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US 2022/0139411 A1Published application
Audio signal processing device, audio signal processing method, and audio signal processing program
AssigneeNtt Docomo, Inc.
InventorsKimitaka Tsutsumi, Kei Kikuiri, Atsushi Yamaguchi
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Abstract
An audio signal processing device comprises a discontinuity detector configured to determine an occurrence of a discontinuity from a sudden increase of an amplitude of decoded audio obtained by decoding the first audio packet which is received correctly after an occurrence of a packet loss, and a discontinuity corrector for correcting the discontinuity of the decoded audio.
Claims2
An audio signal processing method executed by an audio signal processing device, comprising:
- determining an occurrence of a discontinuity occurring with a sudden increase of an amplitude of a decoded audio obtained by decoding an audio packet received correctly after an occurrence of a packet loss, and
- correcting the discontinuity of the decoded audio,
- wherein correcting the discontinuity of the decoded audio comprises causing distances between ISF/LSF parameters corresponding to a frame in which a packet loss has occurred to be equal.
Dependencies are inferred from the claim text.