Rückwärtskompatible Integration von Hochfrequenzrekonstruktionstechniken für Audiosignale
Anmelder: Dolby International AB 🇮🇪
Details
- Veröffentlichungs-Nr.
- EP4769390
- Anmeldetag
- 28. Januar 2019
- Veröffentlichung
- 1. Juli 2026
- Rechtsraum
- EP
- IPC
- G10L19/00
Abstract
A method for decoding an encoded audio bitstream is disclosed. The method includes receiving the encoded audio bitstream and decoding the audio data to generate a decoded lowband audio signal. The method further includes extracting high frequency reconstruction metadata and filtering the decoded lowband audio signal with an analysis filterbank to generate a filtered lowband audio signal. The method also includes extracting a flag indicating whether either spectral translation or harmonic transposition is to be performed on the audio data and regenerating a highband portion of the audio signal using the filtered lowband audio signal and the high frequency reconstruction metadata in accordance with the flag.
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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