Musical harmony generation from polyphonic audio signals
US8168877B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Dec 21, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2250/235
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Melody and accompaniment audio signals are received and processed to identify one or more harmony notes and a harmony signal is produced based on the one or more harmony notes. Typically the melody note is identified and a spectrum of the accompaniment audio signal and is obtained, and one or more harmony notes are identified based on the melody note and the accompaniment spectrum. The melody, and accompaniment signals can be processed in real-time for combination with the harmony signal in an audio performance. In some examples, audio signals are processed and harmonies generated for subsequent performance based on, for example, MIDI files generated from the audio signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.