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- W2124981753 abstract "We investigate four different privacy-sensitive features, namely energy, zero crossing rate, spectral flatness, and kurtosis, for speech detection in multiparty conversations. We liken this scenario to a meeting room and define our datasets and annotations accordingly. The temporal context of these features is modeled. With no temporal context, energy is the best performing single feature. But by modeling temporal context, kurtosis emerges as the most effective feature. Also, we combine the features. Besides yielding a gain in performance, certain combinations of features also reveal that a shorter temporal context is sufficient. We then benchmark other privacy-sensitive features utilized in previous studies. Our experiments show that the performance of all the privacy-sensitive features modeled with context is close to that of state-of-the-art spectral-based features, without extracting and using any features that can be used to reconstruct the speech signal." @default.
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- W2124981753 date "2009-09-06" @default.
- W2124981753 modified "2023-09-23" @default.
- W2124981753 title "Investigating privacy-sensitive features for speech detection in multiparty conversations" @default.
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- W2124981753 doi "https://doi.org/10.21437/interspeech.2009-637" @default.
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