Apparatus and method for generating a multi-channel synthesizer control signal, multi-channel synthesizer, method of generating an output signal from an input signal and machine-readable storage medium

US8532999B2 · kind B2 · utility

Assignees

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US
• Dolby International AB · IE
• KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

• Matthias Neusinger · Meiningen, DE
• Juergen Herre · Erlangen, DE
• Sascha Disch · Bad Mergentheim, DE
• Heiko Purnhagen · Sundbyberg, SE
• Kristofer Kjoerling · Solna, SE
• Jonas Engdegard · Stockholm, SE
• Jeroen Breebaart · Eindhoven, NL
• Erik Gosuinus Petrus Schuijers · Eindhoven, NL
• Werner Oomen · Eindhoven, NL

Key dates

• Filing date: Jun 13, 2011
• Grant date: Sep 10, 2013
• Expiry date: Aug 21, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G10L2019/0012
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An apparatus and a method for generating a multi-channel synthesizer control signal, a multi-channel synthesizer, a method of generating an output signal from an input signal and a machine-readable storage medium are provided. On an encoder-side, a multi-channel input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel synthesis for smoothing quantized transmitted parameters or values derived from the quantized transmitted parameters for providing an improved subjective audio quality in particular for slowly moving point sources and rapidly moving point sources having tonal material such as fast moving sinusoids.