Method and apparatus to enhance low frequency components and medium frequency components of audio signal
US8582785B2 · kind B2 · utility
4Cited by
4References
24Claims
0Family size
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Key dates
| Filing date | Jun 12, 2007 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Sep 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S3/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus to enhance one or more low-frequency components and one or more medium-frequency components of an audio signal. The method includes performing filtering on the input audio signal using a plurality of band-pass filters, generating a plurality of harmonic-frequency signals using a plurality of audio signals resulting from the performing filtering operation, and mixing the plurality of harmonic-frequency signals with the input audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.