ewa@beowulf.ucsd.edu (Eric Anderson) (05/11/91)
Does anyone know if it is possible to use MacRecorder (from Farallon) to perform instant processing of live audio? For example, a VU meter, or even a frequency analyzer? The basic question is, can samples be read continuously from MacRecorder, or is there a big buffering delay somewhere along the path? How about the microphone port built in to the newer Macs? Please respond by mail (or mail and posting). Thanks! Eric Anderson ewa@cs.ucsd.edu Computer Systems Laboratory (619)534-8604 Department of Computer Science and Engineering University of California, San Diego 9500 Gilman Drive 0114 La Jolla, CA 92093-0114
russotto@eng.umd.edu (Matthew T. Russotto) (05/12/91)
In article <19281@sdcc6.ucsd.edu> ewa@beowulf.ucsd.edu (Eric Anderson) writes: >Does anyone know if it is possible to use MacRecorder (from Farallon) to >perform instant processing of live audio? For example, a VU meter, or >even a frequency analyzer? The basic question is, can samples be read >continuously from MacRecorder, or is there a big buffering delay somewhere >along the path? I've got a few programs which show an oscilliscope-type display, and one which shows a frequency spectrum display, so I'd say it is possible. I think you read the samples right off the serial port, with a minimum of buffering. (sorry, I don't have any source). -- Matthew T. Russotto russotto@eng.umd.edu russotto@wam.umd.edu .sig under construction, like the rest of this campus.
elliott@veronica.cs.wisc.edu (James Elliott) (05/12/91)
In <1991May11.222658.14215@eng.umd.edu> russotto@eng.umd.edu (Matthew T. Russotto) writes: >I've got a few programs which show an oscilliscope-type display, and one which >shows a frequency spectrum display, so I'd say it is possible. I think you >read the samples right off the serial port, with a minimum of buffering. >(sorry, I don't have any source). Farallon does (or used to) provide sample source (Think C) for interacting directly with the MacRecorder. Just contact their Tech Support. -- Jim Elliott "Like a bridge he'll come between us, not a wall" elliott@veronica.cs.wisc.edu