US 11,838,570 B2
Loudness normalization method and system
Seongcheol Jo, Seongnam-si (KR); Taek Su An, Seongnam-si (KR); Sung Hyun Kang, Seongnam-si (KR); JiUng Lee, Seongnam-si (KR); Byung Gyou Choi, Seongnam-si (KR); Jeongsoo Hur, Seongnam-si (KR); Hyeonsu Seo, Seoul (KR); Taegyu Lee, Seoul (KR); and Hyun Oh Oh, Seongnam-si (KR)
Assigned to NAVER CORPORATION, Seongnam-si (KR); and GAUDIO LAB, INC., Seoul (KR)
Filed by NAVER CORPORATION, Seongnam-si (KR); and GAUDIO LAB, INC., Seoul (KR)
Filed on Mar. 2, 2022, as Appl. No. 17/653,145.
Application 17/653,145 is a continuation of application No. PCT/KR2020/011680, filed on Sep. 1, 2020.
Claims priority of application No. 10-2019-0108360 (KR), filed on Sep. 2, 2019.
Prior Publication US 2022/0264160 A1, Aug. 18, 2022
Int. Cl. H04N 21/23 (2011.01); H04N 21/2387 (2011.01); H04N 21/233 (2011.01); H04N 21/237 (2011.01); H04N 21/45 (2011.01)
CPC H04N 21/2387 (2013.01) [H04N 21/233 (2013.01); H04N 21/237 (2013.01); H04N 21/4532 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A non-transitory computer-readable recording medium storing a computer program for enabling a computer device to execute aloudness normalization method, the method comprising:
receiving data for playback of content from a system server in response to a user's request to play back the content;
normalizing a loudness of the content by adjusting a volume output level of a player using volume level metadata of the content included in the received data;
providing the content by playing audio of the content based on the adjusted volume output level of the player;
receiving, from an external server, external content related to the content; and
receiving volume level metadata of the external content from the system server in response to a determination that a playback history of the external content is present, and extracting volume level metadata from the external content to a determination that a playback history of the external content is absent,
wherein the volume level metadata of the external content from the system server includes information that has been extracted from the external content while the external content was being played previously and transmitted to the system server.