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In this paper, a spoken command and control interface that acquires spoken language through demonstrations from the user is discussed. The user can train the system by uttering a command and subsequently demonstrating the required action through an alternative interface. From the demonstration, a bag of semantic concepts representation that represents which semantic concepts are present in the demonstration...
This work examines the use of a Wireless Acoustic Sensor Network (WASN) for the classification of clinically relevant activities of daily living (ADL) from elderly people. The aim of this research is to automatically compile a summary report about the performed ADLs which can be easily interpreted by caregivers. In this work the classification performance of the WASN will be evaluated in both clean...
We propose a method to transform the on line speech signal so as to comply with the specifications of an HMM-based automatic speech recognizer. The spectrum of the input signal undergoes a vocal tract length (VTL) normalization based on differences of the average third formant F3. The high frequency gap which is generated after scaling is estimated by means of an extrapolation scheme. Mel scale cepstral...
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