- Research Article
- Open Access
Sector-Based Detection for Hands-Free Speech Enhancement in Cars
EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 020683 (2006)
Adaptation control of beamforming interference cancellation techniques is investigated for in-car speech acquisition. Two efficient adaptation control methods are proposed that avoid target cancellation. The "implicit" method varies the step-size continuously, based on the filtered output signal. The "explicit" method decides in a binary manner whether to adapt or not, based on a novel estimate of target and interference energies. It estimates the average delay-sum power within a volume of space, for the same cost as the classical delay-sum. Experiments on real in-car data validate both methods, including a case with km/h background road noise.
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Lathoud, G., Bourgeois, J. & Freudenberger, J. Sector-Based Detection for Hands-Free Speech Enhancement in Cars. EURASIP J. Adv. Signal Process. 2006, 020683 (2006). https://doi.org/10.1155/ASP/2006/20683
- Information Technology
- Output Signal
- Control Method
- Quantum Information
- Interference Cancellation