Audio overhang reduction for wireless calls
AssigneeMotorola, Inc.
InventorsJohn M. Harris, Philip J. Fleming, Joseph Tobin
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Abstract
To address the need for reducing audio overhang in wireless communication systems (e.g., 100), the present invention provides for the deletion of silent frames before they are converted to audio by the listening devices. The present invention only provides for the deletion of a portion of the silent frames that make up a period of silence or low voice activity in the speaker's audio. Voice frames that make up periods of silence less than a given length of time are not deleted.
Claims19
A method for reducing audio overhang in a wireless call comprising the steps of:
- receiving voice frames that convey voice information for the wireless call, wherein at least some of the frames, silent frames, indicate that a portion of the wireless call comprises low voice activity or no voice activity;
- monitoring the number of voice frames stored in a frame buffer after being received;
- and
- when the number of voice frames stored in the frame buffer exceeds a size threshold, deleting at least one silent frame that was received thereby preventing conversion of the at least one silent frame to audio.
A mobile station (MS) comprising:
- a frame buffer;
- a receiver adapted to receive voice frames that convey voice information for a wireless call, wherein at least some of the frames, silent frames, indicate that a portion of the wireless call comprises low voice activity or no voice activity;
- and
- a processor adapted to monitor the number of voice frames stored in the frame buffer after being received and adapted to delete at least one silent frame that was received thereby preventing conversion of the at least one silent frame to audio, when the number of voice frames stored in the frame buffer exceeds a size threshold.
Fixed network equipment (FNE) comprising:
- a frame buffer;
- a receiver adapted to receive voice frames that convey voice information for a wireless call, wherein at least some of the frames, silent frames, indicate that a portion of the wireless call comprises low voice activity or no voice activity;
- and
- a processor adapted to monitor the number of voice frames stored in the frame buffer after being received and adapted to delete at least one silent frame that was received thereby preventing conversion of the at least one silent frame to audio, when the number of voice frames stored in the frame buffer exceeds a size threshold.
Dependencies are inferred from the claim text.