HADES (Haskins Analysis Display and Experiment Syste

refers to a family of

signal processing Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing ''signals'', such as audio signal processing, sound, image processing, images, and scientific measurements. Signal processing techniq ...

computer programs that was developed in the 1980s at

Haskins Laboratories Haskins Laboratories, Inc. is an independent 501(c) non-profit corporation, founded in 1935 and located in New Haven, Connecticut, since 1970. Haskins has formal affiliation agreements with both Yale University and the University of Connecticut; ...

Philip Rubin Philip E. Rubin (born May 22, 1949) is an American cognitive scientist, technologist, and science administrator known for raising the visibility of behavioral and cognitive science, neuroscience, and ethical issues related to science, techno ...

and colleagues to provide for the display and analysis of multiple channel physiological, speech, and other sampled data in an experimental context. Principal programmers over the years on this project included Vance Maveric

Mark Tied

Marian Pressler, and Simon Lev

The most significant feature of HADES was the incorporation of a procedural language known as ''SPIEL'' (Signal Processing Interactive Editing Language) that provided for the creation and customization of specialized analysis procedures that can be stored as text files, edited, etc., and are similar to functions and subroutines in programming languages like C (programming language), C and Fortran. HADES was one of the earliest signal processing systems with an integrated language and, through the use of SPIEL, provided for automated procedural analysis of large datasets, usually speech data or multiple-channel physiological data acquired with specialized hardware such as the EMM

magnetometer A magnetometer is a device that measures magnetic field or magnetic dipole moment. Different types of magnetometers measure the direction, strength, or relative change of a magnetic field at a particular location. A compass is one such device, o ...

system. Previous systems at the time included ''ILS'' from STI, Inc., and the MITSY

system designed by Bill Henke. HADES was written in C (programming language), C and implemented on

VAX VAX (an acronym for Virtual Address eXtension) is a series of computers featuring a 32-bit instruction set architecture (ISA) and virtual memory that was developed and sold by Digital Equipment Corporation (DEC) in the late 20th century. The VA ...

systems running

VMS #REDIRECT VMS {{redirect category shell, {{R from other capitalisation{{R from ambiguous page ...

. Although HADES still finds limited use, its functionality was eventually replaced by commercial systems such as

MATLAB MATLAB (an abbreviation of "MATrix LABoratory") is a proprietary multi-paradigm programming language and numeric computing environment developed by MathWorks. MATLAB allows matrix manipulations, plotting of functions and data, implementation ...

Bibliography

* Rubin, Philip E. (1995). HADES: A Case Study of the Development of a Signal Processing System. In R. Bennett, S. L. Greenspan & A. Syrdal (Eds.), ''Behavioral Aspects of Speech Technology: Theory and Applications''. CRC Press, Boca Raton, 501–520. * Rubin, Philip E. and Löfqvist, Anders (1997). HADES (Haskins Analysis Display and Experiment System).

Technical Report, unpublished. Numerical programming languages Digital signal processing