Open Access:
IEEE Transactions on Signal Processing
Authors:
Christine Evers and Patrick A. Naylor
Abstract:
In many applications, sensors that map the positions of objects in unknown environments are installed on dynamic platforms. As measurements are relative to the observer's sensors, scene mapping requires accurate knowledge of the observer state. However, in practice, observer reports...
IEEE Xplore:
IEEE/ACM Transactions on Audio, Speech, and Language Processing
Authors:
Alastair H. Moore, Christine Evers, and Patrick A. Naylor
Abstract:
Direction of arrival (DOA) estimation is a fundamental problem in acoustic signal processing. It is used in a diverse range of applications, including spatial filtering, speech dereverberation, source separation and diarization. Intensity vector-based DOA...
SpringerLink Access:
in Journal of Signal Processing Systems, vol. 63, no. 3, pp. 315–332, 2011
Authors:
C. Evers and J. R. Hopgood
Abstract:
Room reverberation leads to reduced intelligibility of audio signals and spectral coloration of audio signals. Enhancement of acoustic signals is thus crucial for high-quality audio and scene analysis applications. Multiple sensors can be...
IEEEXplore Access:
in IET Signal Processing, vol. 2, no. 2, pp. 59–74, June, 2008
Authors:
C. Evers and J. R. Hopgood
Abstract:
Single-channel blind dereverberation for the enhancement of speech acquired in acoustic environments is essential in applications where microphone arrays prove impractical. In many scenarios, the source-sensor geometry is not varying rapidly, but in...
Scitation Access:
in The Journal of the Acoustical Society of America, vol. 123, no. 5, pp. 3586–3586, 2007
Authors:
J. R. Hopgood, C. Evers , and J. Bell
Abstract:
Audio signals in confined spaces exhibit reverberation due to reflections off surrounding obstacles. Moreover, the signal is distorted by noise, usually modeled as an additive signal...
