Audio signal processing apparatus
US6822152B2 · kind B2 · utility
2Cited by
5References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1999 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Jul 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S84/12
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An audio signal processing apparatus for changing a tempo of an input audio signal is disclosed. The apparatus includes a magnification designator capable of designating a plurality of different magnifications. A device is capable of automatically detecting a beat(s) per minute, BPM, or the audio input signal. The device may also detect a beat period of the input audio signal. The device also changes the BPM or beat period in accordance with a magnification designated by the magnification designator. Further, the device changes the tempo of the audio signal in accordance with the changed BPM and the changed beat period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.