Acoustic Sensing

Omni-directional electret condenser microphones.

The UPVLC group is involved in different research areas concerning theory and application of statistical signal processing. The main topics covered are related to optimal detection and classification, pattern recognition, independent component analysis, higher-order statistics, time-frequency spectral analysis, array processing and decision fusion. Moreover, these advanced signal processing techniques are being used in several applications including surveillance and monitoring by means of acoustic signals and infrared images.

Multichannel audio data acquisition unit.

One of the main roles of UPVLC in ARtSENSE is devoted to the acoustic scene analysis of the visitor’s environment. To do so, the acoustic events and background noise are captured in real-time using a set of omni-directional electret condenser microphones and a multichannel audio data acquisition unit. Research activities are focused on the acoustic signal processing in order to detect, classify and localize the possible acoustic events that can influence the interest of the visitor. On the other hand, the audio contents need to be relayed to the visitors in a useful manner. Therefore, a multi-channel headphone system will be used to create a given auditory impression and to position the recreated sound sources at a desired location in the artwork.

Multi-channel headphone system.