SpeechWorks™from Applied Language Technologies, Inc.
- Description: SpeechWorks and companion products provide
advanced speech recognition technology for the telephony market.
SpeechWorks can be used by developers to "speech-enable" call center,
messaging, enhanced services, and other types of applications.
The three major system modules - SpeechWorks, DialogModules and
SpeechBuilder - are described below. More detailed information is
available from the
Applied Language Technologies home page.
ALTech develops and markets speech understanding software which
provides large vocabulary, speaker-independent, phonetic speech
recognition. ALTech's software contains a comprehensive set of features
for speech-enabling telephone-based transactions and services.
SpeechWorks is based on technology licensed from the
Spoken Language Systems Group
Massachusetts Institute of Technology.
provides the core speech recognition capabilities. Features include:
- Phonetic segment-based, speaker-independent, large vocabulary,
continuous speech recognition
- Real-time vocabulary generation directly from text
- Database integration
- "Barge-in" capability
- Adaptive channel normalization
- "n-best" output and associated confidence scores
- Support for multiple languages
- Software-only or DSP-based implementations
- Support for multiple platforms and operating systems
(e.g., SCO UNIX, WindowsNT, etc.)
manage the "conversation" between the system and the caller within
They provide high-level application building blocks which enable
developers to quickly and easily add speech interfaces to computer
telephony applications. Each DialogModule accomplishes a particular
task within an application, ranging from "simple" tasks such as
capturing a yes/no response or a phone number,
to more complex tasks such as capturing credit card information or
name and address information.
DialogModules provide "out-of-the-box" functionality.
They contain pre-built grammars, user-interface design, internal call
flow and error recovery routines, parameters for customization
and a set of C++ class libraries and C APIs.
provides tools for customizing the DialogModules and for
developing and maintaining applications. A GUI-based Vocabulary Editor
provides the ability to generate and maintain vocabulary or word lists.
Pronunciations can be generated automatically using the built-in
dictionary or can be automatically generated using a set of
- Product Bundles: are available which combine SpeechWorks
and multiple DialogModules into application templates for a set of
generic application categories.
SpeechForms provides an interactive method for entering data
over the phone, such as ordering products, filling out surveys
and completing registration forms. Typical applications include:
order entry, reservations, catalog and literature requests,
catalog shopping, subscriptions, change of service, claims,
credit card activation, home banking, stock transactions,
and warranty reservations.
SpeechQuery is used to deliver information in response to
voice requests over the phone, such as airline information,
product delivery status and retirement benefit information.
Typical applications include: order status, product information,
account balance, flight status, movie listings, job
listings, stock quotes, guide services,classified ads,
claims status, dealer locator services, and technical support.
SpeechAgent provides a set of modules for automating
telephone-based voice messaging applications, such as
integrated messaging, single-number services and voice-dialing.
Typical applications include: voice messaging, voice dialing,
auto attendant, address book access, email access, and scheduling.
Platforms and Operating systems: ALTech's software can be
deployed on industry-standard hardware platforms and operating
systems including: Sun SPARC-based systems running SunOS or Solaris,
IBM RS/6000s running AIX, HP systems running HP-UX, and
486/Pentium-based PCs and servers running Windows, WindowsNT,
SCO UNIX, or Solaris. ALTech's systems are designed to run all
or some of the software on a digital signal processor.
- Availability: contact ALTech for licensing information.
- Contact: Applied Language Technologies, Inc.
215 First Street, Cambridge, MA 02142
Ph: 617-225-0012, Fax: 617-225-0322
Email: to Alisa Moyer:
Section 6 of the
comp.speech FAQ Home Page.
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Last Revision: 14:16 25-Sep-1996