Decoder, encoder and method for informed loudness estimation employing by-pass audio object signals in object-based audio coding systems

US9947325B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Jouni Paulus · Nuremberg, DE
• Sascha Disch · Bad Mergentheim, DE
• Harald Fuchs · Eisenberg (Pfalz), DE
• Bernhard Grill · Lautenbächle, DE
• Oliver Hellmuth · Erlangen, DE
• Adrian Murtaza · Craiova, RO
• Falko Ridderbusch · Erlangen, DE
• Leon Terentiv · Erlangen, DE

Key dates

• Filing date: Aug 10, 2015
• Grant date: Apr 17, 2018
• Expiry date: Dec 7, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03G3/20
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A decoder for generating an audio output signal having one or more audio output channels is provided, having a receiving interface for receiving an audio input signal having a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated, further having a signal processor for generating the one or more audio output channels of the audio output signal, configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information, and configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. One or more by-pass audio object signals are employed for generating the audio output signal. Moreover, an encoder is provided.