

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environment. In general, we recommend LDS off and

the narrow field of view for speech recognition

applications.

Using a narrow field of view and LDS

useful when teleconferencing. If the incoming talker's

speech is played through loudspeakers positioned

outside the +/- 45 degree listening area, the array will

turn off when only the far-end talker is active, thereby

minimizing echo in the channel.

Position Lights

The green position lights provide feedback on the

operation of the array. They indicate where the array's

listening beam is pointing. When the array recognizes a

relevant sound, one of the 5 lights will be illuminated.

The individual lights correspond to the range of potential

sound source locations.

directly in front of the array, 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. In the narrow scanning

range mode, only three lights are active. When there is

no active talker, the lights may flicker as the Voice

Tracker

searches for a talker.

When the LDS is on, the indicator light will be illuminated

only when there is sound activity within the designated

listening area. With the LDS off, a light will remain on

continuously through both speech and silence periods.

In the event that no lights are on and the LDS mode is

off, it is possible that the array is not plugged in or is

working improperly.

Using the Voice Tracker for Speech Recognition

Since the Voice Tracker

types of microphones or audio input devices, you should

retrain your speech recognition system after connecting

the array and adjusting the soundcard gain level. This

will allow you to more effectively utilize the improved

sound quality produced by the Voice Tracker

improve the overall performance of your speech

recognition software. Be sure to select mic in during the

"New User" setup. Personalized vocabulary can usually

be transferred to the retrained "User".

Adjusting Your Soundcard

On your Windows PC:

1. Go

Start

button,

Multimedia (or Entertainment), then volume control.

2. Make sure the Mic In's mute is checked.

3. Go to Options, then Properties, select the circle next

to Recording.

4. In the 'Show Volume Controls' region check the box

next to Mic In and then click OK.

can also be

For example, if a talker is

operates differently from other

Programs,

Accessories,

5. Check the Select box under Mic In and set its

volume to an appropriate level for your soundcard.

Be careful not to set this volume level too high. This

will cause clipping.

6. Exit recording control.

Trouble shooting:

FCC & CE Mark 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 as well as the CE Mark 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.

Changes or modifications not expressly approved by

Acoustic Magic could void the user's authority to operate

the equipment.

This digital apparatus does not exceed the Class A limits

for radio noise emissions from digital apparatus as set

out in the Radio Interference Regulations of the

Canadian Department of Communications.

you

[email protected]

Or call 978 440 9384.

and will

Audio cuts out: Be sure LDS switch is in off

position

No audio. Check whether green lights track the

talker. If so, the problem is probably in the

computer. Make sure it is looking for recording

input where the Voice Tracker is connected (mic

in or USB)

have

further

questions,

ACOUSTIC MAGIC, INC.

35 Peakham Road

Sudbury, MA 01776

www.ACOUSTICMAGIC.com

e-mail