Although the special purpose graphics processing unit (GPU) found in many personal computers was designed to accelerate complex visual displays, the GPU can also be used for audio signal processing. Several case studies illustrate the use of the GPU in audio applications. For example with additive synthesis, 2 million sine waves were computed in real time, which is about a thousandfold better than a CPU implementation. FFTs and filters also were faster when using a GPU.

Authors: Savioja, Lauri; Välimäki, Vesa; Smith, Julius O.
Affiliations: NVIDIA Research and Department of Media Technology, Aalto University School of Science, Espoo, Finland; Department of Signal Processing and Acoustics, Aalto University School of Electrical Engineering, Espoo, Finland; Center for Computer Research in Music and Acoustics, Stanford University, Stanford, CA, USA(See document for exact affiliation information.)
JAES Volume 59 Issue 1/2 pp. 3-19; January 2011
Publication Date: March 9, 2011

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