Method and device for processing audio signal, using metadata

    公开(公告)号:US11540075B2

    公开(公告)日:2022-12-27

    申请号:US17046302

    申请日:2019-04-10

    申请人: GAUDIO LAB, INC.

    IPC分类号: H04S3/00 G10L19/008 H04S7/00

    摘要: Disclosed is a device for processing an audio signal, which renders an audio signal. The device for processing an audio signal includes a processor. The processor receives metadata including an audio signal and first element reference distance information and renders a first element signal on the basis of the first element reference distance information, wherein the first element reference distance information indicates the reference distance of an element signal. The audio signal is capable of including a second element signal which may be simultaneously rendered with the first element signal, and the metadata is capable of including second element distance information indicating the distance of the second element signal. The number of bits required for representing the first element reference distance information is smaller than the number of bits required for representing the second element distance information.

    AUDIO SIGNAL PROCESSING METHOD AND APPARATUS FOR CONTROLLING LOUDNESS LEVEL AND DYNAMIC RANGE

    公开(公告)号:US20220286103A1

    公开(公告)日:2022-09-08

    申请号:US17827658

    申请日:2022-05-27

    申请人: GAUDIO LAB, INC.

    IPC分类号: H03G3/30 H04R1/10

    摘要: Disclosed is a method of operating an audio signal processing apparatus playing content including an audio signal. The method includes receiving the audio signal, receiving metadata including information related to a loudness of the audio signal, the metadata including loudness distribution information indicating, for each of a plurality of steps separated according to a loudness magnitude, a ratio between an amount of the audio signal corresponding to each of the plurality of steps of the audio signal and a total amount of the audio signal, and adjusting the loudness of the audio signal based on the metadata.

    METHOD FOR PERFORMING NORMALIZATION OF AUDIO SIGNAL AND APPARATUS THEREFOR

    公开(公告)号:US20220166397A1

    公开(公告)日:2022-05-26

    申请号:US17535329

    申请日:2021-11-24

    申请人: GAUDIO LAB, INC.

    IPC分类号: H03G7/00 G06F3/16 H03G9/00

    摘要: A method for performing loudness normalization by an audio signal processing device includes: receiving an audio signal; receiving information relating to integrated loudness of the audio signal; receiving information relating to target loudness of the audio signal; obtaining a corrected integrated loudness by correcting the integrated loudness based on one or more audio processing; and obtaining a normalized audio signal by normalizing the audio signal based on the corrected integrated loudness and the target loudness.

    AUDIO SIGNAL PROCESSING METHOD AND APPARATUS FOR CONTROLLING LOUDNESS LEVEL AND DYNAMIC RANGE

    公开(公告)号:US20210288626A1

    公开(公告)日:2021-09-16

    申请号:US17197018

    申请日:2021-03-09

    申请人: GAUDIO LAB, INC

    IPC分类号: H03G3/30 H04R1/10

    摘要: Disclosed is a method of operating an audio signal processing apparatus playing content including an audio signal. The method includes receiving the audio signal, receiving metadata including information related to a loudness of the audio signal, the metadata including loudness distribution information indicating, for each of a plurality of steps separated according to a loudness magnitude, a ratio between an amount of the audio signal corresponding to each of the plurality of steps of the audio signal and a total amount of the audio signal, and adjusting the loudness of the audio signal based on the metadata.

    APPARATUS AND METHOD FOR PROCESSING AUDIO SIGNAL

    公开(公告)号:US20170139669A1

    公开(公告)日:2017-05-18

    申请号:US15356530

    申请日:2016-11-18

    申请人: Gaudio Lab, Inc.

    IPC分类号: G06F3/16 H04R3/12 H04R29/00

    摘要: An embodiment of the present disclosure provides an audio signal processing device configured to transmit/receive an audio signal to/from an external acoustic output device that includes a microphone and an acoustic output means, including a transmission/reception module configured to transmit/receive a signal to/from the external acoustic output device, and a processor configured to control an operation of the transmission/reception module, wherein the processor transmits an audio output signal to the external acoustic output device through the transmission/reception module, receives, through the transmission/reception module, an input signal to which an external acoustic collected through the microphone is converted while the acoustic output means outputs an acoustic based on the audio output signal, and compares the audio output signal with the input signal to determine whether a user wears the acoustic output means of the external acoustic output device.

    Method and device for processing audio signals using 2-channel stereo speaker

    公开(公告)号:US11470435B2

    公开(公告)日:2022-10-11

    申请号:US17066454

    申请日:2020-10-08

    申请人: GAUDIO LAB, INC.

    IPC分类号: H04S1/00 H04S7/00

    摘要: Disclosed is an audio signal processing device. The audio signal processing device includes a receiving end configured to receive a 2-channel stereo signal and a processor configured to process the 2-channel stereo signal. The processor is configured to filter the 2-channel stereo signal using a spatial distortion removal filter and output the filtered 2-channel stereo signal to a speaker including two or more channels. The spatial distortion removal filter is a filter for offsetting distortion that occurs when the output signal is transmitted from the speaker to a listener, and includes an ipsilateral filter applied to an ipsilateral signal of the 2-channel audio signal and a contralateral filter applied to a contralateral signal of the 2-channel audio signal.