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1	Silent speech command word recognition using stepped frequency continuous wave radar Wagner, Christoph, Schaffer, Petr, Digehsara, Pouriya Amini, Bärhold, Michael, Plettemeier, Dirk, Birkholz, Peter 19 April 2024 (has links) Recovering speech in the absence of the acoustic speech signal itself, i.e., silent speech, holds great potential for restoring or enhancing oral communication in those who lost it. Radar is a relatively unexplored silent speech sensing modality, even though it has the advantage of being fully non-invasive. We therefore built a custom stepped frequency continuous wave radar hardware to measure the changes in the transmission spectra during speech between three antennas, located on both cheeks and the chin with a measurement update rate of 100 Hz. We then recorded a command word corpus of 40 phonetically balanced, two-syllable German words and the German digits zero to nine for two individual speakers and evaluated both the speaker-dependent multi-session and inter-session recognition accuracies on this 50-word corpus using a bidirectional long-short term memory network. We obtained recognition accuracies of 99.17% and 88.87% for the speaker-dependent multi-session and inter-session accuracy, respectively. These results show that the transmission spectra are very well suited to discriminate individual words from one another, even across different sessions, which is one of the key challenges for fully non-invasive silent speech interfaces. info:eu-repo/classification/ddc/500 ddc:500 info:eu-repo/classification/ddc/600 ddc:600
2	Cross-Functional Team Performance: Inquiry, Identity, and Shared Reality Johnson, Susan L. 01 June 2020 (has links) No description available. Behavioral Sciences Business Administration Business Community Communication Management Social Research Social Structure Social Psychology Technology Sustainability Sociology Organizational Behavior Organization Theory Information Technology Philosophy of Science Cognitive Psychology Behavioral Psychology cross-functional project teams cross-boundary communication shared goals shared reality functional identity team performance communication clarity communication frequency

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Silent speech command word recognition using stepped frequency continuous wave radar

Cross-Functional Team Performance: Inquiry, Identity, and Shared Reality