<s>
HADES	B-Language
(	O
Haskins	O
Analysis	O
Display	O
and	O
Experiment	O
System	O
)	O
refers	O
to	O
a	O
family	O
of	O
signal	O
processing	O
computer	O
programs	O
that	O
was	O
developed	O
in	O
the	O
1980s	O
at	O
Haskins	O
Laboratories	O
by	O
Philip	O
Rubin	O
and	O
colleagues	O
to	O
provide	O
for	O
the	O
display	O
and	O
analysis	O
of	O
multiple	O
channel	O
physiological	O
,	O
speech	O
,	O
and	O
other	O
sampled	O
data	O
in	O
an	O
experimental	O
context	O
.	O
</s>
<s>
The	O
most	O
significant	O
feature	O
of	O
HADES	B-Language
was	O
the	O
incorporation	O
of	O
a	O
procedural	O
language	O
known	O
as	O
SPIEL	O
(	O
Signal	O
Processing	O
Interactive	O
Editing	O
Language	O
)	O
that	O
provided	O
for	O
the	O
creation	O
and	O
customization	O
of	O
specialized	O
analysis	O
procedures	O
that	O
can	O
be	O
stored	O
as	O
text	O
files	O
,	O
edited	O
,	O
etc.	O
,	O
and	O
are	O
similar	O
to	O
functions	O
and	O
subroutines	O
in	O
programming	O
languages	O
like	O
C	B-Language
and	O
Fortran	B-Application
.	O
</s>
<s>
HADES	B-Language
was	O
one	O
of	O
the	O
earliest	O
signal	O
processing	O
systems	O
with	O
an	O
integrated	O
language	O
and	O
,	O
through	O
the	O
use	O
of	O
SPIEL	O
,	O
provided	O
for	O
automated	O
procedural	O
analysis	O
of	O
large	O
datasets	O
,	O
usually	O
speech	O
data	O
or	O
multiple-channel	O
physiological	O
data	O
acquired	O
with	O
specialized	O
hardware	O
such	O
as	O
the	O
EMMA	O
magnetometer	O
system	O
.	O
</s>
<s>
HADES	B-Language
was	O
written	O
in	O
C	B-Language
and	O
implemented	O
on	O
VAX	B-Device
systems	O
running	O
VMS	B-Operating_System
.	O
</s>
<s>
Although	O
HADES	B-Language
still	O
finds	O
limited	O
use	O
,	O
its	O
functionality	O
was	O
eventually	O
replaced	O
by	O
commercial	O
systems	O
such	O
as	O
MATLAB	B-Language
.	O
</s>
