User`s manual

USB-3000™
User’s Manual Version 1.6a
Section 1 –
Introduction
Digital Voice Systems, Inc.
The Speech Compression Specialists
1.3. What’s Included with the USB-3000™
The USB-3000™ is a complete hardware package. The device comes with a CD that contains documentation
and operation software. Documentation includes a USB-3000™ User's manual and an AMBE-3000™ Users
Manual. The software on the CD is an executable program that can be run to encode or decode files. The
source code for the program is provided so that users can use it as an example to create their own programs.
The CD also contains sample speech and compressed speech files as described in Section 2.
1.4. Product Description
The USB-3000™ is ideal for encoding and decoding speech using a PC platform. Simply connect the USB-
3000™ to a Windows based PC’s USB interface and begin to configure vocoder rate and options then encode
and decode files or process real time speech. The USB-3000™ can play a key role in the development of
communication systems, including push-to-talk land mobile radio, satellite and wireless telephony. The USB-
3000™ can be used to create multi-channel systems by connecting more than one USB-3000™ to a single PC.
The USB-3000™ is available in six models allowing it to meet a variety of system requirements.
Model Number Description
AMBE-
3000™
Vocoder
Chip Rates
APCO
Project 25
Rates
TerreStar/
GlobalStar
Rates
USB-3000™ Standard Yes No No
USB-3000™-OEM Standard – OEM Version Yes No No
USB-3000™ P25 APCO P25 Yes Yes No
USB-3000™ P25 -OEM APCO P25 OEM Version Yes Yes No
USB-3000™ SAT TerreStar / GlobalStar Yes No Yes
USB-3000™ SAT -OEM TerreStar / GlobalStar OEM Version Yes No Yes
1.4.1. USB-3000™ Standard
The USB-3000™ is configured to use DVSIs standard USB driver (included on a CD-ROM). These drivers will
work with Windows XP and Windows Vista only. Refer to section 2.4 USB-3000™ USB Driver Description for
more details.
1.4.2. USB-3000™ Standard – OEM Version
The standard OEM version of the USB-3000™ is configured to use the generic USB drivers offered by Future
Technology Devices International Ltd. (FTDI). FTDI has USB drivers (refer to section 2.4 USB-3000™ USB
Driv
er Description for more details) for several operating systems. Please visit the FTDI website at
http://www.ftdichip.com/FTDrivers.htm
for more information.
1.4.3. USB-3000™ P25
The USB-3000™ P25 includes DVSI’s patented Enhanced Dual-Rate Vocoder technology that is fully
interoperable with APCO Project 25 standard (TIA-102BABA). The USB-3000™ P25 provides quick and easy
access to the APCO Project 25 Phase 1, 7200 bps “full-rate” vocoder plus the second-generation Phase 2,
3600 bps “half-rate” vocoder. Both vocoder rates can be set to run with or without Forward Error Correction. In
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