She Did the Math
Photo/Brian Morri
As the demand grows, so does the complexity of the software to generate, manipulate, process, store and retrieve digitally encoded music.
Operations research offers much to music computing researchers such as pianist/engineer Elaine Chew, a 2007-08 Radcliffe Institute Fellow and associate professor in the Daniel J. Epstein Department of Industrial and Systems Engineering and the Ming Hsieh Department of Electrical Engineering at USC.
In “Math & Music: The Perfect Match,” published in the June issue of OR/MS Today, Chew described the many advantages of an operations research approach to solving computational problems in music composition, analysis and performance.
Operations researchers use mathematics and computing tools to model complex problems in fields ranging from advertising to zoology in order to find optimal or feasible solutions. To model, study and assist humans in what they do in analyzing, composing and performing music is a natural next step, Chew said.
“The field of music and computing has experienced unprecedented growth in recent years, spurred on by the pervasiveness of computing and widespread access to digital music information,” Chew said. “Mathematical representations of music allow music knowledge to be encoded in computer-friendly terms, so that music computing researchers can design software to help us process and understand complex and vast amounts of music information.”
Chew cited two music technologies already on the market: Shazam and Pandora.
Shazam allows users to retrieve details of a music recording based on an audio example that is dialed-in over the phone. Pandora will suggest new songs based on the user’s current favorites. Interactive music games, in which a user might take on the persona of a rock star, are a perennial favorite.
Beyond the market-driven motivations for music and computing, mathematical and computational tools applied to music can help researchers discover important knowledge about human culture and creativity, including insights into how composers and performers experiment with, and decide on, new ideas. These scientific processes and discoveries are expected to impact fields such as musicology and neuroscience.
The article presented resources for learning more about this emerging field of mathematics and computation in music, including venues where music computing researchers convene and publish.
The article also cited open courseware and selected examples in automated music analysis, music composition and improvisation, and expressive performance, based on research projects at the USC Viterbi School of Engineering’s Music Computation and Cognition Laboratory as well as related work.
A computational scientist on leave from USC, Chew designs mathematical models and computational techniques to analyze music and its performance. As a pianist, she performs a wide range of contemporary, eclectic music.
Chew founded the Music Computation and Cognition Laboratory at USC and was the first honoree of the Viterbi Early Career Chair.
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The Chronicle of Higher Education mentioned USC’s $6 billion fundraising campaign. The story noted that USC had already raised $1 billion in a “quiet phase,” including the $200 million naming gift from USC Trustee and alumnus David Dornsife and wife Dana Dornsife to the USC Dornsife College.
The Guardian (U.K.) highlighted two major gifts to USC in a list of the 10 biggest philanthropic benefactors in America. The list included the $200 million naming gift from USC Trustee and alumnus David Dornsife and wife Dana Dornsife to the USC Dornsife College, and the $110 million gift from USC Trustee and USC Viterbi School alumnus John Mork and wife Julie to create the USC Mork Family Scholars Program.
The New York Times featured the USC U.S.-China Institute documentary “Assignment: China — The Week that Changed the World.” The documentary, part of a series, examines media coverage of the 1972 Nixon trip that reshaped U.S.-China relations after a quarter century of isolation and hostility. “People look back now and take it for granted that the outcome was preordained,” said the institute’s Mike Chinoy, who produced the documentary. Voice of America also featured the story.
Los Angeles Times featured the Oscar Senti-meter, a tool developed by the USC Annenberg School, Los Angeles Times and IBM that analyzes thousands of tweets about the Academy Awards nominees. The story noted that Mexican actor Demian Bechir received an enormous boost on Twitter the day of the nominations, with a total of 6,893 tweets mentioning him, a 47-fold increase from the day before. The story noted the tool uses language-recognition technology developed in collaboration with USC Viterbi School’s Signal Analysis and Interpretation Lab.
The Times of India (India) featured a three-day medical emergency training workshop organized in association with USC. At the workshop, held at GCS Medical College in India, 50 doctors and more than 100 paramedics learned how to improve emergency support systems. William Mallon of the Keck School of USC said that discussion topics included the use of portable ultrasonic devices to scan patients. “The ultrasound applications help physicians make accurate and timely decisions,” he noted. Daily News & Analysis (India) also featured the workshop.
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