文档介绍：Corey I. Cheng* and Moving Sound Source
Gregory H. Wakefield†
*Dolby Laboratories Synthesis for Binaural
100 Potrero Avenue
San Francisco, California 94103-4813, USA Electroacoustic Music
cnc@
.edu/ϳcoreyc
This work pleted at the University Using Interpolated
of Michigan, Ann Arbor.
†University of Michigan Head-Related Transfer
Department of Electrical Engineering
puter Science Functions (HRTFs)
1101 Beal Ave.
Ann Arbor, Michigan 48109, USA
******@
.edu/ϳghw
Recent advances putational power, acoustic then define interpolated HRTFs, describe why they
measuring techniques, and hearing technology have are important for synthesizing moving sound
made sound spatialization and moving sound sources for headphone listening, and describe a new
source synthesis both popular and widely accessi- method puting interpolated HRTFs based
ble sound-sculpting tools. In particular, much at- on observations made from the SFRS-based visuali-
tention has been given to the use of Head-Related zation of HRTF data.
Transfer Functions (HRTFs), filters that mimic the Using a MATLAB-based implementation of a
directionally dependent filtering of the human ex- simple spatialization system that uses interpolated
ternal ear. HRTFs have been used in headphone- HRTFs to synthesize moving sound sources, we de-
and loudspeaker-based spatialization systems to scribe the capabilities and limitations of HRTF-
simulate the spectral cues responsible for direc- based moving sound source synthesis with some
tional hearing. observations made from informal listening experi-
This article presents some techniques on how to ments. Based on these observations, we suggest
compose with interpolated HRTFs to synthesize that current technical restrictions define certain
moving sound sources for binaural positional problems that poser might
music intended for headphone listening. In this choose to solve, avoid, or exploit to produce musi-
sense, we intend the article to describe some p