Patents by Inventor Stefan K. O. Strommer

Stefan K. O. Strommer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Metadata for loudness and dynamic range control
    Patent number: 11563411
    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: January 24, 2023
    Assignee: APPLE INC.
    Inventors: Frank Baumgarte, Eric A. Allamanche, Stefan K. O. Strommer
  • METADATA FOR LOUDNESS AND DYNAMIC RANGE CONTROL
    Publication number: 20210351754
    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
    Type: Application
    Filed: March 3, 2021
    Publication date: November 11, 2021
    Inventors: Frank Baumgarte, Eric A. Allamanche, Stefan K. O. Strommer
  • Metadata for loudness and dynamic range control
    Patent number: 10958229
    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: March 23, 2021
    Assignee: APPLE INC.
    Inventors: Frank Baumgarte, Eric A. Allamanche, Stefan K. O. Strommer
  • METADATA FOR LOUDNESS AND DYNAMIC RANGE CONTROL
    Publication number: 20200169233
    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Inventors: Frank Baumgarte, Eric A. Allamanche, Stefan K. O. Strommer
  • Metadata for loudness and dynamic range control
    Patent number: 10644666
    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: May 5, 2020
    Assignee: APPLE INC.
    Inventors: Frank Baumgarte, Eric A. Allamanche, Stefan K. O. Strommer
  • METADATA FOR LOUDNESS AND DYNAMIC RANGE CONTROL
    Publication number: 20170201219
    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
    Type: Application
    Filed: January 27, 2017
    Publication date: July 13, 2017
    Inventors: Frank Baumgarte, Eric A. Allamanche, Stefan K.O. Strommer
  • Metadata for loudness and dynamic range control
    Patent number: 9559651
    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: January 31, 2017
    Assignee: Apple Inc.
    Inventors: Frank Baumgarte, Eric A. Allamanche, Stefan K. O. Strommer
  • METADATA FOR LOUDNESS AND DYNAMIC RANGE CONTROL
    Publication number: 20140294200
    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Inventors: Frank Baumgarte, Eric A. Allamanche, Stefan K. O. Strommer