-
公开(公告)号：AU2023363289A1
公开(公告)日：2025-04-24
申请号：AU2023363289
申请日：2023-10-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： MIYASAKA SHUJI , NAKAHASHI KOTA , ISHIKAWA TOMOKAZU , USAMI HIKARU , EHARA HIROYUKI , ENOMOTO SEIGO , YAMADA MARIKO
Abstract: A sound processing device (1001) includes a circuit (1402) and a memory (1404), wherein the circuit (1402) acquires sound space information regarding a sound space by using the memory (1404), acquires characteristics of a first sound generated from the sound source in the sound space on the basis of the sound space information, and controls whether or not to select a second sound that occurs in the sound space in response to the first sound, on the basis of the characteristics of the first sound.
-
2.发明专利
公开(公告)号：AU2023306007A1
公开(公告)日：2025-01-09
申请号：AU2023306007
申请日：2023-07-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： USAMI HIKARU , ISHIKAWA TOMOKAZU , ENOMOTO SEIGO , NAKAHASHI KOTA , EHARA HIROYUKI , YAMADA MARIKO , MIYASAKA SHUJI
Abstract: This acoustic signal processing method includes: an acquisition step for acquiring first position information that indicates the position of an object, which is a mobile entity, in a virtual space and second position information that indicates the position of a listener in the virtual space; a first calculation step for calculating the movement speed of the object on the basis of the acquired first position information; a second calculation step for calculating the distance between the object and the listener on the basis of the acquired first position information and the acquired second position information; a generation step for generating an aerodynamic sound signal on the basis of the calculated movement speed and the calculated distance, the aerodynamic sound signal indicating an aerodynamic sound generated as wind produced due to movement of the object reaches the ears of the listener; and an output step for outputting the generated aerodynamic sound signal.
-
公开(公告)号：AU2011263191B2
公开(公告)日：2016-06-16
申请号：AU2011263191
申请日：2011-06-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： ISHIKAWA TOMOKAZU , NORIMATSU TAKESHI , ZHOU HUAN , CHONG KOK SENG , ZHONG HAISHAN
IPC: G10L21/04 , G10L19/00 , G10L19/02 , G10L21/02 , G10L21/038
Abstract: Provided is a band enhancement method that can reduce the calculation amounts for enhancing bands and further can suppress the quality degradation of enhanced bands. The band enhancement method comprises the steps of: transforming a low frequency band signal to a QMF range, thereby generating a first low frequency QMF spectrum (S11); applying mutually different shift factors to the low frequency band signal, thereby generating a plurality of pitch-shifted signals (S12); performing a time decompression in the QMF range, thereby generating a high frequency QMF spectrum (S13); modifying the high frequency QMF spectrum (S14); and combining the modified high frequency QMF spectrum with the first low frequency QMF spectrum (S15).
-
公开(公告)号：AU2002343212B2
公开(公告)日：2006-03-09
申请号：AU2002343212
申请日：2002-10-29
Applicant: PANASONIC IP CORP AMERICA
Inventor： SAWADA YOSHIAKI , ISHIKAWA TOMOKAZU , MIYASAKA SHUJI
Abstract: A decoding device (30a) comprises a narrow-band decoding unit (31) operable to reproduce a PCM signal (P1) from a narrow-band bit stream included in a wide-band bit stream (S0), a wide-band decoding unit (32) operable to reproduce a PCM signal (P2) having a frequency band which is wider than that of the PCM signal (P1) reproduced by the narrow-band decoding unit (31) from the narrow-band bit stream and a band expanding bit stream included in the wide band bit stream (S0) and a selecting unit (34) operable to select either the PCM signal (P1) reproduced by the narrow-band decoding unit (31) or the PCM signal (P2) reproduced by the wide-band decoding unit (32), and to output the selected sound digital signal.
-
公开(公告)号：AU2023305247A1
公开(公告)日：2025-01-23
申请号：AU2023305247
申请日：2023-07-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： USAMI HIKARU , ISHIKAWA TOMOKAZU , ENOMOTO SEIGO , NAKAHASHI KOTA , EHARA HIROYUKI , YAMADA MARIKO , MIYASAKA SHUJI
Abstract: This acoustic signal processing method comprises: a first acquisition step for acquiring object information which includes first location information expressing the location of an object in a virtual space, first sound data expressing a first sound caused by the object, and first identification information expressing a processing means for the first sound data, and second location information which expresses the location of the listener; a first calculation step for calculating the distance between the object and the listener on the basis of the first location information included in the acquired object information, and the acquired second location information; a determination step for determining the processing means for processing the first sound data from among a first processing means for performing volume processing corresponding to the calculated distance and a second processing means for performing volume processing corresponding to a distance calculated by a method which differs from that of the first processing means, on the basis of the first identification information included in the acquired object information; a first processing step for processing the first sound data via the determined processing means; and a first output step for outputting the processed first sound data.
