问答题

Section C
Karaoke may never be the same, thanks to research being presented in Nashville detailing the latest findings in efforts to create a computerized system that makes average singers sound like professionals.
"Our (26) goal is to have a computer system that will (27) a poor singing voice into a great singing voice," said Mark J.T. Smith, a professor of Purdue University, who is working with a graduate student Matthew Lee to create computer models for voice analysis and synthesis. These models break the human singing voice into components that can be (28) to produce a more professional-sounding rendition (演唱) of the original voice.
Far more work is needed before the system is finished, Smith said. He said the specialized programs are, however, able to alter certain important (29) of a person’s voice, such as pitch, duration.
Lee will present the latest research findings during the 145th Meeting of the Acoustical Society of America in Nashville, Tenn, the nation’s country music capital. He will (30) the system by playing before-and-after country music (31) clips to researchers there.
The system uses a special technique to break down the original voice. The voice is then reconstructed (32) a mathematical method which enables the system to resynthesize the voice quickly.
Smith, who specializes in signal (33) , began working on the underlying "sinusoidal mode" (正弦曲线投影模式) in the mid-1980s. (34) . More recently, Smith and Lee developed a method for modifying to improve the quality of singing.
" (35) , we also face the challenge of handling all types of voices reliably," Smith said. " (36)