Audio signal processing method and apparatus for controlling loudness level

    公开(公告)号:US10686420B2

    公开(公告)日:2020-06-16

    申请号:US16396632

    申请日:2019-04-26

    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.

    Audio signal processing method and device for controlling loudness level

    公开(公告)号:US12237818B2

    公开(公告)日:2025-02-25

    申请号:US18375441

    申请日:2023-09-29

    Abstract: An audio signal processing device comprises: a receiver for receiving an input audio signal; a processor for generating loudness metadata corresponding to the input audio signal; and an outputter for transmitting the loudness metadata generated by the processor. The processor is configured to acquire loudness information analyzed from input content, acquires loudness information about the input audio signal by measuring the loudness of the input audio signal, generates the loudness metadata by converting the loudness information, and transmits, through the outputter, the generated loudness metadata to an output device for outputting the input audio signal.

    Audio signal processing method and device for controlling loudness level

    公开(公告)号:US11316490B2

    公开(公告)日:2022-04-26

    申请号:US17053772

    申请日:2020-03-12

    Abstract: An audio signal processing device comprises: a receiver for receiving an input audio signal; a processor for generating loudness metadata corresponding to the input audio signal; and an outputter for transmitting the loudness metadata generated by the processor. The processor is configured to acquire loudness information analyzed from input content, acquires loudness information about the input audio signal by measuring the loudness of the input audio signal, generates the loudness metadata by converting the loudness information, and transmits, through the outputter, the generated loudness metadata to an output device for outputting the input audio signal.

    Audio signal processing method and device for controlling loudness level

    公开(公告)号:US11791789B2

    公开(公告)日:2023-10-17

    申请号:US17700494

    申请日:2022-03-22

    CPC classification number: H03G3/3089

    Abstract: An audio signal processing device comprises: a receiver for receiving an input audio signal; a processor for generating loudness metadata corresponding to the input audio signal; and an outputter for transmitting the loudness metadata generated by the processor. The processor is configured to acquire loudness information analyzed from input content, acquires loudness information about the input audio signal by measuring the loudness of the input audio signal, generates the loudness metadata by converting the loudness information, and transmits, through the outputter, the generated loudness metadata to an output device for outputting the input audio signal.

Patent Agency Ranking