发明名称 |
Processor, method and computer program for processing an audio signal using truncated analysis or synthesis window overlap portions |
摘要 |
A processor for processing an audio signal (200), comprises: an analyzer (202) for deriving a window control signal (204) from the audio signal (200) indicating a change from a first asymmetric window (1400) to a second window (1402), or indicating a change from a third window (1450) to a fourth asymmetric window (1452), wherein the second window (1402) is shorter than the first window (1400), or wherein the third window (1450) is shorter than the fourth window (1452); a window constructor (206) for constructing the second window (1402) using a first overlap portion (800) of the first asymmetric window (1400), wherein the window constructor (206) is configured to determine a first overlap portion (1000) of the second window (1402) using a truncated first overlap portion of the first asymmetric window, or wherein the window constructor is configured to calculate a second overlap portion (1330) of the third window (1450) using a truncated second overlap portion (814) of the fourth asymmetric window (1452); and a windower (208) for applying the first and second windows or the third and fourth windows to obtain windowed audio signal portions (210). |
申请公布号 |
AU2015295602(A1) |
申请公布日期 |
2017.03.16 |
申请号 |
AU20150295602 |
申请日期 |
2015.07.24 |
申请人 |
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. |
发明人 |
Fuchs, Guillaume;Multrus, Markus;Neusinger, Matthias;Niedermeier, Andreas;Schnell, Markus |
分类号 |
G10L19/025 |
主分类号 |
G10L19/025 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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