发明名称 |
Method and apparatus for changing the timbre and/or pitch of audio signals |
摘要 |
A method for shifting the timbre and/or pitch of an input signal samples the input signal at a first rate and stores the samples in a memory buffer. A digital signal processor resamples the stored input signal at a rate that differs from the first rate at which the input note is originally sampled and stores the resampled input signal in a second memory buffer. A pitch shifter shifts the pitch of the input signal by periodically scaling the resampled input signal by a window function to create an output signal. The rate at which the resampled data is replicated by the window function determines the pitch of the output signal.
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申请公布号 |
US5986198(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19960713405 |
申请日期 |
1996.09.13 |
申请人 |
IVL TECHNOLOGIES LTD. |
发明人 |
GIBSON, BRIAN CHARLES;JUBIEN, CHRISTOPHER MICHAEL;RODEN, BRIAN JOHN |
分类号 |
G10H1/043;G10H1/20;G10H3/12;G10H5/00;G10H7/08;(IPC1-7):G10H7/00 |
主分类号 |
G10H1/043 |
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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