High-band residual prediction with time-domain inter-channel bandwidth extension

    公开(公告)号:AU2018291865A1

    公开(公告)日:2019-12-19

    申请号:AU2018291865

    申请日:2018-06-06

    Applicant: QUALCOMM INC

    Abstract: A method includes decoding a low-band portion of an encoded mid signal to generate a decoded low-band mid signal. The method also includes processing the decoded low-band mid signal to generate a low-band residual prediction signal and generating a low-band left channel and a low-band right channel based partially on the decoded low-band mid signal and the low-band residual prediction signal. The method further includes decoding a high-band portion of the encoded mid signal to generate a time-domain decoded high-band mid signal and processing the time-domain decoded high-band mid signal to generate a time-domain high-band residual prediction signal. The method also includes generating a high-band left channel and a high-band right channel based on the time-domain decoded high-band mid signal and the time-domain high-band residual prediction signal.

    TARGET SAMPLE GENERATION
    12.
    发明专利

    公开(公告)号:SG11201907116UA

    公开(公告)日:2019-10-30

    申请号:SG11201907116U

    申请日:2018-02-09

    Applicant: QUALCOMM INC

    Abstract: W O 20 18/ 175 0 12 Al FIG. 24 2410 ( -2412 Generate, based on the compadson, missing target samples using at least one of a reform= frame based on the reference channel or a target frame based on the modified newt channel. where the fins, signal corresponds to a portion lithe reference frame, and where the second signal ourresponds to a portion of the target frame. ( 2408 Determine a temporal correlertion value indicative of a tempond ourrelertion between a fina signal associated with the referemx channel and a wound signal associated with the modified target channel ( .2404 Identify a target channel and a .eference channel, the target channel and the reference channel identified film the two or more channels based on a mismatch value ( 2406 Caleraa a modified Ursa channel by tempondly adjusting the target channel bawd on the mismatch value. the mismatch value indicative of an amount of tumoral mismatch between the target channel and the reference channel Compare the tniaporill corre (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIP0 I PCT ill mu °mons I SID o olommoollm VIII VII VII IE (10) International Publication Number WO 2018/175012 Al (51) International Patent Classification: G10L 19/008 (2013.01) (21) International Application Number: PCT/US2018/017654 (22) International Filing Date: 09 February 2018 (09.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/474,010 20 March 2017 (20.03.2017) US 15/892,130 08 February 2018 (08.02.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: ATTI, Venkatraman; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHEBIYYAM, Venkata Subrahmanyam Chandra Sekhar; 5775 More- house Drive, San Diego, California 92121-1714 (US). (74) Agent: TOLER LAW GROUP, PC et al.; 8500 Bluffstone Cove, Suite A201, Austin, Texas 78759 (US). (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, 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)) (54) Title: TARGET SAMPLE GENERATION (57) : A method of encoding audio channels includes receiving two or more channels at an encoder and identifying a target channel and a reference channel. The target channel and the reference channel are identified from the two or more channels based on a mismatch value. The method also includes generating a modified target channel by temporally adjusting the target channel based on the mismatch value. The mismatch value is indicative of an amount of temporal mismatch between the target channel and the reference channel. The method also includes determining a temporal correlation value indicative of a temporal correlation between a first signal associated with the reference channel and a second signal associated with the modified target channel. The method also includes comparing the temporal correlation value to a threshold. The method further includes generating missing target samples based on the comparison, a coder type, or both.

