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公开(公告)号:MY176152A
公开(公告)日:2020-07-24
申请号:MYPI2015702381
申请日:2013-09-03
Applicant: QUALCOMM INC
Inventor: KRISHNAN VENKATESH , RAJENDRAN VIVEK , SUBASINGHA SUBASINGHA SHAMINDA
Abstract: A method (1300) for mitigating potential frame instability by an electronic device (1237, 1937) is described. The method includes obtaining (1302) a frame subsequent in time to an erased frame. The method also includes determining (1304) whether the frame is potentially unstable. The method further includes applying (1306) a substitute weighting value to generate a stable frame parameter if the frame is potentially unstable.
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公开(公告)号:CA2952214C
公开(公告)日:2020-06-16
申请号:CA2952214
申请日:2015-06-05
Applicant: QUALCOMM INC
Inventor: ATTI VENKATRAMAN S , KRISHNAN VENKATESH , RAJENDRAN VIVEK , CHEBIYYAM VENKATA SUBRAHMANYAM CHANDRA SEKHAR , SUBASINGHA SUBASINGHA SHAMINDA
Abstract: The present disclosure provides techniques for adjusting a temporal gain parameter and for adjusting linear prediction coefficients. A value of the temporal gain parameter may be based on a comparison of a synthesized high-band portion of an audio signal to a high-band portion of the audio signal. If a signal characteristic of an upper frequency range of the high-band portion satisfies a first threshold, the temporal gain parameter may be adjusted. A linear prediction (LP) gain may be determined based on an LP gain operation that uses a first value for an LP order. The LP gain may be associated with an energy level of an LP synthesis filter. The LP order may be reduced if the LP gain satisfies a second threshold.
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公开(公告)号:PL3105757T3
公开(公告)日:2020-05-18
申请号:PL15706610
申请日:2015-02-10
Applicant: QUALCOMM INC
Inventor: SUBASINGHA SUBASINGHA SHAMINDA , KRISHNAN VENKATESH , ATTI VENKATRAMAN S , RAJENDRAN VIVEK
IPC: G10L21/038
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公开(公告)号:HUE045263T2
公开(公告)日:2019-12-30
申请号:HUE13763383
申请日:2013-09-03
Applicant: QUALCOMM INC
Inventor: SUBASINGHA SUBASINGHA SHAMINDA , RAJENDRAN VIVEK , KRISHNAN VENKATESH , ATTI VENKATRAMAN SRINIVASA
IPC: G10L19/24
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公开(公告)号:AU2016244807B2
公开(公告)日:2019-07-18
申请号:AU2016244807
申请日:2016-03-30
Applicant: QUALCOMM INC
Inventor: ATTI VENKATRAMAN S , CHEBIYYAM VENKATA SUBRAHMANYAM CHANDRA SEKHAR , RAJENDRAN VIVEK , SUBASINGHA SUBASINGHA SHAMINDA
Abstract: A device includes a first classifier and a second classifier coupled to the first classifier. The first classifier is configured to output first decision data that indicates a classification of an audio frame as a speech frame or a non-speech frame, the first decision data determined based on first probability data associated with a first likelihood of the audio frame being the speech frame and based on second probability data associated with a second likelihood of the audio frame being the non-speech frame. The second classifier is configured to output second decision data based on the first probability data, the second probability data, and the first decision data, the second decision data includes an indication of a selection of a particular encoder of multiple encoders available to encode the audio frame.
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公开(公告)号:CA2897938C
公开(公告)日:2019-05-28
申请号:CA2897938
申请日:2013-09-03
Applicant: QUALCOMM INC
Inventor: SUBASINGHA SUBASINGHA SHAMINDA , KRISHNAN VENKATESH , RAJENDRAN VIVEK
IPC: G10L19/005 , G10L19/07
Abstract: A method for mitigating potential frame instability by an electronic device is described. The method includes obtaining a frame subsequent in time to an erased frame. The method also includes determining whether the frame is potentially unstable. The method further includes applying a substitute weighting value to generate a stable frame parameter if the frame is potentially unstable.
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公开(公告)号:SI2959478T1
公开(公告)日:2019-02-28
申请号:SI201331312
申请日:2013-09-03
Applicant: QUALCOMM INC
Inventor: SUBASINGHA SUBASINGHA SHAMINDA , KRISHNAN VENKATESH , RAJENDRAN VIVEK
IPC: G10L19/00
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公开(公告)号:ES2690252T3
公开(公告)日:2018-11-20
申请号:ES15731780
申请日:2015-06-05
Applicant: QUALCOMM INC
Inventor: ATTI VENKATRAMAN S , KRISHNAN VENKATESH , RAJENDRAN VIVEK , CHEBIYYAM VENKATA SUBRAHMANYAM CHANDRA SEKHAR , SUBASINGHA SUBASINGHA SHAMINDA
IPC: G10L21/038 , G10L19/02 , G10L19/06 , G10L19/24
Abstract: Un procedimiento que comprende: determinar, en un codificador, una suma de valores de energía correspondientes a salidas de un banco de filtros de análisis, con la suma de valores de energía correspondientes a un rango de frecuencias superior de una parte de banda alta de una señal de audio; realizar una operación de promedio basada en la suma de valores de energía para determinar una característica de señal; determinar, en el codificador, si la característica de señal satisface un umbral; generar una señal de excitación de banda alta correspondiente a la parte de banda alta; generar una parte de banda alta sintetizada basada en la señal de excitación de banda alta; determinar un valor de un parámetro de ganancia temporal basado en una comparación de la parte de banda alta sintetizada con la parte de banda alta; y en respuesta a la característica de señal que satisface el umbral, ajustar el valor del parámetro de ganancia temporal, en el que el ajuste del valor del parámetro de ganancia temporal controla una variabilidad del parámetro de ganancia temporal.
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公开(公告)号:ES2690251T3
公开(公告)日:2018-11-20
申请号:ES15729725
申请日:2015-06-05
Applicant: QUALCOMM INC
Inventor: ATTI VENKATRAMAN S , KRISHNAN VENKATESH , RAJENDRAN VIVEK , CHEBIYYAM VENKATA SUBRAHMANYAM CHANDRA SEKHAR , SUBASINGHA SUBASINGHA SHAMINDA
IPC: G10L19/06 , G10L19/02 , G10L19/24 , G10L21/038
Abstract: Un procedimiento (540) de codificación de una señal de audio, comprendiendo el procedimiento el ajuste de coeficientes de predicción lineales, LPC, de un codificador de señales de audio, en el que el ajuste de LPC del codificador comprende: determinar (542), en el codificador, una ganancia de predicción lineal, LP, en base a una operación de ganancia LP que usa un primer valor para un orden LP, la ganancia LP asociada con un nivel de energía de un filtro de síntesis LP; comparar (544) la ganancia LP con un umbral; y reducir (546) el orden LP del primer valor a un segundo valor si la ganancia LP es mayor que el umbral.
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