ClearOne VE402061 Users Manual

Assistive Listening Systems
Venture-Express Transmitter
User’s Guide
Page ii Venture-Express User’s Guide
Copyright Information
© Copyright 1998 by Gentner Communications Corporation. All rights reserved. No part of this manual may be reproduced in any form or by any means without written permission from Gentner Communications Corporation. Printed in the United States of America. Original version, 1/96. Gentner Communications Corporation reserves specification privileges. Information in this manual is subject to change without notice.
Venture-Express User’s Guide, September 1998
Introduction 1
Contents
Features and Controls 1 Audio Processing 1 Controls 3 Setup 3 Antenna/Microphone 4 Install Batteries 5 Select Audio Input 6 Operation 6 Powering the Venture-Express 6 Selecting a Channel 6 Setting Memory Channels 6 Frequency Chart 7 Check the System 8 Using the Mix Function 8 Low-Battery Indication 8 Interference Problems 8 Specifications 9 Notice 10 W arranty 12
For Technical Assistance Dial: 800-283-5936 or 801-974-3760
Venture-Express User’s Guide Page 1
Introduction
The Venture-Express portable transmitter results from years of surveying audiologists, sound contractors, consultants and end users. It is designed to provide every feature and function with the highest possible audio/RF performance and reliable operation while remaining affordable and easy to use.
The Venture-Express has audio inputs for both microphone and line (i.e. tape or CD player). The two sources can also be mixed. An audio processor shapes the input audio dynamics and frequency response to produce a signal with maximum intelligibility and minimal operator adjustment.
The RF section is crystal-controlled for stability. Its digital frequency-synthesizer circuitry sets the transmitter to 19 of the FCC-approved Assistive Listening Band’s channels. Six memory channels can recall frequent-use channels.
Features and Controls
Audio Processing
To make transmitted sound intelligible to the hearing impaired, making it louder is not enough. The needs of the hearing impaired differ greatly from those with normal hearing. The most common impairments are reduced sensitivity and dynamic
For Technical Assistance Dial: 800-283-5936 or 801-974-3760
Page 2 Venture-Express User’s Guide
range, and loss of high frequencies.
The Venture-Express uses a system of program-dependent AGC with a proprietary frequency-shaping system to control dynamics and maximize voice intelligibility. This results in a clear, loud sound, and eliminates the need to constantly raise and lower receiver volume.
Figure 1. Venture-Express front panel
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Venture-Express User’s Guide Page 3
Controls
Power: Turns on/off the power to the V enture-Express transmitter Channel Select: Allow the user to scroll up or down through the 19 preprogrammed channels Memory Recall Buttons: May be programmed to any of the 19 channels for instant recall Display: LCD display shows the channel the V enture-Express is currently using. If tuned manually , the channel will be prefixed by a C (example: C-07). If tuned using a memorized channel, the channel will be prefixed by the memory-button number (example: 4-07). Input Selector: Allows the user to broadcast the audio input from a microphone, a line source or a mix of both Line Input Jack: A standard 1/8-inch/3.5mm jack for an outside audio source (i.e. tape or CD player)
Mic Mute Switch: Allows the user to mute the mic audio input, not the auxiliary audio input Mic Input Jack: A mini XLR-type professional connector with
a locking action to prevent the mic plug from being
Figure 2. V enture-Express top view
For Technical Assistance Dial: 800-283-5936 or 801-974-3760
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