Day 2

Current Temp: 99 degrees F
Humidity: 57%
Precipitation: 6%
Wind: 12.46 MPH / S
Pressure: 29.83 Hg
Dew Point: 61 F

There is so much important information coming in but a few highlights of Day 2,

We learned to decipher the SIM3 phase trace. With LF on the left and HF on the right, the general concept is that when you’re going down hill (breaking) you’re in the past. When you’re on the flat lands you’re in the present (coasting) and when you’re downshifting and applying throttle (climbing), you’re in the future. If you find a point on the trace where it goes vertical, you’ve experiences a rotation of phase. For example 180,360, etc…

For a phase corrected loudspeaker such as the Meyer ????, you may have only (1) vertical point which is near perfect for a 2 way loudspeaker.

INSERT TRACE

and how to find the -6 db contour of a speaker starting with ON AX NEAR, OFF AX NEAR, ON AX FAR, OFF AX FAR, and then working along a curve where you lose spl by traveling off axis but gain it by moving closer to the speaker.

If I can get some photos of the tape on the floor we used to graph out the contour, I’ll add it here. Same for one of the phase traces.

Today it finally cooled down a bit in the afternoon and then started to rain a bit in the evening.

Bob & Jason had dinner with Bill Eckenloft & his associate Declan and myself and discussed Broadway sound design.