-
Patent Agency Ranking
公开(公告)号：MY176904A
公开(公告)日：2020-08-26
申请号：MYPI2012000521
申请日：2011-06-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： ISHIKAWA TOMOKAZU , NORIMATSU TAKESHI , ZHOU HUAN , CHONG KOK SENG , ZHONG HAISHAN
IPC: G10L21/038 , G10L21/04
Abstract: To provide a bandwidth extension method which allows reduction of computation amount in bandwidth extension and suppression of deterioration of quality in the bandwidth to be extended. In the bandwidth extension method: a low frequency bandwidth signal is transformed into a QMF domain to generate a first low frequency QMF spectrum (S11); pitch-shifted signals are generated by applying different shifting factors on the low frequency bandwidth signal (S12); a high frequency QMF spectrum is generated by time-stretching the pitch-shifted signals in the QMF domain (S13); the high frequency QMF spectrum is modified (S14); and the modified high frequency QMF spectrum is combined with the first low frequency QMF spectrum (S15).
-
公开(公告)号：HUE028738T2
公开(公告)日：2017-01-30
申请号：HUE11792129
申请日：2011-06-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： ISHIKAWA TOMOKAZU , NORIMATSU TAKESHI , ZHOU HUAN , CHONG KOK SENG , ZHONG HAISHAN
IPC: G10L21/038 , G10L21/04
-
公开(公告)号：PL2581905T3
公开(公告)日：2016-06-30
申请号：PL11792129
申请日：2011-06-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： ISHIKAWA TOMOKAZU , NORIMATSU TAKESHI , ZHOU HUAN , CHONG KOK SENG , ZHONG HAISHAN
IPC: G10L21/038 , G10L21/04
-
公开(公告)号：ES2565959T3
公开(公告)日：2016-04-07
申请号：ES11792129
申请日：2011-06-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： ISHIKAWA TOMOKAZU , NORIMATSU TAKESHI , ZHOU HUAN , CHONG KOK SENG , ZHONG HAISHAN
IPC: G10L21/038 , G10L21/04
Abstract: Un metodo de extension del ancho de banda para la produccion de una senal de audio de ancho de banda completo a partir de una senal de audio de ancho de banda en baja frecuencia, comprendiendo dicho metodo: una primera etapa de transformada (S21) de la transformacion de la senal de ancho de banda en baja frecuencia en un dominio en el banco de filtros de espejo en cuadratura (QMF) para generar un primer espectro QMF de baja frecuencia; una etapa de generacion de un parche armonico de orden bajo (S22) de la generacion de un parche armonico de orden bajo mediante estiramiento en el tiempo de la senal de ancho de banda en baja frecuencia en un dominio QMF; una etapa de generacion de alta frecuencia (S23) de (i) generacion de senales que estan desplazadas en el tono, mediante la aplicacion de diferentes coeficientes de desplazamiento al parche armonico de orden bajo, y (ii) generacion de un espectro QMF de alta frecuencia a partir de las senales; una etapa de modificacion de espectro (S24) de modificacion del espectro QMF de alta frecuencia para satisfacer las condiciones de energia y tonalidad de alta frecuencia; y una etapa de generacion de ancho de banda completo (S25) de la generacion de la senal en ancho de banda completo mediante la combinacion del espectro QMF de alta frecuencia modificado con el primer espectro QMF de baja frecuencia.
-
10.发明专利
公开(公告)号：ZA201200919B
公开(公告)日：2013-07-31
申请号：ZA201200919
申请日：2012-02-07
Applicant: PANASONIC IP CORP AMERICA
Inventor： ISHIKAWA TOMOKAZU , ZHOU HUAN , ZHONG HAISHAN , NORIMATSU TAKESHI , CHONG KOK SENG
IPC: G01L20060101 , G10L21/038 , G10L21/04
Abstract: To provide a bandwidth extension method which allows reduction of computation amount in bandwidth extension and suppression of deterioration of quality in the bandwidth to be extended. In the bandwidth extension method: a low frequency bandwidth signal is transformed into a QMF domain to generate a first low frequency QMF spectrum (S11); pitch-shifted signals are generated by applying different shifting factors on the low frequency bandwidth signal (S12); a high frequency QMF spectrum is generated by time-stretching the pitch-shifted signals in the QMF domain (S13); the high frequency QMF spectrum is modified (S14); and the modified high frequency QMF spectrum is combined with the first low frequency QMF spectrum (S15).
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.025 seconds)
