Method and apparatus for mitigating speech loss in a communicati

Details Method and apparatus for mitigating speech loss in a communicati Method and apparatus for mitigating speech loss in a communicati

1993-05-14

1996-09-10

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

With control signal

455 342, 455 541, 455116, 379 88, 370 84, 370109, H04B 700

Patent

active

055554474

ABSTRACT:
A communication system mitigates speech loss due to a delay (D) incurred during communication channel set-up and also accounts for the delay (D). The communication system time-compresses certain speech spoken by a user and buffers this time-compressed speech in a FIFO (827) at least until the communication channel set-up has been completed. Upon channel set-up, the communication system begins transmission of the stored time-compressed speech and transitions to transmission of normal spoken speech when the FIFO (827) storing the time-compressed speech is substantially empty.

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patent: 4100377 (1978-07-01), Flanagan
patent: 4164626 (1979-08-01), Fette
patent: 4821310 (1989-04-01), Lynk et al.
patent: 4839923 (1989-06-01), Kotzin
patent: 5014303 (1991-05-01), Velius
patent: 5109525 (1992-04-01), Nichols
"Real-Time Implementation of Time Domain Harmonic Scaling of speech for Rate Modification and Coding", Richard V. Cox et al., IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-31, No. 1, Feb., 1993, U.S.A. pp. 258-272.
"Time Compression and Expansion of Speech by the Sampling Method", Francis F. Lee; Journal of the Audio Engineering Society, vol. 20, No. 9, Nov., 1972, U.S.A. pp. 738-742.

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