Patents by Inventor Lizhao GUO

Lizhao GUO 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).

  • Method for evaluating a speech forced alignment model, electronic device, and storage medium
    Patent number: 11749257
    Abstract: A method for evaluating a speech forced alignment model, an electronic device, and a storage medium are provided. The method includes: according to each audio segment in a test set and a text corresponding to each audio segment, acquiring, by using a speech forced alignment model to be evaluated, a phoneme sequence corresponding to each audio segment and a predicted start time and a predicted end time of each phoneme in the phoneme sequence; for each phoneme, obtaining a time accuracy score of the phoneme according to the predicted start time and the predicted end time of the phoneme and a predetermined reference start time and a predetermined reference end time of the phoneme; and determining a time accuracy score of said speech forced alignment model according to the time accuracy score of each phoneme.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: September 5, 2023
    Assignee: BEIJING CENTURY TAL EDUCATION TECHNOLOGY CO., LTD.
    Inventors: Lizhao Guo, Song Yang, Junfeng Yuan
  • METHOD FOR EVALUATING A SPEECH FORCED ALIGNMENT MODEL, ELECTRONIC DEVICE, AND STORAGE MEDIUM
    Publication number: 20230206902
    Abstract: A method for evaluating a speech forced alignment model, an electronic device, and a storage medium are provided. The method includes: according to each audio segment in a test set and a text corresponding to each audio segment, acquiring, by using a speech forced alignment model to be evaluated, a phoneme sequence corresponding to each audio segment and a predicted start time and a predicted end time of each phoneme in the phoneme sequence; for each phoneme, obtaining a time accuracy score of the phoneme according to the predicted start time and the predicted end time of the phoneme and a predetermined reference start time and a predetermined reference end time of the phoneme; and determining a time accuracy score of said speech forced alignment model according to the time accuracy score of each phoneme.
    Type: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Applicant: BEIJING CENTURY TAL EDUCATION TECHNOLOGY CO., LTD.
    Inventors: Lizhao GUO, Song YANG, Junfeng YUAN