Polycom SoundStation VTX1000 Reference Manual
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Polycom SoundStation VTX1000 Reference Manual

Polycom SoundStation VTX1000 Reference Manual

Polycom soundstation vtx1000: reference guide
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Download this manual See also: Configuration Manual
THE "BRAIN" MODEL OF
INTELLIGIBILITY
IN BUSINESS TELEPHONY
WHITE PAPER
Jeff Rodman
Fellow/CTO
January 16, 2003
jrodman@polycom.com
© 2003 P
, I
. A
.
OLYCOM
NC
LL RIGHTS RESERVED
P
P
, I
.
U
S
.
OLYCOM IS A REGISTERED TRADEMARK OF
OLYCOM
NC
IN THE
NITED
TATES AND OTHER COUNTRIES

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Summary of Contents for Polycom SoundStation VTX1000

  • Page 1 THE "BRAIN" MODEL OF INTELLIGIBILITY IN BUSINESS TELEPHONY WHITE PAPER Jeff Rodman Fellow/CTO January 16, 2003 jrodman@polycom.com © 2003 P OLYCOM LL RIGHTS RESERVED OLYCOM IS A REGISTERED TRADEMARK OF OLYCOM IN THE NITED TATES AND OTHER COUNTRIES...
  • Page 2 ---Eric Blore, in jail and on the phone to Fred Astaire in "Shall We Dance," 1937 Introduction There are times when there is no substitute for being understood on the telephone. Well before 1937, the limitations of the telephone in accurately conveying speech were known.
  • Page 3 Polycom, Inc. Page 3 of 8...
  • Page 4 Polycom, Inc. Page 4 of 8...
  • Page 5 The telephone network can compound this situation because telephone lines can have very different gains, varying in loudness by up to 20 dB (100 times) from connection to connection.
  • Page 6 (such as the Polycom wireless microphone) for the principal talker. Room treatments, of course, are also options for a direct solution in these cases; mounting acoustic diffuser and absorbing elements on the walls, ceiling, corners, and so forth, can make a significant improvement in the performance of the room.
  • Page 7 The Polycom Vortex and SoundStation VTX 1000 are examples of such systems.
  • Page 8 Bush Hill Park, Vol. 21 Part 5 (1999). Harvey Fletcher and Rogers H. Galt, “The Perception of Speech and Its Relation to Telephony,” The Journal of the Acoustical Society of America, 22 No. 2 (March 1950): 138. Polycom, Inc. Page 8 of 8...

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