MUTE PROCESSING APPARATUS AND METHOD FOR AUTOMATICALLY SENDING MUTE FRAMES
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 time span;
a coding unit, for coding the input signals within the time span;
a processing unit, for sending a mute frame within the time span if the energy levels of the input signals within previous continuous time spans are less than a predetermined energy level and the energy level of the input signals within the time span is still less than the predetermined energy level, otherwise controlling the coding unit to code the input signals within the 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 time span; sending a mute frame if the energy levels of the input signals within previous continuous time spans are less than a predetermined energy level and the energy level of the input signals within the time span is still less than the predetermined energy level, otherwise, coding the input signals within the time span; and outputting the mute frame or coded signals. A related apparatus is also provided.
11 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 energy calculating unit, for calculating an energy level of the input signals within a time span;
a coding unit, for coding the input signals within the time span;
a processing unit, for sending a mute frame within the time span if the energy levels of the input signals within previous continuous time spans are less than a predetermined energy level and the energy level of the input signals within the time span is still less than the predetermined energy level, otherwise controlling the coding unit to code the input signals within the 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:
- collecting input signals from a microphone;
calculating an energy level of input signals within a time span;
sending a mute frame if the energy levels of the input signals within previous continuous time spans are less than a predetermined energy level and the energy level of the input signals within the time span is still less than the predetermined energy level, otherwise, coding the input signals within the time span; and
outputting the mute frame or coded signals. - View Dependent Claims (9, 10, 11, 12, 13)
- collecting input signals from a microphone;
Specification