I am employed at the
Eaton-Peabody Laboratory of Auditory Physiology
as a Senior Research Support Engineer. EPL is a consortium between the
Research Laboratory of Electronics
Massachusetts Institute of Technology
(my Alma Mater),
Massachusetts Eye and Ear Infirmary,
Massachusetts General Hospital,
and Harvard Medical School.
The Laboratory staff includes faculty from both MIT and Harvard Medical
School. Undergraduates from both Harvard and MIT work on various projects
during the summer, while graduate students and post-docs work year round
(and sometimes round the clock) on interdisciplinary research teams.
A number of graduate students in the Health Sciences and Technology (HST)
Speech and Hearing Program are involved in research here.
entail maintaining a network of computers including Macintosh,
Sun, VAX, NeXT, SGI and even PC platforms, including support of both
system and application software; design and construction of analog and
digital systems for instrumentation, as well as doing or arranging for
machining and electrical systems work.
Another large chunk of time goes to assisting students and researchers
learn how to use new (or old) pieces of equipment or software - or trying
to mediate between user expectations and hardware / software capabilities.
This is not to say that nothing else was going on in the interim,
but much work during these years was for computer systems that no
longer exist! Things like programming high quality vector fonts for
incremental plotters, graphics drivers for the Versatec electrostatic
printer-plotter and any other graphics devices that came in,
enhancements to the FOCAL programming language that were
breakthoughs in their day, but are only history now.
Also file transfers, conversions and updates through a
succession of operating systems,
such as LAP-6, OS-8, RT-11, VAX-VMS, Unix System 6, Ultrix, Sun-OS
and where to next?
- Graphics terminal emulator for the
Assembly code for the LINC to emulate (after a fashion)
an IMLAC display processor.
- Programmable Timing Generator (1974)
Computer-controlled eight channel digital delays, gates, and pulse
trains, a versatile laboratory instrument.
- Programmable Oscillator (1976 & 1991)
A direct-digital synthesizer, remarkable in its time for low cost,
ease of computer interface, and no relays or trimpots to wear out
or need adjusting.
- Interaural Delay Line (1979)
Delay of an audio signal in 10 microsecond steps for sound localization
experiments - computer or manually controlled.
- Multichannel Event Timer (1988)
Precise time-stamping of events for later correlation and statistics
- Precision Step Attenuator (1989)
A multichannel computer controlled audio attenuator with
range from 0 to -130dB in 0.1dB steps, minimal phase shift and rolloff
from DC to well over 50kHz.
Other projects can be found on my
Corrections, additions or comments?
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Original June 22, 1994
Last Modified: Jun 10 19:36 EDT 2008 /