EP 1992198 A2 20081119 - OPTIMIZATION OF BINAURAL SOUND SPATIALIZATION BASED ON MULTICHANNEL ENCODING
Title (en)
OPTIMIZATION OF BINAURAL SOUND SPATIALIZATION BASED ON MULTICHANNEL ENCODING
Title (de)
OPTIMIERUNG DES BINAURALEN RAUMKLANGEFFEKTES DURCH MEHRKANALKODIERUNG
Title (fr)
OPTIMISATION D'UNE SPATIALISATION SONORE BINAURALE A PARTIR D'UN ENCODAGE MULTICANAL
Publication
Application
Priority
- FR 2007050867 W 20070301
- FR 0602098 A 20060309
Abstract (en)
[origin: WO2007101958A2] The invention concerns sound spatialization with multichannel encoding for binaural reproduction on two loudspeakers, the spatial encoding being defined by encoding functions associated with multiple encoding channels and the decoding by applying filters for binaural reproduction. The invention provides for an optimization as follows: a) obtaining a original set of acoustic transfer functions particular to an individual's morphology (HRIR;HRTF), b) selecting spatial encoding functions ( g(?, ?,n) ) and/or decoding filters ( F(t,n) ), and c) through successive iterations, optimizing the filters associated with the selected encoding functions or the encoding functions associated with the selected filters, or jointly the selected filters and encoding functions, by minimizing an error (c(HRIR,HRIR*)) calculated based on a comparison between: the original set of transfer functions (HRIR), and a set of reconstructed transfer functions (HRIR*) from encoding functions and decoding filters, whether optimized and/or selected.
IPC 8 full level
CPC (source: EP US)
H04S 1/00 (2013.01 - EP US); H04S 1/002 (2013.01 - US); H04S 5/00 (2013.01 - US); H04S 2420/01 (2013.01 - EP US)
Citation (search report)
See references of WO 2007101958A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007101958 A2 20070913; WO 2007101958 A3 20071101; EP 1992198 A2 20081119; EP 1992198 B1 20160720; US 2009067636 A1 20090312; US 9215544 B2 20151215
DOCDB simple family (application)
FR 2007050867 W 20070301; EP 07731684 A 20070301; US 22484007 A 20070301