Circuit for suppressing amplitude peaks caused by stop consonants in an electroacoustic transmission system
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United States of America Patent
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May 13, 1986
Grant Date -
N/A
app pub date -
Dec 20, 1984
filing date -
Dec 22, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A circuit in an electroacoustic transmission system suppresses amplitude peaks which are caused by the utterance of a stop consonant such as a 'P'. A microphone of the transmission system has an output which a high-pass filter is connected. The high-pass filter is normally inactive but can be activated by an electronic switch for a brief period of time. The switch is controlled by a train of electronic elements functioning as a detector for detecting a characteristic quiescent or pause period before the explosive discharge of the stop consonant. Upon detecting this pause the electronic switch is activated and held activated for about 10 to 30 ms. During that time the peak occurs but is suppressed in that it is not passed by the high-pass filter which is activated during this time.
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