Patent SG-11201906367P-A (SG)
Title: Audio decoder, audio encoder, method for providing a decoded audio signal, method for providing an encoded audio signal, audio stream, audio stream provider and computer program using a stream identifier
Inventor: NEUENDORF MAX
IPC: G10L19/22
Filed: 2018-01-10
Abstract: decoded audio signal representatioLl 112 audio decoder r 100 encoded audio signal representation (for example, audio stream comprising sequence of USAC frames) 150 110a configuration information including stream identifier (e.g. from configuration structure) (e.g. associated with one or more frames to be decoded) current configuration information (includir g stream identifier) for adjustment of decoding parameters and re-initialization decoder core comparison (at least relevant portion ) decision about usage of new configuration information/ reconfiguration 130 4- 140 -J Hg. (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 19 July 2018 (19.07.2018) WIPO I PCT ill~~~~~~~~ 011101010VIIIOH olo o1111 moon Imo oimIE (10) International Publication Number WO 2018/130577 Al (51) International Patent Classification: G1OL 19/16 (2013.01) G1OL 19/22 (2013.01) (21) International Application Number: PCT/EP2018/050575 (22) International Filing Date: 10 January 2018 (10.01.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 17150915.1 10 January 2017 (10.01.2017) EP 17151083.7 11 January 2017 (11.01.2017) EP (71) Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE/DE]; HansastraBe 27c, 80686 Miinchen (DE). (72) Inventors: NEUENDORF, Max; Kulmbacher Str. 5A, 90411 Niimberg (DE). FELIX, Matthias; Paul-Gossen- Str. 107, 91052 Erlangen (DE) HILDENBRAND, Matthias; An der WeiBen Marter 20, 91056 Erlangen (DE). SCHUSTER, Lukas; Schammelsdorfer Str. 9, 96123 Litzendorf (DE). HOFMANN, Ingo; Campestr. 21, 90419 Niirnberg (DE). HERRMANN, Bernd; KeuperstraBe 13, 91056 Erlangen (DE). RETTELBACH, Nikolaus; Spes- sartstr. 38, 90427 Niimberg (DE). (74) Agent: BURGER, Markus 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, (54) Title: AUDIO DECODER, AUDIO ENCODER, METHOD FOR PROVIDING A DECODED AUDIO SIGNAL, METHOD FOR PROVIDING AN ENCODED AUDIO SIGNAL, AUDIO STREAM, AUDIO STREAM PROVIDER AND COMPUTER PROGRAM = USING A STREAM IDENTIFIER N N O 00 O C (57) : An audio decoder for providing a decoded audio signal representation on the basis of an encoded audio signal represen- tation is configured to adjust decoding parameters in dependence on a configuration information and is also configured to decode one or more audio frames using a current configuration information. The audio decoder is configured to compare a configuration information in a configuration structure associated with one or more frames to be decoded by the current configuration information, and to make a transition to perform a decoding using the configuration information in the configuration structure associated with the one or more frames to be decoded as a new configuration information if the configuration information in the configuration structure associated with the one or more frames to be decoded, or a relevant portion of the configuration information in the configuration structure associated [Continued on next page] WO 2018/130577 Al MIDEDIMOMOIDEIREEMOMMIMMEHRHOIMI 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, 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)) with the one or more frames to be decoded, is different from the current configuration information. The audio decoder is configured to consider a stream identifier information included in the configuration structure when comparing the configuration information, such that a difference between a stream identifier previously acquired by the audio decoder and a stream identifier represented by the stream identifier information in the configuration structure associated with the one or more frames to be decoded causes to make the transition.