Telephony channel simulator for speech recognition application

Details Telephony channel simulator for speech recognition application Telephony channel simulator for speech recognition application

1994-02-24

1995-12-12

MacDonald, Allen R.

395 263, 395 265, 395 236, G01L 900

Patent

active

054757924

ABSTRACT:
A telephony channel simulation process is disclosed for training a speech recognizer to respond to speech obtained from telephone systems. An input speech data set is provided to a speech recognition training processor, whose bandwidth is higher than a telephone bandwidth. The process performs a series of alterations to the input speech data set to obtain a modified speech data set. The modified speech data set enables the speech recognition processor to perform speech recognition on voice signals from a telephone system.

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