Sound Event Detection
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Adaptive pooling operators for weakly labeled sound event detection
In this work, we treat SED as a multiple instance learning (MIL) problem, where training labels are static over a short excerpt, indicating the presence or absence of sound sources but not their temporal locality. We evaluate the proposed pooling operators on three datasets, and demonstrate that in each case, the proposed methods outperform non-adaptive pooling operators for static prediction, and nearly match the performance of models trained with strong, dynamic annotations.
MULTIPLE INSTANCE LEARNING SOUND EVENT DETECTION TIME SERIES
A Closer Look at Weak Label Learning for Audio Events
• ankitshah009/WALNet-Weak_Label_Analysis
In this work, we first describe a CNN based approach for weakly supervised training of audio events. We then describe important characteristics, which naturally arise in weakly supervised learning of sound events.
Recurrent Neural Networks for Polyphonic Sound Event Detection in Real Life Recordings
In this paper we present an approach to polyphonic sound event detection in real life recordings based on bi-directional long short term memory (BLSTM) recurrent neural networks (RNNs). A single multilabel BLSTM RNN is trained to map acoustic features of a mixture signal consisting of sounds from multiple classes, to binary activity indicators of each event class.
Convolutional Recurrent Neural Networks for Polyphonic Sound Event Detection
• cchinchristopherj/Right-Whale-Unsupervised-Model
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Sound events often occur in unstructured environments where they exhibit wide variations in their frequency content and temporal structure. Convolutional neural networks (CNN) are able to extract higher level features that are invariant to local spectral and temporal variations.