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US-9208775-B2 · Dec 8, 2015 · US
Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same
US9224399B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9224399-B2 |
| Application number | US-201313916835-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 13, 2013 |
| Priority date | Jul 27, 2005 |
| Publication date | Dec 29, 2015 |
| Grant date | Dec 29, 2015 |
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Abstract
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An apparatus and method for concealing frame erasure and a voice decoding apparatus and method using the same. The frame erasure concealment apparatus includes: a parameter extraction unit determining whether there is an erased frame in a voice packet, and extracting an excitement signal parameter and a line spectrum pair parameter of a previous good frame; and an erasure frame concealment unit, if there is an erased frame, restoring the excitement signal and line spectrum pair parameter of the erased frame by using a regression analysis from the excitement signal and line spectrum pair parameter of the previous good frame. According to the method and apparatus, by predicting and restoring the parameter of the erased frame through the regression analysis, the quality of the restored voice signal can be enhanced and the algorithm can be simplified.
First claim
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What is claimed is: 1. A method for concealing frame erasure, the method comprising: receiving a bitstream transmitted from an encoder; predicting a first parameter of an erased frame of the bitstream, by performing a linear regression analysis on a second parameter obtained from a plurality of previous good frames; obtaining a gain parameter between the first parameter of the erased frame and the second parameter; concealing, by using a processor, the erased frame, by apply…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G10L19/005Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9224399B2 cover?
- An apparatus and method for concealing frame erasure and a voice decoding apparatus and method using the same. The frame erasure concealment apparatus includes: a parameter extraction unit determining whether there is an erased frame in a voice packet, and extracting an excitement signal parameter and a line spectrum pair parameter of a previous good frame; and an erasure frame concealment unit…
- Who is the assignee on this patent?
- Samsung Electronics Co Ltd, Samsung Electroncis Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G10L19/005. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 29 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).