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1. (WO2018065366) APPARATUS AND METHOD FOR DETERMINING A PITCH INFORMATION

Pub. No.:    WO/2018/065366    International Application No.:    PCT/EP2017/074984
Publication Date: Fri Apr 13 01:59:59 CEST 2018 International Filing Date: Tue Oct 03 01:59:59 CEST 2017
IPC: G10L 25/90
Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Inventors: LECOMTE, Jérémie
TOMASEK, Adrian
Title: APPARATUS AND METHOD FOR DETERMINING A PITCH INFORMATION
Abstract:
An apparatus for determining a pitch information on the basis of an audio signal. The apparatus is configured to obtain a similarity value being associated with a given pair of portions of the audio signal having a given time shift, wherein the apparatus is configured to choose a length of signal portions of the audio signal used to obtain the similarity value for the given time shift in dependence on the given time shift and where the apparatus is configured to choose the length of the signal portions to be linearly dependent on the given time shift, within a tolerance of ±1 sample.