    INTER-CHANNEL PHASE DIFFERENCE PARAMETER MODIFICATION

    公开(公告)号:SG11201904753WA

    公开(公告)日:2019-08-27

    申请号:SG11201904753W

    申请日:2017-12-11

    Applicant: QUALCOMM INC

    Abstract: StereoParameters (e.g., IPD Parameter Values 164, 1TD Parameter Value 166, Mismatch Value 116, etc.) / s14 118A Stereo Parameter Adju tment Unit :'12 (e g., IPD Parameter Modification L nit) Comparison Unit 314 Modification Unit 316 FIG. 3 1TD Parameter Value 166 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 26 July 2018 (26.07.2018) WIP0 I PCT omit VIII °nolo Oil ioo Imo oimIE (10) International Publication Number WO 2018/136167 Al (51) International Patent Classification: G10L 19/008 (2013.01) (21) International Application Number: PCT/US2017/065547 (22) International Filing Date: 11 December 2017 (11.12.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/448,297 19 January 2017 (19.01.2017) US 15/836,618 08 December 2017 (08.12.2017) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: ATTI, Venkatraman; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHEBIYYAM, Venkata Subrahmanyam Chandra Sekhar; 5775 More- house Drive, San Diego, California 92121-1714 (US). (74) Agent: TOLER, JEFFREY G.; 8500 Bluffstone Cove, Suite A201, Austin, Texas 78759 (US). (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, 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, (54) Title: INTER-CHANNEL PHASE DIFFERENCE PARAMETER MODIFICATION Encoded Mid Channel 340 Decoded Frequency-Domain Mid Channel 348 Frequency-Domain Left Channel 354 Time-Domain Left Channel 358 Left Channel 126 Mid Channel Decoder 302 Transform Unit 306 Inverse Transform Unit 318 Inter-Channel Alignment Unit 322 Up-Mixer 3 10 Decoded Mid Channel 344 Decoded Side Channel 346 Decoded Frequency-Domain Side Channel 350 Transform Unit 308 Frequency-Domain Right Channel 356 S Inverse Transform Unit 320 Side Channel Decoder 304 Encoded Side Channel 342 Modified IPD • Parameter Values Stereo Parameters 162 Time-Domain Right Channel 360 Right Channel 128 1-1 N 00 O C (57) : A method includes performing modifying, at a decoder, at least a portion of inter-channel phase difference (IPD) parameter values based on a mismatch value to generate modified IPD parameter values. The mismatch value is indicative of an amount of temporal misalignment between an encoder-side reference channel and an encoder-side target channel. The modified IPD parameter values are applied to a decoded frequency-domain mid channel during an up-mix operation. [Continued on next page] WO 2018/136167 Al MIDEDIM01101 DIVIIMEIDI0EMIIMEM1111111111111111101111111111 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))

    Target sample generation
    14.
    发明专利

    公开(公告)号:AU2018237285A1

    公开(公告)日:2019-08-22

    申请号:AU2018237285

    申请日:2018-02-09

    Applicant: QUALCOMM INC

    Abstract: A method of encoding audio channels includes receiving two or more channels at an encoder and identifying a target channel and a reference channel. The target channel and the reference channel are identified from the two or more channels based on a mismatch value. The method also includes generating a modified target channel by temporally adjusting the target channel based on the mismatch value. The mismatch value is indicative of an amount of temporal mismatch between the target channel and the reference channel. The method also includes determining a temporal correlation value indicative of a temporal correlation between a first signal associated with the reference channel and a second signal associated with the modified target channel. The method also includes comparing the temporal correlation value to a threshold. The method further includes generating missing target samples based on the comparison, a coder type, or both.

    Generación de señal de banda alta

    公开(公告)号:CL2017003158A1

    公开(公告)日:2018-06-01

    申请号:CL2017003158

    申请日:2017-12-11

    Applicant: QUALCOMM INC

    Abstract: DISPOSITIVO PARA PROCESAMIENTO DE SEÑAL QUE COMPRENDE UNA MEMORIA CONFIGURADA PARA ALMACENAR UN PARÁMETRO Y UN PROCESADOR CONFIGURADO PARA SELECCIONAR UNA PLURALIDAD DE FUNCIONES DE PROCESAMIENTO NO LINEAL CON BASE EN UN VALOR DEL PARÁMETRO Y GENERAR UNA SEÑAL DE EXCITACIÓN DE BANDA ALTA CON BASE EN LA PLURALIDAD DE FUNCIONES DE PROCESAMIENTO NO LINEAL; MÉTODO; DISPOSITIVO DE ALMACENAMIENTO LEGIBLE POR COMPUTADORA; APARATO.

    GENERACIÓN DE SEÑAL DE BANDA ALTA.

    公开(公告)号:MX374739B

    公开(公告)日:2025-03-04

    申请号:MX2017015416

    申请日:2017-11-29

    Applicant: QUALCOMM INC

    Abstract: Un dispositivo para procesamiento de señal incluye un receptor y un generador de señal de excitación de banda alta; el receptor está configurado para recibir un parámetro asociado con una corriente de audio de ancho de banda extendido; el generador de señal de excitación de banda alta está configurado para determinar un valor del parámetro; el generador de señal de excitación de banda alta también está configurado para seleccionar, con base en el valor del parámetro, una de la información de ganancia objetivo asociada con la corriente de audio de ancho de banda extendido o información de filtro asociada con la corriente de audio de ancho de banda extendido; el generador de señal de excitación de banda alta además está configurado para generar una señal de excitación de banda alta con base en una de la información de ganancia objetivo o la información de filtro.

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