Patent SG-11202000287R-A (SG)
Title: Concept for generating an enhanced sound-field description or a modified sound field description using a depth-extended dirac technique or other techniques
Inventor: HERRE JÜRGEN
IPC: G06F3/01
Filed: 2018-07-13
Abstract: International Patent Classification: G10L 19/008 (2013.01) G06F 3/01 (2006.01) H04S 7/00 (2006.01) GlOL 21/0272 (2013.01) (21) International Application Number: PCT/EP2018/069147 (22) International Filing Date: (25) Filing Language: (26) Publication Language: (30) Priority Data: 17181481.7 14 July 2017 (14.07.2017) EP (71) Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE/DE]; HansastraBe 27c, 80686 Miinchen (DE). FRIEDRICH-ALEXANDER-UNIVERSITAET 13 July 2018 (13.07.2018) English English ERLANGEN-NUERNBERG [DE/DE]; Schlossplatz 4, 91054 Erlangen (DE). (72) Inventors: HERRE, Jurgen; Rathsberger Str. 10a, 91054 Erlangen (DE). HABETS, Emanuel; SchwedenstraBe 13, 91080 Spardorf (DE). (74) Agent: ZINKLER, Franz et al.; Schoppe, Zimmermann, Stockeler, Zinkler, Schenk & Partner mbB, Radlkoferstr. 2, 81373 Miinchen (DE). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (54) Title: CONCEPT FOR GENERATING AN ENHANCED SOUND-FIELD DESCRIPTION OR A MODIFIED SOUND FIELD DESCRIPTION USING A DEPTH-EXTENDED DIRAC TECHNIQUE OR OTHER TECHNIQUES 200 w 210 DiFF real or sound field (DirAC) 1.• x y DoA virtual microphone z analyzer/ downmixer 120 110 downmix mono/ stereo DoA DiFF • meta data generator combiner (output interface) ► depth map if diff > thresh. then distance = N.A. or distance= predet. value (such as HIGH, INF., ...) enhanced sound field description Fig. 2 (57) : An apparatus for generating an enhanced sound field description comprises: a sound field generator (100) for generating at least one sound field description indicating a sound field with respect to at least one reference location; and a meta data generator (110) for generating meta data relating to spatial information of the sound field, wherein the at least one sound field description and the meta data constitute the enhanced sound field description. The meta data can be a depth map associating a distance information to a direction in a full band or a subband, i.e., a time frequency bin. (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) vitivio VIII 00 los Oil OH om nava Hs (19) World Intellectual Property Organization International Bureau (10) International Publication Number WO 2019/012135 Al (43) International Publication Date 17 January 2019 (17.01.2019) WIPO I PCT [Continued on next page] WO 2019/012135 Al MIDEDIMOMOIDEIROMOIONEEHOHOMMODEVOIMIE SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))