Real-World Evaluation of Multichannel Audio Enhancement Systems Using Acoustic Beacons
State-of-the-art multichannel audio enhancement systems rely on precise estimates of acoustic impulse responses, but these are difficult to estimate from source data alone in noisy and reverberant environments. We propose a measurement system using acoustic beacons attached to the sources of interest. Each beacon produces an inaudible pilot signal that is used to estimate the acoustic impulse responses between the sources and microphones. Using the estimated impulse responses, we can evaluate the achievable performance of multichannel audio enhancement systems in challenging real-world environments.