Advancements in instrumentation for source identification
Matthew V. Golden · The Journal of the Acoustical Society of America · 2012
In the beginning, acousticians only had their ears to identify sources. Today we have many more advanced instrumentation, even more than the simple intensity probe that we had just a few decades ago. This paper will review several of these new devices. The first will be an Intensity Tracking System that uses machine vision to produce sound intensity maps. The second is an Acoustic Camera that uses 256 microphones in a two dimension array to create real time videos of the sound field overlaid with standard video. The final instrument will be an environmental noise monitor that uses the arrival times at multiple microphones to detect the location of sources in three dimensional space. Real life measurement results will be shown from each instrument. These new tools give acousticians far more tools than they had just a few years ago.