METADATA FOR LOUDNESS AND DYNAMIC RANGE CONTROL

WIPO Patent Application WO/2014/160849

A3

An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.

WO/2017/142916	DIFFUSIVITY BASED SOUND PROCESSING METHOD AND APPARATUS
WO/2017/148526	AUDIO SIGNAL ENCODER, AUDIO SIGNAL DECODER, METHOD FOR ENCODING AND METHOD FOR DECODING
JP4602375	A computer program for executing a coding device, a coding method, a decoder, a decoding method, and a coding method or a decoding method for encoding a stereo signal.

BAUMGARTE FRANK (US)
ALLAMANCHE ERIC A (US)
STROMMER STEFAN K O (US)

PCT/US2014/031992

November 27, 2014

March 27, 2014

Click for automatic bibliography generation  

APPLE INC (US)

G10L19/008; G10L21/0316; H03G7/00

US20110038490A1

2011-02-17

"A Guide to Dolby Metadata", 1 January 2005 (2005-01-01), pages 1 - 28, XP055102178, Retrieved from the Internet [retrieved on 20140214]
"Specification of the Broadcast Wave Format; a format for audio data files - Supplement 6 : Dolby Metadata chunk - EBU - TECH 3285 suppl.6", 1 October 2009 (2009-10-01), XP055105526, Retrieved from the Internet [retrieved on 20140305]
"Recommendation ITU-R BS.1770-1 Algorithm to measure audio programme loudness and true-peak audio level", 1 January 2006 (2006-01-01), geneva, pages 1 - 19, XP055000132, Retrieved from the Internet [retrieved on 20110527]

SCHELLER, James C. et al. (1279 Oakmead ParkwaySunnyvale, California, US)

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