FREQUENCY-AWARE CNN FOR OPEN SET ACOUSTIC SCENE CLASSIFICATION Technical Report

This report describes systems used for Task 1c of the DCASE 2019 Challenge Open Set Acoustic Scene Classification. The main system consists of a 5-layer convolutional neural network which preserves the location of features on the frequency axis. This is in contrast to the standard approach where global pooling is applied along the frequency-related dimension. Additionally the main system is combined with an ensemble of calibrated neural networks in order to improve generalization.