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    METHOD AND APPARATUS OF PROCESSING AUDIO DATA, ELECTRONIC DEVICE, STORAGE MEDIUM AND PROGRAM PRODUCT
    5.
    发明公开
    METHOD AND APPARATUS OF PROCESSING AUDIO DATA, ELECTRONIC DEVICE, STORAGE MEDIUM AND PROGRAM PRODUCT 审中-公开

    公开(公告)号：EP4120265A2

    公开(公告)日：2023-01-18

    申请号：EP22210430.9

    申请日：2022-11-30

    Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.

    Inventor： HOU, Jiankang ,  NIE, Zhipeng ,  ZHANG, Liqiang ,  SUN, Tao ,  JIA, Lei

    IPC: G10L25/00 ,  G10L25/18 ,  G10L25/90 ,  G10L25/24

    Abstract: A method and an apparatus of processing audio data, an electronic device, a storage medium, and a program product are provided, which relates to a field of artificial intelligence, in particular to a field of speech processing technology. The method includes: processing spectral data of the audio data to obtain a first feature information; obtaining a fundamental frequency indication information according to the first feature information, wherein the fundamental frequency indication information indicates valid audio data of the first feature information and invalid audio data of the first feature information; obtaining a fundamental frequency information and a spectral energy information according to the first feature information and the fundamental frequency indication information; and obtaining a harmonic structure information of the audio data according to the fundamental frequency information and the spectral energy information.

    METHOD OF PROVIDING A USER WITH FEEDBACK ON PERFORMANCE OF A KARAOKE SONG
    8.
    发明公开
    METHOD OF PROVIDING A USER WITH FEEDBACK ON PERFORMANCE OF A KARAOKE SONG 审中-公开
    方法以提供反馈，用于执行卡拉OK歌曲给用户

    公开(公告)号：EP3120343A1

    公开(公告)日：2017-01-25

    申请号：EP15721754.8

    申请日：2015-03-12

    Applicant: Singon OY

    Inventor： JÄÄSKELÄINEN, Petri ,  HALONEN, Tommi

    IPC: G10H1/36 ,  G10H1/00 ,  G10L25/00

    CPC classification number: G10H1/361 ,  G10H2210/091 ,  G10H2220/011 ,  G10H2220/015 ,  G10L25/90

    Abstract: A method and system for providing a user with feedback on performance of a karaoke song is provided. Musical data elements (e.g. lyrics and notes) of a music track input feed are compared with musical data elements (e.g. lyrics and pitch) of the karaoke performance. Based on the comparison, a feedback on the performance is generated on a display in substantially real time. Accordingly, text of the lyric of the music track and text of the the lyric of the performance are represented on the display. Moreover, differences between the performance and the music track are represented by altering the representation of the lyrics of the performance relative to the representation of the lyrics of the music track on the display. For example a vertical position of lyrics of the music track relative to a horizontal axis of the display corresponds to a pitch of the music track. A difference between pitch of the performance and notes of the music track is represented by a difference between the vertical position of the lyrics of the performance and the vertical position of the corresponding lyrics of the music track. A difference between a horizontal position of the lyrics of the performance and a horizontal position of the corresponding lyrics represents the tempo difference, which provides a feedback to the user that an error in a timing of the performance has occurred.

    Abstract translation: 本发明提供一种用于在卡拉OK歌曲的一个性能提供反馈方法和系统。 音乐曲目输入进料的音乐数据元素与一个性能输入进料的音乐数据元素相比较。 基于该比较，在显示器上产生的卡拉OK歌曲的性能反馈。 因此，卡拉OK歌曲和性能的抒情数据元素的音乐曲目的抒情数据元素被表示在显示器上。 更以上，性能和音乐曲目之间的差异通过改变相对于所述显示器上的音乐曲目的抒情数据元素的表示的性能的抒情数据元素的表示所表示。

    PRECISION MEASUREMENT OF WAVEFORMS
    10.
    发明公开
    PRECISION MEASUREMENT OF WAVEFORMS 审中-公开
    PRÄZISIONSMESSUNGVON SIGNALFORMEN

    公开(公告)号：EP2391895A4

    公开(公告)日：2014-11-05

    申请号：EP09851007

    申请日：2009-11-12

    Applicant: SMITH PAUL REED GUITARS LTD

    Inventor： SMITH PAUL REED ,  SLAY FREDERICK M

    IPC: G06F17/14 ,  G01R13/00 ,  G10H1/00 ,  G10H1/08 ,  G10H1/12 ,  G10H1/14 ,  G10L25/00 ,  G10L25/18

    CPC classification number: G10L25/00 ,  G01R23/16 ,  G06F17/14 ,  G10H1/0008 ,  G10H2210/066 ,  G10H2250/235 ,  G10L25/18

    Abstract: A machine-implemented method for computerized digital signal processing, comprising: obtaining a digital signal from data storage or from conversion of an analog signal; and determining, from the digital signal, measuring matrices. Each measuring matrix has a plurality of cells, each cell having an amplitude corresponding to the signal energy in a frequency bin for a time slice. Cells in each measuring matrix having maximum amplitudes along a time slice and/or frequency bin are identified as maximum cells. Maxima that coincide in time and frequency are identified and a correlated maxima matrix, called a "Precision Measuring Matrix" is constructed showing the coinciding maxima and the adjacent marked maxima are linked into partial chains. If only one MM is constructed, multiple types of maxima are identified to generate the Precision Measuring Matrix.

    Abstract translation: 一种用于计算机化数字信号处理的机器实现方法，包括：从数据存储或从模拟信号的转换获得数字信号; 以及从所述数字信号确定测量矩阵。 每个测量矩阵具有多个单元，每个单元具有对应于时间片的频率仓中的信号能量的振幅。 具有沿时间片和/或频率仓的最大振幅的每个测量矩阵中的单元被识别为最大单元。 识别在时间和频率上重合的最大值，并且构建称为“精确测量矩阵”的相关最大值矩阵，其示出了一致的最大值，并且相邻的标记最大值被链接到部分链中。 如果仅构建一个MM，则识别出多种类型的最大值以生成精度测量矩阵。

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