Back to results
US 10,540,988 B2Granted
Method and apparatus for sound event detection robust to frequency change
AssigneeElectronics and Telecommunications Research Institute
InventorWoo-taek Lim
Life of this patent
Estimating the term…
Abstract
Disclosed is a sound event detecting method including receiving an audio signal, transforming the audio signal into a two-dimensional (2D) signal, extracting a feature map by training a convolutional neural network (CNN) using the 2D signal, pooling the feature map based on a frequency, and determining whether a sound event occurs with respect to each of at least one time interval based on a result of the pooling.
Claims11
A sound event detecting method performed by a sound event detecting apparatus, the sound event detecting method comprising:
- receiving an audio signal;
- transforming the audio signal into a two-dimensional (2D) time-frequency signal;
- extracting a feature map from the 2D signal using a trained convolutional neural network (CNN);
- pooling the feature map based on a frequency;
- and
- determining whether a sound event occurs with respect to each of one or more time intervals based on a result of the pooling.
3 more elements
A sound event detecting apparatus, comprising:
- a memory configured to store a control program;
- one or more processors configured to operate based on the control program;
- and
- a receiver configured to receive an audio signal from an outside,
- wherein the control program is configured to perform:
- receiving an audio signal from an outside,
- transforming the audio signal into a two-dimensional (2D) time-frequency signal,
- extracting a feature map from the 2D signal using a trained neural network (CNN),
- pooling the feature map based on a frequency, and
- determining whether a sound event occurs with respect to each of one or more time intervals based on a result of the pooling.
7 more elements
Dependencies are inferred from the claim text.