Invention Grant
- Patent Title: Apparatus and method for harmonic-percussive-residual sound separation using a structure tensor on spectrograms
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Application No.: US16129732Application Date: 2018-09-12
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Publication No.: US10770051B2Publication Date: 2020-09-08
- Inventor: Andreas Niedermeier , Richard Füg , Sascha Disch , Meinard Müller , Jonathan Driedger
- Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
- Current Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
- Current Assignee Address: DE Munich
- Agency: McClure, Qualey & Rodack, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@77a8d221
- Main IPC: G10H1/40
- IPC: G10H1/40 ; G06F16/683 ; G06F17/16
Abstract:
An apparatus for analysing a magnitude spectrogram of an audio signal is provided. The apparatus includes a frequency change determiner being configured to determine a change of a frequency for each time-frequency bin of a plurality of time-frequency bins of the magnitude spectrogram of the audio signal depending on the magnitude spectrogram of the audio signal. Moreover, the apparatus includes a classifier being configured to assign each time-frequency bin of the plurality of time-frequency bins to a signal component group of two or more signal component groups depending on the change of the frequency determined for the time-frequency bin.
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