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The problem of single-source localization with ad hoc microphone networks in noisy and reverberant enclosures is addressed in this paper. A training set is formed by prerecorded measurements collected in advance and consists of a limited number of labelled measurements, attached with corresponding positions, and a larger number of unlabelled measurements from unknown locations. Further information...
In this paper we describe a new multichannel room impulse responses database. The impulse responses are measured in a room with configurable reverberation level resulting in three different acoustic scenarios with reverberation times RT60 equals to 160 ms, 360 ms and 610 ms. The measurements were carried out in recording sessions of several source positions on a spatial grid (angle range of −90° to...
In this contribution two different disciplines for designing microphone array beamformers are explored. On the one hand a fixed beamformer based on numerical near field optimization is employed. On the other hand an adaptive beamformer algorithm based on the linearly constrained minimum variance (LCMV) method is applied. For the evaluation, an audio-database for microphone array impulse responses...
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