MUTE PROCESSING APPARATUS AND METHOD
First Claim
1. A mute processing apparatus for automatically sending mute frames during a multi-person communication over a network, the apparatus comprising:
- a sampling unit, for collecting input signals from a microphone;
an amplitude analyzer, for obtaining a maximum amplitude of the input signals within a present time span;
a coding unit, for coding the input signals within the present time span;
a processing unit, for sending a mute frame within the time span if each maximum amplitude of the input signals within each of previous continuous time spans is less than a predetermined amplitude and the maximum amplitude of the input signals within the present time span is still less than the predetermined amplitude, otherwise controlling the coding unit to code the input signals within the present time span; and
an output unit, for outputting the mute frame from the processing unit or coded signals from the coding unit.
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Abstract
A mute processing method used in a multi-person communication system is provided. The method is capable of automatically sending mute frames when there are no sound inputs from terminals of the multi-person communication system. The method includes the steps of: collecting input signals from a microphone; obtaining a maximum amplitude of the input signals within a present time span; sending a mute frame if each maximum amplitude of the input signals within each of previous continuous time spans is less than a predetermined amplitude and the maximum amplitude of the input signals within the present time span is still less than the predetermined amplitude, otherwise, coding the input signals within the present time span; and outputting the mute frame or coded signals. A related apparatus is also provided.
13 Citations
13 Claims
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1. A mute processing apparatus for automatically sending mute frames during a multi-person communication over a network, the apparatus comprising:
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a sampling unit, for collecting input signals from a microphone;
an amplitude analyzer, for obtaining a maximum amplitude of the input signals within a present time span;
a coding unit, for coding the input signals within the present time span;
a processing unit, for sending a mute frame within the time span if each maximum amplitude of the input signals within each of previous continuous time spans is less than a predetermined amplitude and the maximum amplitude of the input signals within the present time span is still less than the predetermined amplitude, otherwise controlling the coding unit to code the input signals within the present time span; and
an output unit, for outputting the mute frame from the processing unit or coded signals from the coding unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mute processing method for automatically sending mute frames during a multi-person communication over a network, the method comprising the steps of:
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collecting input signals from a microphone;
obtaining a maximum amplitude of input signals within a present time span;
sending a mute frame if each maximum amplitude of the input signals within each of previous continuous time spans is less than a predetermined amplitude and the maximum amplitude of the input signals within the present time span is still less than the predetermined amplitude, otherwise, coding the input signals within the present time span; and
outputting the mute frame or coded signals. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification