公开(公告)号：US12101070B2

公开(公告)日：2024-09-24

申请号：US17808321

申请日：2022-06-23

Applicant: NAVER CORPORATION ,  GAUDIO LAB, INC.

Inventor： Seongcheol Jo ,  Taek Su An ,  Sung Hyun Kang ,  JiUng Lee ,  Byung Gyou Choi ,  Jeongsoo Hur ,  Jeonghun Seo ,  Sang Bae Chon ,  Hyun Oh Oh

IPC: H03G7/00 ,  H03G3/00 ,  H03G3/32 ,  H03G5/00

CPC classification number: H03G7/007 ,  H03G3/002 ,  H03G3/32 ,  H03G5/005

Abstract: A method for processing an audio signal includes setting target loudness; receiving metadata of an audio signal from a server; and adjusting the loudness of the audio signal by using the received metadata, so that the loudness of the audio signal corresponds to the set target loudness.

公开(公告)号：US11838570B2

公开(公告)日：2023-12-05

申请号：US17653145

申请日：2022-03-02

Applicant: NAVER CORPORATION ,  GAUDIO LAB, INC.

Inventor： Seongcheol Jo ,  Taek Su An ,  Sung Hyun Kang ,  JiUng Lee ,  Byung Gyou Choi ,  Jeongsoo Hur ,  Hyeonsu Seo ,  Taegyu Lee ,  Hyun Oh Oh

IPC: H04N21/23 ,  H04N21/2387 ,  H04N21/233 ,  H04N21/237 ,  H04N21/45

CPC classification number: H04N21/2387 ,  H04N21/233 ,  H04N21/237 ,  H04N21/4532

Abstract: A loudness normalization method includes receiving data for playback of content from a server in response to a user's request to play back the content; normalizing the loudness of the content by adjusting the volume output level of a player using volume level metadata of the content included in the received data; and providing the content by playing audio of the content based on the adjusted volume output level of the player.

公开(公告)号：US11470435B2

公开(公告)日：2022-10-11

申请号：US17066454

申请日：2020-10-08

Applicant: GAUDIO LAB, INC.

Inventor： Jeonghun Seo ,  Taegyu Lee ,  Hyunoh Oh ,  Jaesung Choi

IPC: H04S1/00 ,  H04S7/00

Abstract: 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.

公开(公告)号：US20220264160A1

公开(公告)日：2022-08-18

申请号：US17653145

申请日：2022-03-02

Applicant: NAVER CORPORATION ,  GAUDIO LAB, INC.

Inventor： Seongcheol JO ,  Taek Su AN ,  Sung Hyun KANG ,  JiUng LEE ,  Byung Gyou CHOI ,  Jeongsoo HUR ,  Hyeonsu SEO ,  Taegyu LEE ,  Hyun Oh OH

IPC: H04N21/2387 ,  H04N21/233 ,  H04N21/237 ,  H04N21/45

Abstract: A loudness normalization method includes receiving data for playback of content from a server in response to a user's request to play back the content; normalizing the loudness of the content by adjusting the volume output level of a player using volume level metadata of the content included in the received data; and providing the content by playing audio of the content based on the adjusted volume output level of the player.

公开(公告)号：US20220167103A1

公开(公告)日：2022-05-26

申请号：US17534804

申请日：2021-11-24

Applicant: NAVER Corporation ,  Gaudio Lab, Inc.

Inventor： Dae Hwang KIM ,  Jung Sik KIM ,  Dong Hwan KIM ,  Ted LEE ,  Jeonghun SEO ,  Hyeonsu SEO

IPC: H04S7/00 ,  H04L65/61 ,  G06F3/16 ,  H04S3/00 ,  G06F16/687

Abstract: A method by a computer system including generating audio files based on respective audio signals, the audio signals having been respectively generated from a plurality of objects at a venue, generating metadata including spatial features at the venue that are respectively set for the objects, and transmitting the audio files and the metadata for the objects to a first electronic device to cause the first electronic device to realize a being-there at the venue by rendering the audio files based on the spatial features in the metadata may be provided.

公开(公告)号：US11212631B2

公开(公告)日：2021-12-28

申请号：US17022065

申请日：2020-09-15

Applicant: GAUDIO LAB, INC.

Inventor： Sangbae Chon ,  Byoungjoon Ahn ,  Jaesung Choi ,  Hyunoh Oh ,  Jeonghun Seo ,  Taegyu Lee

IPC: H04S1/00 ,  H04S7/00 ,  H04S5/00

Abstract: Disclosed is an audio signal processing method including: receiving a stereo signal; transforming the stereo signal into a frequency-domain signal; rendering the first signal based on a first ipsilateral filter coefficient; generating a frontal ipsilateral signal relating to the frequency-domain signal; rendering the second signal based on a second ipsilateral filter coefficient; generating a side ipsilateral signal relating to the frequency-domain signal; rendering the second signal based on a contralateral filter coefficient; generating a side contralateral signal relating to the frequency-domain signal; transforming an ipsilateral signal, generated by mixing the frontal ipsilateral signal and the side ipsilateral signal, and the side contralateral signal into a time-domain ipsilateral signal and a time-domain contralateral signal, which are time-domain signals, respectively; and generating a binaural signal by mixing the time-domain ipsilateral signal and the time-domain contralateral signal.

公开(公告)号：US20210112356A1

公开(公告)日：2021-04-15

申请号：US17066454

申请日：2020-10-08

Applicant: GAUDIO LAB, INC.

Inventor： Jeonghun SEO ,  Taegyu Lee ,  Hyunoh Oh ,  Jaesung Choi

IPC: H04S1/00

Abstract: 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.

公开(公告)号：US10686420B2

公开(公告)日：2020-06-16

申请号：US16396632

申请日：2019-04-26

Applicant: GAUDIO LAB, INC.

Inventor： Kyutae Park ,  Jeonghun Seo ,  Taegyu Lee ,  Hyunoh Oh ,  Sangbae Chon

IPC: H03G7/00 ,  H04R3/00

Abstract: The audio signal processing apparatus includes a processor configured to adjust an output loudness level of an input content. The processor is configured to obtain a loudness information analyzed from the input content, obtain a loudness gain applied to the input content based on the loudness information and a target loudness level, and adjust the output loudness level of the input content based on the loudness gain. In this case, in a first section among an entire section in which the input content is reproduced, the loudness gain is limited based on a first gain allowable range, and in a second section following the first section, the limitation on the loudness gain is released.

公开(公告)号：US11540075B2

公开(公告)日：2022-12-27

申请号：US17046302

申请日：2019-04-10

Applicant: GAUDIO LAB, INC.

Inventor： Hyunjoo Chung ,  Sangbae Chon

IPC: H04S3/00 ,  G10L19/008 ,  H04S7/00

Abstract: 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.

公开(公告)号：US20220302892A1

公开(公告)日：2022-09-22

申请号：US17806380

申请日：2022-06-10

Applicant: NAVER CORPORATION ,  GAUDIO LAB, INC.

Inventor： Seongcheol JO ,  Taek Su AN ,  Sung Hyun KANG ,  JiUng LEE ,  Byung Gyou CHOI ,  Jeongsoo HUR ,  Hyung Oh OH ,  Taegyu LEE ,  Hyeonsu SEO

IPC: H03G7/00 ,  G10L21/0364 ,  H04L1/00 ,  H04L65/756

Abstract: A method for normalizing platform-adaptive audio includes encoding input video content and generating video stream data as original data to store the video stream data in storage; generating loudness metadata for audio data of the video content and storing the loudness metadata in the storage; receiving a request for the video content from a client; searching the storage for video stream data of the video content corresponding to the request, the loudness metadata, and a device profile corresponding to device information included in the request; and transmitting, to the client, a response including the video stream data, the loudness metadata, and the device profile that are found in the storage.