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As a result, the market for speech-enabled applications is expected to grow rapidly. Voice Information Associates, a US market research company estimated that the market for advanced speech technology would mushroom from Dollars 460m in 1997, to Dollars 5bn in 2001 and Dollars 7.9bn in 2003. Meanwhile, translation services, another rapidly growing segment of the overall language products market, is projected to grow from Dollars 3bn in 1997, to Dollars 5.2bn in 2001 and Dollars 6.9bn in 2003.
These growth forecasts are also reflected in the increasing number of businesses using voice technology to enhance their product offering or services. Speech applications are on the market or in development in areas as diverse as travel, financial services, telephony, law, education, medicine, government, manufacturing and small businesses.
Speech-enabled applications can, for example, help reduce the training costs of rapidly changing software products by providing a more intuitive user interface, allowing users to substitute complex drop-down menu commands with simple spoken commands. Customer service departments can also replace thousands of operators to provide customers with automated access to information and services.
Speech provides many categories of users with increased mobility. Accountants can dictate and enter data without having to have their hands on a keyboard. Mobile users can dictate notes into a handheld recorder, keeping their hands free for driving; the notes are transferred later to the desktop computer and automatically converted to text. Dragon Systems has developed a mobile version of its software called Naturally Mobile which includes a digital handheld recorder using flash memory cards.
Speech recognition or speech-to-text captures human speech and translates it to a written format. In command and control applications, the captured speech commands can be used to trigger an action such as launching an application or dialling a phone. In dictation applications, the captured speech data can be transcribed and stored as a text file, edited by the user and used like any other file.
Speech can also reduce the risk of repetitive strain injuries, allowing employees to spend more time at work, and speech-enabled applications can eliminate the constraints of the telephone key-pad and allow easier-to-use-automated systems to provide a more economical service. A speech-enabled application can replace frustrating "Press 1 for choice X" instructions with simpler options, such as: "Say the name of the person or department you'd like to reach."
Meanwhile, the internet and electronic business are encouraging companies to globalise their service or product offerings. Speech-enabled applications can provide language translation services, guide users through online help menus, and simplify data entry when numerous forms must be filled out. Speech can also be used as an alternative to complex Asian keyboards or phonetic spelling.
In the telephony market, speech technology offers mobile users continuous access to database records, voice mail, e-mail and information through the telephone. Products like Wildfire's Personal Assistant and Registry Magic's automated attendant allow remote access to voice messaging systems and call management by spoken commands.
Speech also provides customers with 24-hour access to help agents and reduce hold times, while making significant savings in labour costs for service providers. Nuance's Voicebroker, developed for Charles Schwab, allows brokers to perform stock transactions through an artificial agent. AlTech's Travel Reservations System allows employees of United Airlines to check flight times and make reservations.
Companies deploying such systems report major cost savings. An automated
voice attendant is reportedly saving AT&T Network Systems Dollars 300m annually in labour costs while, according to Nuance Communications, automated phone transfer has allowed Sears to reassign almost 3,000 human operators. As Intel notes, automated attendants can be particularly beneficial to small businesses, as they allow these companies to provide higher levels of service with fewer employees.
Speech technology is still evolving, with improvements in areas such as accuracy, vocabulary size, recognition speed and natural language processing. Even so, speech technology has already become a viable technology, offering an exciting way for developers to add value to their software and expand into new arenas.
"As the speech and language industries continue their maturation, vendors must meet the needs of the mass market by making the technologies simpler to use and more accessible," says Jo Lernout, L&H's co-founder and co-chairman.
Copyright © The Financial Times Limited
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