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Voice Verification: A Logical Complement To
Speech Recognition
Have you ever called a customer service phone number and been prompted
to speak your query? Say, for instance, you call an airline and ask for
domestic flight information. Oftentimes, the automated reply is, "I'm
sorry, I did not understand your response. Please repeat your query."
Repeat this enough times and it can be downright frustrating, to the point
where you're punching the zero key on your phone dial pad, angrily trying
to reach a live person.
Granted, this isn't always the case, and speech recognition
technologies work well enough to connect your call and get you the
information you're seeking -- most of the time. Perceptions of this
technology are changing as accuracy has improved, and companies are
discovering it can be used in tandem with other voice technologies.
There's certainly no doubt that speech recognition can improve our lives
in numerous ways, and I'm confident that once this technology matures a
bit more, it will gain widespread popularity. Cahners
In-Stat Group has predicted sales of speech recognition engines will
reach $2.7 billion by 2005, and their use has already become mainstream in
interactive voice response (IVR) systems. I'm optimistic that some day
soon, this technology will be used for everything from booking an airline
flight to transferring money between your bank accounts, and that brings
me to another logical, but different use of the technology: Voice
verification.
THE SECURITY BOOST
Security is an important issue for most aspects of life, and the
prevalence of online transactions, as well as last September's events,
have certainly boosted our need to look for improved approaches to
securing our property and transactions. Increasingly, customers want added
assurances that their personal information is being properly safeguarded.
Let's say, for example, that I want to transfer money from my checking
account into my savings account (we can all dream, right?). I call my
bank's toll-free customer service number, and key in or speak my account
number to gain access to my account information. I am also required to
enter the last six digits of my social security number. Right now, that is
all the information required to access my accounts. But some day soon, as
I'm speaking my account number, my voice will be compared to a
pre-recorded voiceprint contained in the bank's database, and the result
will be used to positively identify me as the accountholder. That is the
beauty of voice verification, which is gaining prominence for
authentication and access to all sorts of information.
Voice verification is an example of a biometric technology, a growing
market in which physical characteristics are used to identify a person.
Fingerprint and facial scans are also among the most popular biometric
technologies, as are iris and retina scans. But voice verification is a
logical fit in many situations, since we already use voice technology for
a number of applications that are just begging for an additional layer of
security. Speech-recognition developers Nuance,
SpeechWorks, and InterVoice-Brite
also see the opportunities for this type of technology, and each company
offers voice authentication/verification products.
The Nuance Verifier 3.0 uses voiceprints of an individual's name, phone
number, social security number, account number, or PIN to authenticate
that person using the company's "It's Me" technology. The
technology has been tightly integrated with the Nuance's speech
recognition software, and supports a number of languages.
The SpeechSecure product from SpeechWorks uses voice verification
technology from T-Netix SpeakEZ and Veritel
in a solution for over-the-phone and e-commerce applications, targeted at
service providers, and the health and finance industries. The SpeechWorks
DialogModules integrate biometric verification capabilities with
SpeechWorks speech recognition solutions. SpeechAccess Speaker
Verification is part of InterVoice-Brite's suite of speech technology
solutions, aimed at the financial, healthcare, travel, and insurance
industries, as well as human resources departments.
Other leading vendors in the voice verification space include VeriVoice,
which uses the patented VeriVoice Security Lock software, featuring
implementations for recording voice via a microphone or telephone. The
Voicevault engine from Buytel offers
verification via the phone, Internet, or the Web, geared toward the
telecom, x-commerce, financial services, and public services markets. OTG
(the Ottawa Telephony Group) offers the SecurPBX identification solution
specifically for preventing telecommunications fraud via long-distance
trunk, voice-mail access logs, IVR systems and audio response units, call
centers and transaction agents, modem pools, conference bridging, and
maintenance and e-mail ports. The solution uses the SpeakEZ Voice Print
technology to eliminate access to unauthorized callers.
Additional players in this space include Persay,
a subsidiary of Comverse Technology offering the Orpheus 2.0 Speaker
Verification Platform. The VoiceCheck technology from Veritel
is language independent, and is suitable for small applications as well as
large-scale implementations. Vocent
offers the Voice Secure suite of authentication products tailored for
resetting passwords, medical privacy, and controlled airport access.
TMC's NEWEST MAGAZINE, NEWSLETTER
My interest in voice verification technology is not
coincidental. I'm in the process of launching an online magazine and
e-mail newsletter called BiometriTech,
which will debut this month and cover all aspects of the biometrics market. Voice verification
is a logical extension of TMC's existing coverage of the
telecommunications market and speech recognition technologies, and as I
mentioned earlier, it lends itself to a number of applications with
existing speech rec products, as well as new security products.
Of course, there are many more types of biometric technologies to
explore, and I'll reserve those discussions for the new magazine. In the
meantime, visit our Web site -- www.biometritech.com
-- to sign up for the newsletter for updates and information on voice
verification and other biometric technologies.
Laura Guevin welcomes your comments at lguevin@tmcnet.com.
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