Fall Teaching Tour: Vilnius

This is the 3rd year in a row that I have done a set of SIM Seminar in the fall in Europe. In the previous years we did Montebaur Germany (2x) and London (2x) and Madrid (1x). This year we mixed it up with two new cities: Vinius and Berlin and a 3rd round of […]

Morristown Community Theater SIM3 Tuning

This has been a busy week for tunings. in an 8 day period I am scheduled to do two jobs: Morristown Community Theater and Carnegie Hall. The Morristown job is done and I am half way through Carnegie at this moment. The Morristown system was a really interesting tuning. It was a room/system that had everything you might […]

Tokyo Seminar – 23 years of relationships

The sign reads ” Meyer Sound SIM3 Se-mi-NA (seminar) Our seminar was held on the 47th floor of the Sumitomo building in Shinjuku, a high rise area of western Tokyo in August of 2010. Shinjuku has the highest concentration of tall buildings in Tokyo and is a huge railway hub. A great location that everyone […]

UCI Line array tuning description updated – SIM data added

I finally got the time to sort through the SIM traces from the UCI line array tuning. The SIM data is now present in the UCI seminar post located here.  This took a long time but it is actually some of the clearest data I have had a chance to put together. 99% of the […]

Macau COD Tuning: Day 7 (Underwater SIM) – Updated with screen dumps

Today was scattered around different tasks. We tested the repositioned Sound Beams, further refined the Constellation settings, picked off stragglers in need of verification – or RE-verification, and finally SIM’d the underwater speakers. Soundbeams repositioned First order of business was to find out what we had gained from moving the SB-2’s up 2 meters. The […]

Macau COD Tuning: Day 5 (Cardioid sub day)

Looking for Mr. Cardioid During the daytime (remember that we start at 11pm) the crew set up 2 measurement mics for us high in the grid. The mics were placed as a front/back pair in the near field of the coupled subwoofer array. The goal was to measure the responses in front and behind on the center axis […]

Latest news………

Feb 12:  Added War story #2 Feb 11:  added Part IV to the impulse response saga. That’s all I have to say on that for the moment, pending any comments or questions School news:  We just added a SIM school on to my schedule: New York City,  May 17-20 6o6

Interpreting Coherence on the FFT Analyzer

When we make the transition from the simplistic renderings of one-dimensional acoustical analysis, i.e: those that present amplitude only, we have several new traces to contend with. The most notable are phase and coherence. Phase is often minimally grasped and coherence even less so. These are both difficult because we don’t have simple mechanisms in […]