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US 2018/0122386 A1Published application
Frame error concealment method and apparatus and error concealment scheme construction method and apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsHo-sang Sung, Ki-hyun CHOO, Jung-hoe KIM, Eun-mi OH, Chang-yong SON, Kang-eun LEE
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Abstract
Provided are a frame error concealment method and apparatus and an error concealment scheme construction method and apparatus. The frame error concealment method includes generating a new signal by synthesizing a plurality of previous signals that are similar to a signal of an error frame and reconstructing the signal of the error frame using the generated signal.
Claims4
A method of concealing frame losses, the method comprising:
- receiving an input signal including a current frame and a previous frame;
- if an error occurs in the current frame, selecting, by at least one processing device, an error concealment scheme for the current frame from among a plurality of error concealment schemes including a scheme related to repetition, based on a plurality of parameters including an error concealment scheme determined in the previous frame;
- concealing, by the at least one processing device, the current frame, based on the selected error concealment scheme for the current frame;
- generating a reconstructed signal based on at least the concealed current frame,
- wherein the input signal has one or a combination of audio characteristic and speech characteristic.
2 more elements
An apparatus for concealing frame losses, the apparatus comprising:
- a receiving unit configured to receive an input signal including a current frame and a previous frame;
- and
- at least one processor configured to:
- if an error occurs in the current frame, select an error concealment scheme for the current frame from among a plurality of error concealment schemes including a scheme related to repetition, based on a plurality of parameters including an error concealment scheme determined in the previous frame;
- conceal the current frame, based on the selected error concealment scheme for the current frame;
- and
- generate a reconstructed signal based on at least the concealed current frame,
- wherein the input signal has one or a combination of audio characteristic and speech characteristic.
5 more elements
Dependencies are inferred from the claim text.