Parkinson’s disease is a neurological disorder that affects patient’s motor function including speech articulation. There is no cure for Parkinson’s disease. Speech and motor function declines as the disease progresses. Automatic assessment of the disease condition may advance the treatment of Parkinson’s disease with objective, inexpensive measures. Speech acoustics, which can be easily obtain...

This study is a contribution to link the abstract phonological level to the acoustic signal level by identifying the main acoustic correlates for the distinctive feature set developed by Chomsky and Halle (1968). The acoustic features were extracted by the openSMILE toolkit from spontaneous speech data. For each distinctive feature a set of closely related acoustic features was derived by means...

The problem of creating a multiuser hands-free immersive telecommunications environment poses many challenges for acoustic signal processing. The most pressing is the creation of a fast multi-channel acoustic echo canceller (MCAEC) to eliminate acoustic feedback created in the speaker-microphone loop. Traditional multi-channel adaptive algorithms for echo cancellation are not fast enough to wor...

The baryon acoustic oscillation feature can be used as a standard cosmological ruler. In practice, for sub-percent level accuracy on the distance scale, it must standardized. physical reason why is understood, so we use this to develop an algorithm which improves estimated scale. exploits fact that, over range of scales where initial correlation function well-fit by polynomial, leading order ef...

Active control of water losses is an essential strategy to increase the efficiency of urban water supply systems. This work deals with the early detection of leaks occurring in small-diameter service pipes of water distribution networks. Preliminary experiments were conducted in a test facility to assess the sensitivity of Acoustic Emission methods to leaking water flows. Acoustic Emission meas...

Time delay estimation is a basic building block of an acoustic source localization system. Such a system must cope with adverse acoustic conditions to be generally applicable, i.e. high reverberation times and low signal-to-noise ratios. In general, better results can be achieved if multiple channels are considered. We propose an extension of a mutual information based delay estimator to the mu...