基本信息:
- 专利标题： AUDIO SIMILARITY EVALUATOR, AUDIO ENCODER, METHODS AND COMPUTER PROGRAM
- 申请号：EP23180176.2 申请日：2019-05-29
- 公开(公告)号：EP4270393A3 公开(公告)日：2023-12-20
- 发明人： Disch, Sascha , van de Par, Steven , Niedermeier, Andreas , Burdiel Pérez, Elena , EDLER, Bernd
- 申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 申请人地址： DE 80686 München Hansastraße 27c
- 代理机构： Burger, Markus
- 优先权： EP18198992 20181005
- 主分类号： G10L25/51
- IPC分类号： G10L25/51 ; G10L19/22 ; G10L21/0388 ; G10L25/18
摘要：
An audio similarity evaluator obtains envelope signals for a plurality of frequency ranges on the basis of an input audio signal. The audio similarity evaluator is configured to obtain a modulation information associated with the envelope signals for a plurality of modulation frequency ranges, wherein the modulation information describes the modulation of the envelope signals. The audio similarity evaluator is configured to compare the obtained modulation information with a reference modulation information associated with a reference audio signal, in order to obtain an information about a similarity between the input audio signal and the reference audio signal. An audio encoder uses such an audio similarity evaluator. Another audio similarity evaluator uses a neural net trained using the audio similarity evaluator.
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G10 | 乐器；声学 |
| ----G10L | 语言分析或合成；语言识别 |
| ------G10L25/00 | 不限于组G10L15/00-G10L21/00的语言或者声音分析技术 |
| --------G10L25/48 | .专门适用于特定用途 |
| ----------G10L25/51 | ..比较或判别 |