For the past three decades Julius O. Smith III has been with the Center for Computer Research in Music and Acoustics (CCRMA), and is formally a professor of music and associate professor (by courtesy) of electrical engineering at Stanford University. He received the BS/EE degree from Rice University (Control, Circuits, and Communication) in 1975, and the PhD degree in EE from Stanford University (Information Systems Lab) in 1983. He worked in the Signal Processing Department at ESL, Inc., on systems for digital communications, in the Adaptive Systems Department at Systems Control Technology, Inc., on problems in adaptive filtering and spectral estimation, and at NeXT Computer, Inc., where he was responsible for sound, music, and signal processing software for the NeXT computer workstation. Smith's teaching and research pertain to music and audio applications of signal processing. He is a Fellow of the Acoustical Society of America and the Audio Engineering Society, and a member of the IEEE since 1976. He is the author of four online books and numerous research publications devoted to music and audio applications of signal processing.