Method for shifting pitches of audio signals to a desired pitch relationship
US7514620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Apr 4, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2210/335
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method and apparatus for shifting pitches of audio signals to achieve desired pitch relationships between the audio signals. Two or more audio signals are received. The audio signals may be in either a digital or analog format. One of the input audio signals is selected to be a reference signal. For each of the other audio signals, the pitch of the other audio signal is compared with the pitch of the reference signal to determine a relative pitch relationship. For each of the other signals, an adjustment is determined to bring the relationship to a desired pitch relationship. Based on the adjustment, the pitch of at least one of the audio signals is adjusted to achieve the desired pitch relationship between the audio signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.