Concept
Microphonics
Publications associées (13)
Novel GCC-PHAT Model in Diffuse Sound Field for Microphone Array Pairwise Distance Based Calibration
Hervé Bourlard, Afsaneh Asaei, Mohammadjavad Taghizadeh
We propose a novel formulation of the generalized cross correlation with phase transform (GCC-PHAT) for a pair of microphones in diffuse sound field. This formulation elucidates the links between the microphone distances and the GCC-PHAT output. Hence, it ...
2015Probabilistic acoustic
During my doctoral project I studied probabilistic models for acoustics and time-of-flight setups. The project consisted of solving the simultaneous localization and mapping problem ─ building a map of acoustic sources from time-of-flight measures obtained ...
2015Structured Sparse Coding for Microphone Array Location Calibration
Hervé Bourlard, Volkan Cevher, Afsaneh Asaei
We address the problem of microphone location calibration from a sparse coding perspective where the sensor positions are approximated over a discretized grid. We characterize the microphone signals as a sparse vector represented over a codebook of multi-c ...
2012Structured Sparse Coding for Microphone Array Location Calibration
Hervé Bourlard, Volkan Cevher, Afsaneh Asaei
We address the problem of microphone location cali- bration where the sensor positions have a sparse spatial approximation on a discretized grid. We characterize the microphone signals as a sparse vector represented over a codebook of multi-channel signals ...
2012Method and Device for Removing Echo in an Audio Signal
Acoustic echo control and noise suppression is an important part of any "handsfree" telecommunication system, such as telephony or audio or video conferencing systems. Bandwidth and computational complexity constraints have prevented that stereo or multi-c ...
2010