发明授权
- 专利标题: Waveform signal generating apparatus and method for waveform editing system
- 专利标题(中): 波形信号发生装置及波形编辑系统方法
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申请号: US75170申请日: 1993-06-10
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公开(公告)号: US5371315A公开(公告)日: 1994-12-06
- 发明人: Kohtaro Hanzawa , Kunihiro Sugita , Hiroyuki Sasaki
- 申请人: Kohtaro Hanzawa , Kunihiro Sugita , Hiroyuki Sasaki
- 申请人地址: JPX Tokyo
- 专利权人: Casio Computer Co., Ltd.
- 当前专利权人: Casio Computer Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX61-172304[U] 19861110; JPX61-293650 19861209; JPX62-167069 19870706; JPX62-167070 19870706; JPX62-167071 19870706
- 主分类号: G10H1/08
- IPC分类号: G10H1/08 ; G10H7/00 ; G10H7/04
摘要:
The position of a connecting portion between waveforms can be arbitrarily set when a plurality of waveform data is obtained by changing pitch widths of stored external sound waveform data, when a read rate of the waveform data is increased or decreased and the readout waveform data is synthesized, or when the waveform is changed from one waveform to another waveform. In addition, a plurality of loop reproduction cycles can be arbitrarily set when the waveform data is to be read out. In loop reproduction, two items of waveform data having different phases between the preset start and end addresses can be repeatedly read out and synthesized, and their mixing ratios can be changed as a function of time, thereby performing loop reproduction so as not to abruptly change amplitude values of the waveforms.
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