Encoding/decoding apparatus for processing channel signal and method therefor
US-2015371645-A1 · Dec 24, 2015 · US
Method and apparatus for controlling audio frame loss concealment
US9293144B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9293144-B2 |
| Application number | US-201414422249-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 22, 2014 |
| Priority date | Feb 5, 2013 |
| Publication date | Mar 22, 2016 |
| Grant date | Mar 22, 2016 |
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Abstract
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Methods and related apparatuses control concealment for a lost audio frame of a received audio signal. A method for a decoder of concealing a lost audio frame includes detecting in a property of the previously received and reconstructed audio signal, or in a statistical property of observed frame losses, a condition for which the substitution of a lost frame provides relatively reduced quality. In case such a condition is detected, the concealment method is modified by selectively adjusting a phase or a spectrum magnitude of a substitution frame spectrum.
First claim
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The invention claimed is: 1. A method by a computer processor for controlling a concealment method for a lost audio frame of a received audio signal, the method comprising: detecting in a property of a previously received and reconstructed audio signal a transient condition that could lead to suboptimal reconstruction quality, when an original concealment method is used to create a substitution frame; and modifying the original concealment method by selectively adjusting a spect…
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Physics · mapped topic
- G10L19/0017Primary
Physics · mapped topic
- G10L19/005Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9293144B2 cover?
- Methods and related apparatuses control concealment for a lost audio frame of a received audio signal. A method for a decoder of concealing a lost audio frame includes detecting in a property of the previously received and reconstructed audio signal, or in a statistical property of observed frame losses, a condition for which the substitution of a lost frame provides relatively reduced quality.…
- Who is the assignee on this patent?
- Ericsson Telefon Ab L M
- What technology area does this patent fall under?
- Primary CPC classification G10L19/0017. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 22 2016 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).