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ICASSP
2010
IEEE
15 years 7 months ago
Quantization and compensation in sampled interleaved multi-channel systems
This paper considers the environment of interleaved, multi-channel measurements as arises for example in time-interleaved A/D converters and in distributed sensor networks. Such s...
Shay Maymon, Alan V. Oppenheim
193
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ICASSP
2010
IEEE
15 years 7 months ago
Compressive detection for wide-band spectrum sensing
In this paper we propose a novel wide-band spectrum sensing scheme using compressive sensing. The wide-band signal is fed into a number of wide-band filters and the outputs of th...
Veria Havary-Nassab, Sadiq Hassan, Shahrokh Valaee
ICASSP
2010
IEEE
15 years 4 months ago
Energy-based multi-speaker voice activity detection with an ad hoc microphone array
In this paper, we propose an energy-based technique to track the power of multiple simultaneous speakers using an ad hoc microphone array with unknown microphone positions. By con...
Alexander Bertrand, Marc Moonen
ICASSP
2011
IEEE
14 years 10 months ago
Converting 5.1 audio recordings to B-format for directional audio coding reproduction
A method to transform 5-channel surround sound signals to Bformat is proposed, which provides unaltered spatial qualities when reproduced with directional audio coding (DirAC). Th...
Mikko-Ville Laitinen, Ville Pulkki
ICASSP
2011
IEEE
14 years 10 months ago
Time-lagged Directed Information
Directed Information (DI) has recently been introduced to quantify the causality between two signals. However, one major remaining issue with DI is the computational complexity wh...
Ying Liu, Selin Aviyente