Tone synthesizing device and method based on physical model tone generator
US6175073A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1999 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Jul 19, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2250/521
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Physical model tone generator, which includes a loop section with a signal delay element, generates a driving signal by modifying a loop output signal from the loop in accordance with a performance parameter such as a bowing velocity, and introduces the generated driving signal to the loop. This way, the tone generator generates a tone signal with a characteristic controlled by the performance parameter, in a pitch period corresponding to a time delay of the loop. To generate the driving signal, a nonlinear conversion section performs a nonlinear conversion on an input signal based on the loop output signal and performance parameter. The conversion section switches an input-output characteristic, to be used for converting the input signal, into one of at least first and second input-output characteristics in accordance with intensity of a signal based on the loop output signal or the input signal, so that a desired nonlinear conversion characteristic is achieved. Control section restrains a period, in which the first input-output characteristic shifts to the second input-output characteristic, from becoming shorter than the pitch period of a tone based on the loop output signal. Th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.