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 coding method and apparatus
US9105265B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105265-B2 |
| Application number | US-201213567982-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 6, 2012 |
| Priority date | Feb 12, 2010 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A stereo coding method includes transforming a stereo left channel signal and a stereo right channel signal in a time domain to a frequency domain to form a left channel signal and a right channel signal in the frequency domain; down-mixing the left channel signal and the right channel signal in the frequency domain to generate a monophonic down-mix signal, and transmitting bits obtained after quantization coding is performed on the down-mix signal; extracting spatial parameters of the left channel signal and the right channel signal in the frequency domain; estimating a group delay and a group phase between stereo left and right channels by using the left channel signal and the right channel signal in the frequency domain; and performing quantization coding on the group delay, the group phase and the spatial parameters, so as to obtain a high-quality stereo coding performance at a low bit rate.
First claim
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What is claimed is: 1. A stereo coding method, comprising: transforming a stereo left channel signal and a stereo right channel signal in a time domain to form a left channel signal and a right channel signal in a frequency domain; down-mixing the left channel signal and the right channel signal in the frequency domain to generate a monophonic down-mix signal; transmitting bits obtained after quantization coding is performed on the down-mix signal; extracting spatial paramet…
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- G10L19/008Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US9105265B2 cover?
- A stereo coding method includes transforming a stereo left channel signal and a stereo right channel signal in a time domain to a frequency domain to form a left channel signal and a right channel signal in the frequency domain; down-mixing the left channel signal and the right channel signal in the frequency domain to generate a monophonic down-mix signal, and transmitting bits obtained after …
- Who is the assignee on this patent?
- Wu Wenhai, Miao Lei, Lang Yue, and 2 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 Aug 11 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).