http://www.macnn.com/articles/05/07/25/signalsuite.2.released/
SignalSuite 2 adds new UI, AppleScript support, more
updated 06:40 pm EDT, Mon July 25, 2005
SignalSuite 2 released
Faber Acoustical has released , a major upgrade to its realtime signal generator. Version 2 offers a completely rewritten user interface, AppleScript support, new test signals such as MLS, support for saving test signals directly to a sound file, and numerous other improvements. SignalSuite takes advantage of your Mac OS X compatible audio hardware to turn your Mac into a dual-channel signal generator. Generate numerous test signals, including white noise, pink noise, periodic signals, frequency sweeps and others, with ease and precision! SignalSuite 2, which requires Mac OS X 10.3 or later, is available for $40 (with upgrades priced at $15).
