Using metadata to aggregate signal processing operations

US11545166B2 · kind B2 · utility

Assignee

• Dolby International AB · IE

Inventors

• Alexander Stahlmann · Bubenreuth, DE
• Reinhold Boehm · Koblenzer Straße, DE
• Mark C. Leddy · Nuremberg, DE
• Karsten Linzmeier · Nuremberg, DE
• Vinay Mathew · Furth, DE
• Simon Plain · Nuremberg, DE
• Heiko Purnhagen · Sundbyberg, SE
• Leif Sehlstrom · Järfälla, SE
• Robin Thesing · Nuremberg, DE

Key dates

• Filing date: Jul 1, 2020
• Grant date: Jan 3, 2023
• Expiry date: Sep 25, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04S2400/13
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A technique including receiving and decoding a coded bitstream encoded with audio content including first audio objects corresponding to a first media content type of two consecutive media content types and second audio objects corresponding to a second media content type of the two consecutive media content types, and audio metadata corresponding to the audio content. The audio metadata including first and second audio object gains, for the first and second audio objects, generated in part based on a first fading curve of the first media content type and a second fading curve of the second media content type, respectively. The technique further includes applying the first and second audio object gains to the first and second audio objects, and rendering a sound field represented by the first audio object with the applied first audio object gain and the second audio object with the applied second audio object gain.