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 energy calculating unit, for calculating an energy level of the input signals within a present time span;
an amplitude analyzer, for obtaining a maximum amplitude of the input signals within the 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 present time span if the energy level and the maximum amplitude of the input signals are respectively less than a predetermined energy level and a 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; calculating an energy level of the input signals within a present time span; obtaining a maximum amplitude of the input signals within the present time span; sending a mute frame if the energy level and the maximum amplitude of the input signals within the present time span are respectively less than a predetermined energy level and a 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.
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Citations
5 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 energy calculating unit, for calculating an energy level of the input signals within a present time span;
an amplitude analyzer, for obtaining a maximum amplitude of the input signals within the 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 present time span if the energy level and the maximum amplitude of the input signals are respectively less than a predetermined energy level and a 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)
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4. 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;
calculating an energy level of the input signals within a present time span;
obtaining a maximum amplitude of the input signals within the present time span;
sending a mute frame if the energy level and the maximum amplitude of the input signals within the present time span are respectively less than a predetermined energy level and a predetermined amplitude, otherwise, coding the input signals within the present time span; and
outputting the mute frame or coded signals. - View Dependent Claims (5)
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Specification