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    ACOUSTIC SIGNAL PROCESSING METHOD, COMPUTER PROGRAM, AND ACOUSTIC SIGNAL PROCESSING DEVICE
    4.
    发明专利
    ACOUSTIC SIGNAL PROCESSING METHOD, COMPUTER PROGRAM, AND ACOUSTIC SIGNAL PROCESSING DEVICE 未知

    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

    IPC: H04S7/00 ,  H04R3/00

    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.

    Acoustic signal encoding device, acoustic signal decoding device, method for encoding acoustic signal, and method for decoding acoustic signal
    5.
    发明专利
    Acoustic signal encoding device, acoustic signal decoding device, method for encoding acoustic signal, and method for decoding acoustic signal 未知

    公开(公告)号：AU2015291897A1

    公开(公告)日：2017-03-09

    申请号：AU2015291897

    申请日：2015-07-03

    Applicant: PANASONIC IP CORP AMERICA

    Inventor： KAWASHIMA TAKUYA ,  EHARA HIROYUKI

    IPC: G10L19/035 ,  G10L19/02

    Abstract: An acoustic signal encoding device (100) comprises: a time-frequency convertor (101) for outputting a sub-band spectrum from an input signal; a sub-band energy quantization unit (102); a tonality calculation unit (103) for analyzing the tonal characteristics of the sub-band spectrum; a bit distributor (104) for selecting a second sub-band to be quantized at a second quantization unit and determining a first bit number distributed to a first sub-band to be quantized at a first quantization unit on the basis of the result of analyzing the tonal characteristics and a quantized sub-band energy; the first quantization unit (106) for encoding using bits having the first bit number; the second quantization unit (107) for encoding using a pitch filter; and a multiplexer (108).

    AUDIO SIGNAL CODING APPARATUS, AUDIO SIGNAL DECODING APPARATUS, AUDIO SIGNAL CODING METHOD, AND AUDIO SIGNAL DECODING METHOD
    7.
    发明专利
    AUDIO SIGNAL CODING APPARATUS, AUDIO SIGNAL DECODING APPARATUS, AUDIO SIGNAL CODING METHOD, AND AUDIO SIGNAL DECODING METHOD 未知

    公开(公告)号：CA2958429C

    公开(公告)日：2020-03-10

    申请号：CA2958429

    申请日：2015-07-03

    Applicant: PANASONIC IP CORP AMERICA

    Inventor： KAWASHIMA TAKUYA ,  EHARA HIROYUKI

    IPC: G10L19/035 ,  G10L19/02

    Abstract: An audio signal coding apparatus (100) includes a time-frequency transformer (101) that outputs sub-band spectra from an input signal, a sub-band energy quantizer (102), a tonality calculator (103) that analyzes tonality of the sub-band spectra, a bit allocator (104) that selects a second sub-band on which quantization is performed by a second quantizer on the basis of the analysis result of the tonality and quantized sub-band energy, and determines a first number of bits to be allocated to a first sub-band on which quantization is performed by a first quantizer, the first quantizer (106) that performs coding using the first number of bits, the second quantizer (107) that performs coding using a pitch filter, and a multiplexer (108).

    ACOUSTIC SIGNAL PROCESSING METHOD, INFORMATION GENERATION METHOD, COMPUTER PROGRAM AND ACOUSTIC SIGNAL PROCESSING DEVICE
    8.
    发明专利
    ACOUSTIC SIGNAL PROCESSING METHOD, INFORMATION GENERATION METHOD, COMPUTER PROGRAM AND ACOUSTIC SIGNAL PROCESSING DEVICE 未知

    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

    IPC: H04S7/00 ,  H04R3/00

    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.

    Terminal de comunicación y procedimiento de comunicación
    9.
    发明专利
    Terminal de comunicación y procedimiento de comunicación 未知

    公开(公告)号：ES2812123T3

    公开(公告)日：2021-03-16

    申请号：ES16193870

    申请日：2012-05-25

    Applicant: PANASONIC IP CORP AMERICA

    Inventor： HORI TAKAKO ,  EHARA HIROYUKI

    IPC: H04W36/00 ,  H04W76/22 ,  H04W88/18

    Abstract: Un aparato (100, 102) terminal de comunicación, que comprende: un negociador (704) adaptado para negociar un códec usado para comunicación entre el aparato (100, 102) terminal de comunicación y un terminal homólogo al inicio de la comunicación, usando una señalización de subsistema multimedia de IP, IMS, incluyendo una de una oferta de protocolo de descripción de sesión, SDP, y una respuesta de SDP, siendo el códec negociado un códec que soporta una pluralidad de anchos de banda de señales de entrada de audio/voz a codificar; y un determinador (708) de ancho de banda adaptado para limitar el ancho de banda de la señal de entrada de audio/voz del códec a otro ancho de banda sin cambiar el códec durante la comunicación con el terminal homólogo, de acuerdo con la señalización para limitar el ancho de banda de la señal de entrada de audio/voz del códec.

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