再颁专利
USRE50158E1 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
有权
基本信息:
- 专利标题： Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
- 申请号：US17845580 申请日：2022-06-21
- 公开(公告)号：USRE50158E1 公开(公告)日：2024-10-01
- 发明人： Markus Schnell , Manfred Lutzky , Markus Lohwasser , Markus Schmidt , Marc Gayer , Michael Mellar , Bernd Edler , Markus Multrus , Gerald Schuller , Ralf Geiger , Bernhard Grill
- 申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 申请人地址： DE Munich
- 专利权人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 当前专利权人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 当前专利权人地址： DE Munich
- 代理机构： Perkins Coie LLP
- 代理人： Michael A. Glenn
- 分案原申请号： US17845375 2022.06.21
- 主分类号： G10L19/00
- IPC分类号： G10L19/00 ; G10L19/02 ; G10L19/022 ; G10L25/45 ; H03H17/02 ; G10L21/038
摘要：
An embodiment of an apparatus for generating audio subband values in audio subband channels includes an analysis windower for windowing a frame of time-domain audio input samples being in a time sequence extending from an early sample to a later sample using an analysis window function including a sequence of window coefficients to obtain windowed samples. The analysis window function includes a first number of window coefficients derived from a larger window function including a sequence of a larger second number of window coefficients, wherein the window coefficients of the window function are derived by an interpolation of window coefficients of the larger window function. The apparatus further includes a calculator for calculating the audio subband values using the windowed samples.
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 |
| ------G10L19/00 | 用于冗余度下降情形的语音分析—合成技术；语音编码或解码 |