Audio signal encoding method and device
US-9224401-B2 · Dec 29, 2015 · US
Method, apparatus and computer program for processing multi-channel signals
US9311925B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9311925-B2 |
| Application number | US-200913500871-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 12, 2009 |
| Priority date | Oct 12, 2009 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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Abstract
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The invention relates to a method and an apparatus in which samples of at least a part of an audio signal of a first channel and a part of an audio signal of a second channel are used to produce a sparse representation of the audio signals to increase the encoding efficiency. In an example embodiment one or more audio signals are input and relevant auditory cues are determined in a time-frequency plane. The relevant auditory cues are combined to form an auditory neurons map. Said one or more audio signals are transformed into a transform domain and the auditory neurons map is used to form a sparse representation of said one or more audio signal.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method comprising: inputting one or more audio signals for an audio scene; determining relevant auditory cues that preserve detailed information about sound features over time, said determining comprising: windowing said one or more audio signals, wherein said windowing comprises first and second windowings of different bandwidths to produce a first windowed audio signal and a second windowed audio signal respectively; transforming the first and…
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Physics · mapped topic
Physics · mapped topic
Electricity · mapped topic
- G10L19/022Primary
Physics · mapped topic
Electricity · mapped topic
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- What does patent US9311925B2 cover?
- The invention relates to a method and an apparatus in which samples of at least a part of an audio signal of a first channel and a part of an audio signal of a second channel are used to produce a sparse representation of the audio signals to increase the encoding efficiency. In an example embodiment one or more audio signals are input and relevant auditory cues are determined in a time-frequen…
- Who is the assignee on this patent?
- Ojanperä Juha, Nokia Technologies Oy
- What technology area does this patent fall under?
- Primary CPC classification G10L19/022. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 12 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).