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US 10,096,324 B2Granted
Method and apparatus for concealing frame error and method and apparatus for audio decoding
AssigneeSamsung Electronics Co., Ltd.
InventorsHo-sang Sung, Nam-suk Lee
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Abstract
A frame error concealment (FEC) method is provided. The method includes: selecting an FEC mode based on states of a current frame and a previous frame of the current frame in a time domain signal generated after time-frequency inverse transform processing; and performing corresponding time domain error concealment processing on the current frame based on the selected FEC mode, wherein the current frame is an error frame or the current frame is a normal frame when the previous frame is an error frame.
Claims6
A frame error concealment apparatus comprising:
- at least one processing device configured to:
- select one mode from among a plurality of modes associated with repetition and smoothing, for a time domain signal of a current frame in at least one of a speech signal and an audio signal;
- and
- perform a corresponding error concealment processing on the current frame based on the selected mode,
- wherein the current frame is classified as an error frame, a next good frame after a single error frame or a next good frame after a burst error frame, and
- wherein the plurality of modes include a first mode related to the error frame, a second mode related to the next good frame after the single error frame, and a third mode related to the next good frame after the burst error frame.
3 more elements
Dependencies are inferred from the claim text.