Navigation Links
Research aims to improve speech recognition software
Date:8/11/2010

BINGHAMTON, NY Anyone who has used an automated airline reservation system has experienced the promise and the frustration inherent in today's automatic speech recognition technology. When it works, the computer "understands" that you want to book a flight to Austin rather than Boston, for example. Research conducted by Binghamton University's Stephen Zahorian aims to improve the accuracy of such programs.

Zahorian, a professor of electrical and computer engineering, recently received a grant of nearly half a million dollars from the Air Force Office of Scientific Research. The funds will support the two-year development of a multi-language, multi-speaker audio database that will be available for spoken-language processing research. Zahorian and his team plan to gather and annotate recordings of several hundred speakers each in English, Spanish and Mandarin Chinese.

"The challenge," he said, "is to get speech recognition working better in real-life situations."

That's why the samples in the new database will come from publicly available sources such as YouTube.

Zahorian's team will annotate each sample, creating a more detailed version of closed captioning, including time stamps and descriptions of background sounds. Once the human listener has finished with the transcription, automatic speech recognition algorithms will be used to align the recording with the captions. Next, software will be developed to verify and correct errors in the time alignment.

"Speech-recognition algorithms begin by mimicking what your ear does," Zahorian said. "But we want the algorithms to extract just the most useful characteristics of the speech, not all of the possible data. That's because more detail can actually hurt performance, past a certain point."

The field of automatic speech recognition has a long history, dating back to projects at Bell Labs before the computer age. These days, much of the technology relies on algorithms that convert sounds into numbers.

In Zahorian's research, he represents speech as a picture in a time-frequency plane. He then uses image-processing techniques to extract features of the speech, which has led him to focus more on time than on frequency.

When researchers are ready to test an algorithm, they rely on a common set of databases held by the Linguistic Data Consortium. Zahorian's unusual image-based approach has given his team some of the best results ever reported for automatic speech recognition experiments using two of the consortium's best-known databases.

The database Zahorian develops with the new funding will join these others, offering researchers around the world a new way to test their theories with samples of real-life speech.

Some mistakes are inevitable, given the variations in pitch, tone and pronunciation from person to person.

Still, the field does have a clear standard, Zahorian said: "In order to be useful, a system should have a word-error rate of no more than 10 percent."

Zahorian is interested in language modeling if someone has said these three words, what's the fourth word likely to be? as well as conversation modeling that is, predicting when the speakers will switch. He's also intrigued by the potential to make advances by using established methods from other fields, including the neural networks developed by researchers working in artificial intelligence.

He sees a future in which automatic speech recognition will enable technology to extract the meaning of speech as well as the words.

"The dream," Zahorian said, "is that someday travelers will be able to speak into a little gadget that will translate what they've said into another language instantly and accurately."


'/>"/>

Contact: Gail Glover
gglover@binghamton.edu
607-777-2174
Binghamton University
Source:Eurekalert  

Related medicine news :

1. Embedded Mobile & M2M Device revenues to Rise to Almost $19 Billion Globally by 2014, Says Juniper Research
2. 2010 HSR Impact Award recognizes surgical safety research
3. MSU launches first anti-counterfeiting research program
4. Researchers map all the fragile sites of the yeast Saccharomyces cerevisiaes genome
5. UH Case Medical Center researchers publish promising findings for advanced cervical cancer
6. Researchers discover new way to kill pediatric brain tumors
7. Family Research Council: Planned Parenthood Report Oversexualizes Ten-Year-Olds, Undermines Parental Authority
8. Michael J. Fox Foundation Awards $1 Million to Drive Critical New Research Tools and Technologies in Parkinsons Drug Development
9. Luth Researchs IndicatorEDG(TM) Study Finds Americans Hopes of Achieving Their Dreams Are Fading
10. International Diabetes Federation awards $2 million to 9 global diabetes research projects
11. Gladstones Robert Mahley to receive Research!America advocacy award
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Research aims to improve speech recognition software
(Date:2/11/2016)... CA (PRWEB) , ... February 11, 2016 , ... ... was held in San Diego, CA, on February 6th & 7th, 2016 according to ... for those who were not invited to the NFL’s combine in Indianapolis,” says Husted. ...
(Date:2/11/2016)... Ore. (PRWEB) , ... February 11, 2016 , ... ... Medicaid coverage results in significantly higher rates of several common cancer screenings, especially ... resulting in better outcomes and survival rates. , The study,“What Does Medicaid ...
(Date:2/10/2016)... (PRWEB) , ... February 10, 2016 , ... ... (WMIS), known as the World Molecular Imaging Congress (WMIC), will be held in ... the 2016 meeting is “Imaging Biology…Improving Therapy.” The congress will highlight and emphasize ...
(Date:2/10/2016)... ... 10, 2016 , ... LaserShip, a regional parcel carrier that services the eastern ... Michigan last Friday in order to aid in the Flint water crisis. In 2014, ... facility located in Clio, only 15 miles away from Flint. , “We have deep ...
(Date:2/10/2016)... ... February 10, 2016 , ... ... its revolutionary new 2.0 version at the International Roofing Expo in Orlando, Florida ... of the world's most advanced weather technology in the hands of consumers, roofing ...
Breaking Medicine News(10 mins):
(Date:2/10/2016)... OR AKIVA, Israel , February 10, ... Ltd., a leader in the field of cartilage repair, ... on February 5, 2016. The $15 million investment was ... leading Chinese pharmaceutical manufacturer, and was joined by existing ... Financial Holdings and both the Technion Research & Development ...
(Date:2/10/2016)... New York , February 10, 2016 ... Growth, Trends and Forecast 2015 - 2023 ", reveals that ... rather slow growth from 2015 to 2023 owing to patent ... a meager CAGR of 1.30% during the forecast period, the ... to US$38.9 bn in 2023. --> Antibacterial Drugs ...
(Date:2/10/2016)... 2016  Silicon Biosystems Menarini Inc., a developer ... uncover the biological complexities of disease at the ... of innovative technologies for genomics research, today announced ... enabling translational researchers to obtain high-quality sequencing results ... and normal cells in an optimized and seamless ...
Breaking Medicine Technology: