Patent ID: 11943591
Assignee: nan
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. The system for automatic detection of music listening reactions of claim 4, wherein the motion reaction classifier uses a feature which encodes a periodicity of the inertial signal, and
the feature that encodes the periodicity includes at least one of:
a number of autocorrelation peaks of a data segment of the inertial signal,
a maximum value of the autocorrelation peaks of the data segment of the inertial signal,
a time interval between first autocorrelation peak and last autocorrelation peak of the data segment of the inertial signal,
a number of zero crossings of a waveform of the data segment of the inertial signal,
a mean of time intervals between consecutive peaks of the autocorrelation peak of the data segment of the inertial signal, and
a standard deviation of the time intervals between the consecutive peaks of the autocorrelation peaks of the data segment of the inertial signal; and

the motion reaction classifier uses a beat-related feature of the music information, and the beat-related feature includes at least one of:
a ratio of a number of peaks of the data segment of the inertial signal to a number of the beat, or a plurality of the beat or beats, of the music information in a window,
a ratio of a median of a time interval between consecutive peaks of the data segment to a median of a time interval between consecutive beats of the music information, and
a ratio of a standard deviation of the time interval between the consecutive peaks of the data segment of the inertial signal to a mean of time interval between consecutive beats of the music information.