Stereokodierung mit Komplexer Prädiktion auf Mdct-Basis
Anmelder: Dolby International AB 🇮🇪
Details
- Veröffentlichungs-Nr.
- EP4738350
- Anmeldetag
- 6. April 2011
- Veröffentlichung
- 6. Mai 2026
- Rechtsraum
- EP
- IPC
- G10L19/18
Abstract
The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. In one embodiment, a decoding method, for obtaining an output stereo signal from an input stereo signal encoded by complex prediction coding and comprising first frequency-domain representations of two input channels, comprises the upmixing steps of:(i) computing a second frequency-domain representation of a first input channel; and(ii) computing an output channel on the basis of the first and second frequency-domain representations of the first input channel, the first frequency-domain representation of the second input channel and a complex prediction coefficient. The method comprises performing frequency-domain modifications selectively before or after upmixing.
Anmelder
- Firma
- Dolby International AB
- Land
- 🇮🇪 Irland
Tochtergesellschaft der US-amerikanischen Dolby Laboratories mit Sitz in Amsterdam, die Patente und Lizenzen im Bereich Audio- und Videotechnologie verwaltet.
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