Schutz vor Signalabschneidung unter Verwendung Bereits Vorhandener Audioverstärkungsmetadaten

Details

Veröffentlichungs-Nr.

EP4730328

Anmeldetag

26. Oktober 2009

Veröffentlichung

22. April 2026

Rechtsraum

EP

IPC

G10L19/008, G10L19/16G10L19/16(LG ELECTRONICS INC et al.)

Abstract

The application describes a method and an apparatus to prevent clipping of an audio signal when protection against signal clipping by received audio metadata is not guaranteed. The method may be used to prevent clipping for the case of downmixing a multichannel signal to a stereo audio signal. According to the method, it is determined whether first gain values (4) based on received audio metadata are sufficient for protection against clipping of the audio signal. The audio metadata is embedded in a first audio stream (1). In case a first gain value (4) is not sufficient for protection, the respective first gain value (4) is replaced with a gain value sufficient for protection against clipping of the audio signal. Preferably, in case no metadata related to dynamic range control is present in the first audio stream (1), the method may add gain values sufficient for protection against signal clipping.

Anmelder

Firma

Dolby International AB

Land

🇮🇪 Irland