14,052 research outputs found
Feature Learning from Spectrograms for Assessment of Personality Traits
Several methods have recently been proposed to analyze speech and
automatically infer the personality of the speaker. These methods often rely on
prosodic and other hand crafted speech processing features extracted with
off-the-shelf toolboxes. To achieve high accuracy, numerous features are
typically extracted using complex and highly parameterized algorithms. In this
paper, a new method based on feature learning and spectrogram analysis is
proposed to simplify the feature extraction process while maintaining a high
level of accuracy. The proposed method learns a dictionary of discriminant
features from patches extracted in the spectrogram representations of training
speech segments. Each speech segment is then encoded using the dictionary, and
the resulting feature set is used to perform classification of personality
traits. Experiments indicate that the proposed method achieves state-of-the-art
results with a significant reduction in complexity when compared to the most
recent reference methods. The number of features, and difficulties linked to
the feature extraction process are greatly reduced as only one type of
descriptors is used, for which the 6 parameters can be tuned automatically. In
contrast, the simplest reference method uses 4 types of descriptors to which 6
functionals are applied, resulting in over 20 parameters to be tuned.Comment: 12 pages, 3 figure
Transferable Positive/Negative Speech Emotion Recognition via Class-wise Adversarial Domain Adaptation
Speech emotion recognition plays an important role in building more
intelligent and human-like agents. Due to the difficulty of collecting speech
emotional data, an increasingly popular solution is leveraging a related and
rich source corpus to help address the target corpus. However, domain shift
between the corpora poses a serious challenge, making domain shift adaptation
difficult to function even on the recognition of positive/negative emotions. In
this work, we propose class-wise adversarial domain adaptation to address this
challenge by reducing the shift for all classes between different corpora.
Experiments on the well-known corpora EMODB and Aibo demonstrate that our
method is effective even when only a very limited number of target labeled
examples are provided.Comment: 5 pages, 3 figures, accepted to ICASSP 201
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