Patent SG-11201805008Y-A (SG)
Title: Apparatus and method for processing an encoded audio signal
Inventor: NIEDERMEIER ANDREAS
IPC: G10L19/16
Filed: 2016-12-08
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 1111111101111011101010111110101111101110101101011111011001101111101111011111 International Bureau 0.. .1 j ..... ..or::,„, (10) International Publication Number (43) International Publication Date WO 2017/102560 Al 22 June 2017(22.06.2017) WIPO I PCT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every G1OL 19/16 (2013.01) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, (21) International Application Number: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, PCT/EP2016/080331 DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (22) International Filing Date: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, 8 December 2016 (08.12.2016) KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (25) Filing Language: English NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (26) Publication Language: English RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, (30) Priority Data: ZA, ZM, ZW. 15199851.5 14 December 2015 (14.12.2015) EP (84) Designated States (unless otherwise indicated, for every (71) Applicant: FRAUNHOFER-GESELLSCHAFT ZUR kind of regional protection available): ARIPO (BW, GH, FORDERUNG DER ANGEWANDTEN FORSCHUNG GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, E.V. [DE/DE]; HansastraBe 27c, 80686 Miinchen (DE). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (72) Inventors: NIEDERMEIER, Andreas; Ungererstr. 80, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 80805 Munchen (DE). DISCH, Sascha; Wilhelmstrasse DK, EE, ES, FL FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, 70, 90766 Furth (DE). 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, (74) Agents: ZINKLER, Franz et al.; Schoppe, Zimmermann, GW, KM, ML, MR, NE, SN, TD, TG). Stockeler, Zinkler, Schenk & Partner mbB, Radlkoferstr.2, Published: 81373 Miinchen (DE). — with international search report (Art. 21(3)) Title: APPARATUS AND METHOD FOR PROCESSING AN ENCODED AUDIO SIGNAL = (54) , 100 (/ ? 1 101 AUO,AU1,412 0. CSO, CS1, CS 2 0. demultiplexer upsampler 103, 103' PO, US1, US2, 102 --- N,„ P1, P2 US3, US4, US5, US6 cPO, cP1, cP2 0- ------ 4 parameter converter spect al gap tilling processor / 104 output signal 3 (e g. decoded time signal or transcoded signal) Il FIG 14 0 In (57) : The invention refers to an apparatus for processing an encoded audio signal (100). The audio signal (100) comprises S•1 a sequence of access units (100'), each access unit comprising a core signal (101) with a first spectral width and parameters describ - 411P. ing a spectrum above the first spectral width. The apparatus comprises: a demultiplexer (1) for generating, from an access unit (100') 1-1 ----. of the encoded audio signal (100), said core signal (101 ) and a set of said parameters (102), an upsampler (2) for upsampling said I-1 core signal (101 ) of said access unit (100') and outputting a first upsampled spectrum (103) and a timely consecutive second up - O sampled spectrum (103'), the first upsampled spectrum (103) and the second upsampled spectrum (103'), both, having a same con - ei tent as the core signal (101 ) and having a second spectral width being greater than the first spectral width of the core spectrum en. ) (101), a parameter converter (3) for converting parameters of said set of parameters (102) of said access unit (100') to obtain conver- ted parameters (104, 104'), and a spectral gap filling processor (4) for processing said first upsampled spectrum (103) and said second upsampled spectrum (103') using said converted parameters (104). The invention also refers to a corresponding method.