Cell phones aren't the only gadgets in the car anymore. MP3 players, satellite radio, personal digital assistants, DVD players and mapping tools are quickly becoming common accoutrements of the modern car. And that means drivers have more buttons, keypads and click-wheels to twiddle with while navigating the road.
Obvious safety concerns and legislation in various states are forcing car makers to look for --and one may be on the way with new technology that lets people keep their hands on the wheel and "tell" their gadgets what to do with voice controls.
"There's fairly significant demand for 'button intensive' features in the car (like) dual climate zones and satellite radio," which has more than 120 channels, said Jim Pisz, national manager for partnerships at Toyota. "The future for us is in the ability to control all of these features by voice."
Of course, it may be a few years before mass-production vehicles synchronize electronic devices for, but momentum is building for features that let people ask for driving directions or call a friend without using their hands.
Last week, for example, Toyota partnered with a relatively unknown voice-search specialist, called VoiceBox, in Bellevue, Wash. In development for roughly three years, VoiceBox's technology differs from established voice tech on the market because it allows people to speak conversationally to operate car electronics, rather than having them memorize and deliberately sound out commands.
The two companies are developing natural-speech technologies for Toyota's cars, but Pisz would only say that they'll become more common in cars within the next few years. "We're evaluating it at the highest levels," he said.
VoiceBox recently signed a major deal with XM Satellite Radio to add voice-search capability to its channel-rich service, which is available to more than 6 million people in the United States, many of whom listen in the car.
VoiceBox has also teamed with Johnson Controls, one of the biggest technology suppliers to the auto industry. One early product of their deal is a node that lets people search music on Apple Computer's iPod by voice in the car. The product is expected to be available this year.
"Wherever you have a large menu of files to choose from--song files, phone contacts, local directories--voice technology is inevitable," said Veerender Kaul, research manager for advanced auto technology at Frost & Sullivan, a research firm.
"The main problem is that most of the voice-based engines haven't been very reliable in the past," said Thilo Koslowski, vice president and lead auto analyst at market research firm Gartner.
VoiceBox's engineers think they can change that. It was founded in 2001 by Bob Kennewick, a Harvard University associate professor with degrees in economics and computer science. He recognized a fundamental problem with existing voice recognition, which required programmers to set up specific dictionaries for a given set of data, and then match speech to text. But users had to say the right words to make it work. Background noises could also muddle the translation.
His vision was to develop technology that could recognize the context of speech, picking up the right cues in a conversation to answer like a human would. For example, a request like: "Let me hear Cisco" could translate to the technology as a request to hear the singer Sisco, get a stock quote on the company Cisco Systems, or listen to the Johnny Cash song, "Cisco Spilling Station." The technology, which Kennewick developed, answers such a request by asking which of these options the person would like to hear.
In some contexts, the technology wouldn't need to provide options. A request for a stock quote on Microsoft followed by the name Cisco would immediately prompt another quote, for example. The VoiceBox technology would learn from experience by recognizing repeated requests for information and responding to personal preferences.
"It looks for clues in what you're saying and what you've said before to infer what you want, just like a human would," said Mike Kennewick, the founder's brother and current CEO of VoiceBox.
Mike Kennewick was a Microsoft business development executive for Windows in the 1980s. The brothers teamed up with two friends to found the company in 2001. It now employs more than 40 speech-recognition engineers.
According to Toyota and industry analysts, VoiceBox is one of only a handful of companies working on conversational voice-search technology.
OnStar, the telematics company inside General Motors, has long been an advocate of voice recognition in cars. Coming up on its 10th anniversary, OnStar has 4 million subscribers and its hardware is set to become standard equipment in GM cars by 2008. With the system, drivers push a button and talk to consultants to report an accident or unlock a door. (The company does about 1,000 airbag calls a month.) People also can make cellular calls from a built-in voice-activated mobile phone if they sign up with a program.