<s>
SpeechBot	B-Application
was	O
a	O
web	B-Application
search	I-Application
engine	I-Application
for	O
streaming	O
media	O
content	O
developed	O
at	O
Compaq	O
's	O
(	O
later	O
HP	O
)	O
research	O
laboratories	O
in	O
Cambridge	O
,	O
MA	O
and	O
Australia	O
.	O
</s>
<s>
The	O
internet	O
radio	O
shows	O
indexed	O
by	O
SpeechBot	B-Application
included	O
The	O
Motley	O
Fool	O
,	O
Fresh	O
Air	O
,	O
Talk	O
of	O
the	O
Nation	O
,	O
The	O
Dr.	O
Laura	O
Program	O
,	O
and	O
Dreamland	O
with	O
Art	O
Bell	O
.	O
</s>
<s>
The	O
SpeechBot	B-Application
indexing	O
workflow	O
involved	O
a	O
farm	O
of	O
Windows	B-Application
workstations	O
that	O
retrieved	O
the	O
streaming	O
content	O
;	O
and	O
a	O
Linux	B-Architecture
cluster	I-Architecture
running	O
speech	B-Application
recognition	I-Application
to	O
transcribe	O
the	O
spoken	O
audio	O
.	O
</s>
<s>
The	O
web	B-Application
server	I-Application
,	O
search	B-Application
index	I-Application
and	O
metadata	O
library	O
were	O
hosted	O
on	O
AlphaServers	B-Device
running	O
Tru64	B-Operating_System
UNIX	I-Operating_System
.	O
</s>
<s>
If	O
transcripts	O
were	O
already	O
available	O
,	O
then	O
these	O
were	O
aligned	O
to	O
the	O
audio	O
stream	O
;	O
otherwise	O
,	O
an	O
approximate	O
transcript	O
was	O
produced	O
using	O
speech	B-Application
recognition	I-Application
.	O
</s>
<s>
The	O
Calista	O
recognizer	O
that	O
was	O
used	O
was	O
derived	O
from	O
Sphinx-3	B-General_Concept
.	O
</s>
<s>
Due	O
to	O
the	O
low	O
quality	O
of	O
streaming	O
audio	O
at	O
the	O
time	O
,	O
the	O
word	B-General_Concept
error	I-General_Concept
rate	I-General_Concept
was	O
quite	O
high	O
,	O
but	O
most	O
searches	O
were	O
still	O
able	O
to	O
retrieve	O
relevant	O
hits	O
.	O
</s>
<s>
The	O
search	B-Application
results	I-Application
linked	O
to	O
the	O
offset	O
in	O
the	O
stream	O
that	O
corresponded	O
to	O
the	O
search	O
phrase	O
,	O
so	O
that	O
users	O
did	O
not	O
need	O
to	O
listen	O
to	O
the	O
entire	O
program	O
to	O
find	O
the	O
section	O
of	O
interest	O
.	O
</s>
