Method and Device for Sound Activity Detection and Sound Signal Classification
AssigneeVoiceage Corporation
InventorsVladimir Malenovsky, Milan Jelinek, Tommmy Vaillancourt, Redwan Salami
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Abstract
A device and method for estimating a tonality of a sound signal comprise: calculating a current residual spectrum of the sound signal; detecting peaks in the current residual spectrum; calculating a correlation map between the current residual spectrum and a previous residual spectrum for each detected peak; and calculating a long-term correlation map based on the calculated correlation map, the long-term correlation map being indicative of a tonality in the sound signal.
Claims66
A method for estimating a tonality of a sound signal the method comprising:
- calculating a current residual spectrum of the sound signal;
- detecting peaks in the current residual spectrum;
- calculating a correlation map between the current residual spectrum and a previous residual spectrum for each detected peak;
- and
- calculating a long-term correlation map based on the calculated correlation map, the long-term correlation map being indicative of a tonality in the sound signal.
A device for estimating a tonality of a sound signal, the device comprising:
- means for calculating a current residual spectrum of the sound signal;
- means for detecting peaks in the current residual spectrum;
- means for calculating a correlation map between the current residual spectrum and a previous residual spectrum for each detected peak;
- and
- means for calculating a long-term correlation map based on the calculated correlation map, the long-term correlation map being indicative of a tonality in the sound signal.
A device for estimating a tonality of a sound signal, the device comprising:
- a calculator of a current residual spectrum of the sound signal;
- a detector of peaks in the current residual spectrum;
- a calculator of a correlation map between the current residual spectrum and a previous residual spectrum for each detected peak;
- and
- a calculator of a long-term correlation map based on the calculated correlation map, the long-term correlation map being indicative of a tonality in the sound signal.
Dependencies are inferred from the claim text.