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Recognition of Audio Events Using Deep Neural Networks
 Uchytil, Albert ; Černocký, Jan (oponent) ; Schwarz, Petr (vedoucí práce)
A lot of information is carried in sound. The amount of audio data is increasing with a growing technical level of the society. With more data, the task of processing it gets harder for human beings. This thesis is about recognition of audio events using neural networks. We focused on classification of phonemes and their categories. We used the Multilayer perceptron model as a classifier. We examined the relation between the accuracy of the model and its properties. Our goal was to estimate the network setup to obtain the best results. The accuracy is influenced by input features. We examine the relation between a type of the features and the success rate. The differences between input feature types are reduced by using the context. The bigger context we use the better results we get. Problem is, when contexts overlap, overlapping leads to a higher error rate. We have used a neural network with three hidden layers.
Úplný záznam
Recognition of Audio Events Using Deep Neural Networks
 Uchytil, Albert ; Černocký, Jan (oponent) ; Schwarz, Petr (vedoucí práce)
A lot of information is carried in sound. The amount of audio data is increasing with a growing technical level of the society. With more data, the task of processing it gets harder for human beings. This thesis is about recognition of audio events using neural networks. We focused on classification of phonemes and their categories. We used the Multilayer perceptron model as a classifier. We examined the relation between the accuracy of the model and its properties. Our goal was to estimate the network setup to obtain the best results. The accuracy is influenced by input features. We examine the relation between a type of the features and the success rate. The differences between input feature types are reduced by using the context. The bigger context we use the better results we get. Problem is, when contexts overlap, overlapping leads to a higher error rate. We have used a neural network with three hidden layers.
Úplný záznam

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