Voice switching for voice communication on computers
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United States of America Patent
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Jan 13, 2015
Issued Date -
N/A
app pub date -
Feb 11, 2013
filing date -
Feb 15, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A voice communication end device performs quality checks to determine whether acoustic echo cancellation would be ineffective, such as due to noise or clock drift or discontinuities between incoming and outgoing voice channels. In the case where echo cancellation would prove ineffective, the device falls back on a tri-state voice switching operation that includes a bi-direction state in which both channels are on in full duplex operation, which provides a smoother transition switching between active channels. The tri-state voice switching supports both voluntary transitions where the active user voluntarily stops to yield the active channel, and forced transitions where the active user is forcedly interrupted by the other user speaking more loudly.
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