Global Patent Index - EP 2901717 B1

EP 2901717 B1 20161026 - METHOD AND DEVICE FOR GENERATING AUDIO SIGNALS TO BE DELIVERED TO A SOUND REPRODUCTION SYSTEM

Title (en)

METHOD AND DEVICE FOR GENERATING AUDIO SIGNALS TO BE DELIVERED TO A SOUND REPRODUCTION SYSTEM

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ERZEUGUNG VON TONSIGNALEN ZUR LIEFERUNG AN EIN SCHALLWIEDERGABESYSTEM

Title (fr)

PROCEDE ET DISPOSITIF DE GENERATION DE SIGNAUX AUDIO DESTINES A ETRE FOURNIS A UN SYSTEME DE RESTITUTION SONORE

Publication

EP 2901717 B1 20161026 (FR)

Application

EP 13779301 A 20130925

Priority

  • FR 1259126 A 20120927
  • FR 2013052256 W 20130925

Abstract (en)

[origin: WO2014049268A1] The invention relates to a method for generating audio signals, from an input audio signal, to be delivered to a sound reproduction system comprising a first set of loud-speakers at a reference height, and a second set of loud-speakers at a higher height than the reference height, that are vertically more directive than the loud-speakers of the first set. Said method comprises: the identification of a position of at least one sound object of the input audio signal; the generation of first audio signals for feeding the first set, by applying, to the input audio signal, at least one delay and/or a gain and a sound spatialisation technique taking into account the identified position and a position of the loud-speakers of the first set; and the generation of second audio signals for feeding the second set, by applying, to the input audio signal, at least one delay and/or a gain and a sound spatialisation technique taking into account the identified position and a position of the loud-speakers of the second set; at least one sound spatialisation technique being a holophonic technique and the delays and/or gains being selected in such a way that the combination of the first signals restituted by the first set and the second signals restituted by the second set verifies a defined sound restitution effect at at least one reference spatial position.

IPC 8 full level

H04R 27/00 (2006.01); H04S 3/00 (2006.01)

CPC (source: EP)

H04R 27/00 (2013.01); H04S 3/002 (2013.01); H04R 1/323 (2013.01); H04R 2201/401 (2013.01); H04R 2201/405 (2013.01)

Citation (opposition)

Opponent : Stefanie Kremer

  • DE 102004057500 B3 20060614 - FRAUNHOFER GES FORSCHUNG [DE]
  • EP 2056621 A2 20090506 - YAMAHA CORP [JP]
  • FOTO VON DER SEEBÜHNE IRGENDWANN, January 2005 (2005-01-01)
  • VERÖFFENTLICHUNG UNTER DEM LINK, January 2005 (2005-01-01), Retrieved from the Internet <URL:http://www.resy.waldsoft.at/page _pool/200404812458/datacenter/Breqenzer Festspiele 2005.pdf>
  • "Presseinformation Bregenzer Festspiele setzen auf Audiotechnologie aus Thuri ngen", FRAUNHOFER, 22 July 2011 (2011-07-22), XP055600582
  • G. KONECNY: "Der Troubadour in Bregenz - Neues Beschallungskonzept für die Seebühne", PROSPECT THEATER, October 2005 (2005-10-01), pages 6 - 9, XP055600591
  • "Benutzerhandbuch CA 408P2", KLING & FREITAG SOUND SYSTEMS, January 2004 (2004-01-01), pages 1 - 10, XP055600599
  • "4892 Compact Two-way Loudspeaker System", JBL PROFESSIONAL, October 1996 (1996-10-01), XP055600600
  • R. RODIGAST: "A new Method for Sound Production and Reinforcement in Planetari- um", IPS 2008, Chicago, pages 220 - 222, XP055303696
  • R. RODIGAST: "Innovative Sound In Dome Theaters", IPS 2006, 24 July 2006 (2006-07-24), Melbourne, XP055600606
  • S. BRIX ET AL.: "Wafe Field Synthesis For Virtual Prototyping in VR Systems", ICED'09, Stanford, pages 1 - 9
  • G. HÖHNE ET AL.: "Virtual Prototyping of Technical Products using a New Audio Visual VR System", PROCEEDINGS OF COBEM 2007, Brasilia
  • CH. WEBER ET AL.: "Auralisation of Acoustical Product Properties for Technical Systems in Virtual Environments", 56TH IN- TERNATIONAL SCIENTIFIC COLLOQUIUM
  • E. CORTEEL ET AL.: "Practical 3 dimensional sound reproduction using Wave Field Synthe- sis, theory and perceptual validation", PROCEEDINGS OF THE ACOUSTICS 2012, Nantes, pages 901 - 906, XP055067658
  • E. CORTEEL: "Equalization in an Extended Area Using Multichannel Inversion and Wave Field Synthesis", J. AUDIO ENG. SOC., vol. 54, no. 12, December 2006 (2006-12-01), pages 1140 - 1161, XP004057980
  • "Dolby Atmos Next-Generation Audio for Cinema", WHITE PAPER
  • J.J. LOPEZ ET AL.: "Influence of the Listening Position in the Perception of Elevated Sources in Wave-Field Synthesis", AES 40TH INTERNA- TIONAL CONFERENCE, Tokyo, pages 437 - 443, XP040567110

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

FR 2996095 A1 20140328; FR 2996095 B1 20151016; EP 2901717 A1 20150805; EP 2901717 B1 20161026; EP 2901717 B2 20191225; WO 2014049268 A1 20140403

DOCDB simple family (application)

FR 1259126 A 20120927; EP 13779301 A 20130925; FR 2013052256 W 20130925