Method and arrangement for simultaneous recording of incoming and outgoing voice signals with compression of silence periods
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United States of America Patent
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Oct 24, 2000
Grant Date -
N/A
app pub date -
Dec 17, 1997
filing date -
Dec 20, 1996
priority date (Note) -
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Abstract
This invention relates to a method by means of which more than one audio signal can be recorded in compressed form in a memory element, and to a system implementing such a method. In the system according to the invention, audio signal samples are recorded only when voice is detected in the audio signals. The system according to the invention saves memory capacity required by the recording by combining the audio signal samples when voice is detected in samples of more than one audio signal. Furthermore, an audio signal is not recorded when no voice is detected in the signal. The invention also reduces the average computing capacity needed and thus power consumption, since signal combination, or mixing, is advantageously performed only when voice is detected in the samples of more than one audio signal.
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