Sten Ternström is the head of the Sound and Music Computing research group at KTH Royal Institute of Technology in Stockholm, where the sounds of instruments, voices and objects are scientifically investigated by an international team of researchers. The group is in the department of Speech, Music and Hearing that was founded by Gunnar Fant in 1951. Ternström received his MScEE in 1982, PhD in 1989 and succeeded Johan Sundberg as professor in 2003. His research centers on technical aspects of voice acoustics, especially of singing and of choirs. He also likes to stay current with acoustics and sound processing for music and audio, and teaches in several courses on those topics.