Digital Voice Systems, Inc.
AMBE-3000™ Vocoder Chips
High Quality Performance
•
DVSI’s latest generation AMBE+2™ Vocoder Technology
•
Excellent voice quality - even at low data rates and in
harsh background noise environments
•
Reliable channel communications with Noise
Suppression, Improved Error Mitigation, and Soft
Decision FEC Decoding
Design Flexibility/Low Cost Integration
•
Complete integrated vocoder in one chip
•
Maximizes channel bandwidth efficiency supports data-
rates from 2.0 kbps to 9.6 kbps
•
Works with most low-cost A/D-D/A codecs
•
Selectable Serial or Parallel interfaces
•
Order as needed - no licensing fees or royalties
•
Off-the-shelf availability for quick delivery
Optimized for Digital Mobile Radio Systems
•
Excellent performance at low data rates and harsh
environments
•
Robustness to acoustic background noise and channel
bit errors
•
Small compact package design (128 pin LQFP or BGA )
•
Compatible with DMR Program (ETSI TS102)
Interoperable
with DVSI’s
AMBE-2000™
Vocoder
chips.
Digital Voice Systems, Inc. USA
www.dvsinc.com
The AMBE-3000™ Vocoder Chip offers the affordability,
channel efficiency and low power consumption required
by virtually all mobile communication devices.
Digital Voice System’s AMBE-3000™ Vocoder Chip is an extremely
flexible, voice compression solution that sets a new standard for quality,
high-performance speech compression hardware. The AMBE-3000™
Vocoder Chip is a DSP based vocoder that provides exceptional voice
quality at rates as low as 2000 bps. The AMBE-3000™ Vocoder Chip
offers the affordability and mobility and required by virtually all full or
half-duplex mobile communication devices. Its superior performance
and flexible design configurations makes it an ideal choice for
commercial, consumer and military communication applications.
The AMBE-3000™ Vocoder Chip implements DVSI’s patented
AMBE+2™ Voice Compression Algorithm. The AMBE-3000™
Vocoder Chip can operate at virtually any data rate from 2.0 to 9.6
kbps. This allows designers to optimize speech and/or FEC rates within
their system requirements to provide excellent voice quality with superior
robustness to bit errors and acoustic background noise. The success of
this vocoder technology has resulted in it being chosen by many mobile
radio manufacturers including APCO Project 25 in North America and
DMR in Europe. In addition, satellite
systems prefer this unique technology
because of its superior voice quality at
low bit rates.
By incorporating this advanced vocoder
technology, into proven DSP technology
the AMBE-3000™ vocoder chip
achieves a level of performance and
reliability typically associated only with
customized ASICs but without the
associated risks and high development costs. With small quantity, off-
the-shelf availability and no licensing fees or royalties, engineers and
original equipment manufacturers are able to efficiently design and
affordably produce high performance, narrowband, communication
equipment.
To allow for easy integration, basic communication to/from the AMBE-
3000™ Vocoder chip is designed to be as flexible as possible. The
AMBE-3000™ offers users four separate physical interfaces: SPI
(speech data samples interface only), McBSP serial port, UART, and a
parallel port. Selecting the interface that best fits system requirements
is made easy with only two operating modes.
