Delivers Highest-Quality Available
at 2.0 - 9.6 kbps
Mass - Digital Voice Systems, Inc. (DVSI) has introduced a new low
data rate AMBE+2TM
Vocoder that sets a new standard for high-quality, high-performance
speech quality at data rates from 2.0 to 9.6 kbps.
new vocoder technology has been shown to outperform DVSI's
previously industry-leading AMBE+TM
Vocoder, that outperformed G.729 and G.726 vocoders while operating
at only 4.0 kbps, and DVSI's baseline AMBETM
vocoder technolgy. It is designed to be particularly robust and
perform exceptionally well even under bit errors and acoustic
background noise conditions.
independent evaluations have proved that the model-based, Multi-Band
Excitation algorithm provides distinct advantages over traditional
CELP-based vocoders. Operating at data rates from 2.0 to 9.6 kbps,
the new AMBE+2™ algorithm has achieved higher Mean Opinion Scores (MOS) than any
other vocoder technology tested.
knew the modifications to the algorithm showed promise in our lab
but the independent test results provide the proof," states Dr.
John Hardwick, President of DVSI. He adds, "DVSI has again raised
the bar on performance expectations for low rate vocoders for the
superior performance characteristics of the new AMBE+2™
Vocoder make it ideally suited for mobile radio, secure voice,
satellite communications, computer telephony, and other digital
voice and storage applications where bandwidth is at a premium and
low data rate, high-quality is imperative.
Vocoder clearly illustrates why DVSI has been selected for many
prominent global mobile satellite systems including: Inmarsat M and
Mini-M, Iridium, ICO-Global, Thuraya, ACeS, and many others. DVSI
was also chosen as the vocoder standard for the North American, APCO
Project 25 public safety mobile radio system.
Voice Systems, Inc. specializes in low rate, high-quality voice
compression products for use in digital communications and storage
applications. Their products include vocoders, error correction
schemes, test sets, and other offerings. DVSI is a leading provider
of hardware and software voice coding solutions to equipment
manufacturers and OEMs throughout the world.
AMBE™ is a registered trademark of Digital Voice Systems, Inc.