Traversing Microphone Spectra: A New Technique for Analysis of Room Acoustics

Room acoustics simulation for multichannel microphone arrays

A new and efficient room acoustics simulation software package for MATLAB is presented which can simulate recordings of arbitrary microphone arrays within an echoic room. This simulator supports research related to developing and experimenting with multichannel microphone arrays and higher order ambisonic playback. Based upon the work by Schimmel et al. [1], this new simulation software package...

Microphone Array Feedback Suppression for Indoor Room Acoustics

The objective of this project was to use a standoff microphone array to suppress feedback for a microphone-loudspeaker system in an indoor environment. When the gain on the amplifying loudspeaker is too high, the sounds from the loudspeaker that are picked by the microphone keep being re-amplified until there is a loud squeal in a process called feedback. This limits the amount of gain that can...

New probe microphone for investigating the acoustics of the ear.

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For Assessing Room Acoustics

Analysis of the average performance of the multi-channel Wiener filter for distributed microphone arrays using statistical room acoustics

For most multi-microphone noise reduction algorithms, e.g. the multi-channel Wiener filter (MWF), it is well known that the performance depends on the acoustic scenario at hand, i.e. the used microphone array, the position of the desired source and the noise field. Since the position of the desired source is not always known a priori, it is of great interest in many applications to be able to c...