Advances in the Parallelization of Music and Audio Applications

TitleAdvances in the Parallelization of Music and Audio Applications
Publication TypeConference Paper
Year of Publication2010
AuthorsBattenberg, E., Freed A., & Wessel D.
Conference NameProceedings of the International Computer Music Conference (2010)
Date Published6/2010
Conference LocationNew York, NY and Stony Brook University, NY
Abstract

Multi-core processors are now common but musical and
audio applications that take advantage of multiple cores are
rare. The most popular music software programming
environments are sequential in character and provide only
a modicum of support for the efficiencies to be gained
from parallelization. We provide a brief summary of
existing facilities in the most popular languages and
provide examples of parallel implementations of some key
algorithms in computer music such as partitioned
convolution and non-negative matrix factorization NMF.
We follow with a brief description of the SEJITS approach
to providing support between the productivity layer
languages used by musicians and related domain experts
and efficient parallel implementations. We also consider
the importance of I/O in computer architectures for music
and audio application. We lament the fact that current
GPU architectures as delivered in desk and laptop
processors are not properly harnessed for low-latency real-
time audio applications.

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