Scalable Connectivity Processor for Computer Music Performance Systems

Title	Scalable Connectivity Processor for Computer Music Performance Systems
Publication Type	Conference Paper
Year of Publication	2000
Authors	Avizienis, Rimas [1], Freed Adrian [2], Suzuki Takahiko [3], and Wessel David [4]
Conference Name	International Computer Music Conference
Publisher	International Computer Music Association
Conference Location	Berlin, Germany
Abstract	Standard laptop computers are now capable of sizeable quantities of sound synthesis and sound processing, but low-latency, high quality, multichannel audio I/O has not been possible without a cumbersome external card cage. CNMAT has developed a solution using the ubiquitous 100BaseT Ethernet that supports up to 10 channels of 24-bit audio, 64 channels of sample-synchronous control-rate gesture data, and 4 precisely time-stamped MIDI I/O streams. Latency measurements show that we can get signals into and back out of Max/MSP in under 7 milliseconds. The central component in the device is a field programmable gate array (FPGA). In addition to providing a variety of computer interface capabilities, the device can function as a cross-coder for a variety of protocols including GMICS. This paper outlines the motivation, design, and implementation of the connectivity processor.
URL	http://cnmat.berkeley.edu/publication/scalable_connectivity_processor_computer_music_performance_systems [5]