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CNMAT Connectivity Processor

status: active at different link (as of 12-Mar-21)

Status details: I believe this is active on this link instead:

Project Type: Hardware

Project URL:

OSC Documentation URL:


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.

Implementation Details

Platform(s): Any / Platform Independent

Features: Bundle Support, High Speed, Stateless Interface

Supported OSC types: i: int32, f: float32

Bundle support: Creates Bundles

Timetag support: Generates “immedate” timestamp

Transport support: UDP

Submitted to by Anonymous at 2/24/21 12:32

This page of OpenSoundControl website updated Fri May 21 13:32:10 PDT 2021 by matt (license: CC BY).