Concept for generating an enhanced sound field description or a modified sound field description using a multi-point sound field description
US-2024098445-A1 · Mar 21, 2024 · US
Stereo encoding method, stereo encoding device, and encoder
US9064488B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9064488-B2 |
| Application number | US-201113224806-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 2, 2011 |
| Priority date | Mar 4, 2009 |
| Publication date | Jun 23, 2015 |
| Grant date | Jun 23, 2015 |
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Abstract
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A stereo encoding method, a stereo encoding device, and an encoder are provided. The stereo encoding method includes: obtaining a left channel energy relation coefficient and a right channel energy relation coefficient; obtaining a left energy sum and a right energy sum respectively; performing cross correlation between sub-bands of a first monophonic signal at a wave trough and sub-bands of the left channel signal according to the left channel energy relation coefficient, and performing cross correlation between sub-bands of the first monophonic signal at the wave trough and sub-bands of the right channel signal according to the right channel energy relation coefficient; obtaining a scaling factor by using the left energy sum, the right energy sum, and cross correlation results; and encoding the stereo left and right channel signals according to the scaling factor.
First claim
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What is claimed is: 1. A stereo encoding method, comprising: obtaining a left channel energy relation coefficient between a first monophonic signal and a left channel signal and a right channel energy relation coefficient between the first monophonic signal and a right channel signal, wherein the first monophonic signal is generated by downmixing stereo left and right channel signals; obtaining a left energy sum of sub-bands of the first monophonic signal at a wave trough that a…
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Electricity · mapped topic
Physics · mapped topic
- G10L19/008Primary
Physics · mapped topic
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- What does patent US9064488B2 cover?
- A stereo encoding method, a stereo encoding device, and an encoder are provided. The stereo encoding method includes: obtaining a left channel energy relation coefficient and a right channel energy relation coefficient; obtaining a left energy sum and a right energy sum respectively; performing cross correlation between sub-bands of a first monophonic signal at a wave trough and sub-bands of th…
- Who is the assignee on this patent?
- Lang Yue, Wu Wenhai, Miao Lei, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification G10L19/008. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 23 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).