Global Patent Index - EP 3182723 A1

EP 3182723 A1 20170621 - AUDIO SIGNAL DISTRIBUTION

Title (en)

AUDIO SIGNAL DISTRIBUTION

Title (de)

AUDIOSIGNALVERTEILUNG

Title (fr)

DISTRIBUTION DE SIGNAUX AUDIO

Publication

EP 3182723 A1 20170621 (EN)

Application

EP 15200450 A 20151216

Priority

EP 15200450 A 20151216

Abstract (en)

An audio signal distribution system and method comprise receiving an audio source signal (X L (jÉ), X R (jÉ)) to be reproduced by a loudspeaker (104, 105) disposed at a first position; providing to the loudspeaker a loudspeaker signal that represents the audio source signal (X L (jÉ), X R (jÉ)) to be reproduced by the loudspeaker (104, 105); and providing to two speakers (107, 108) of a headphone, disposed at a second position and a third position, two headphone signals (S L (jÉ) [+Y L (jÉ)] , S R (jÉ) [+Y R (jÉ)]) which comprise the loudspeaker signals filtered with electrical domain transfer functions (C LL , C LR , C RL , C RR ). The electrical domain transfer functions are configured to model acoustic domain transfer functions (H LL , H LR , H RL , H RR ) representing the acoustic paths between the first position and each of the second position and third position so that at the second position and third position sound acoustically broadcasted by the loudspeaker (104, 105) is reduced or cancelled by sound broadcasted by the respective speaker (107, 108) of the headphone.

IPC 8 full level

H04R 1/10 (2006.01); G10K 11/175 (2006.01)

CPC (source: EP US)

G10K 11/17813 (2017.12 - EP US); H04R 1/1083 (2013.01 - EP US); G10K 2210/12 (2013.01 - EP); G10K 2210/1282 (2013.01 - EP); G10K 2210/3055 (2013.01 - EP); H04R 2460/01 (2013.01 - EP)

Citation (search report)

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3182723 A1 20170621

DOCDB simple family (application)

EP 15200450 A 20151216