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Project #2 - Single Point vs Discrete DOCUMENTATION - Part 2 |
The front-left discrete microphone with its windscreen.
Note the two 9-volt batteries and a power switch; the
black audio cable terminates in an XLR connector.
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Next was a commercial jet on a landing approach to the Austin airport.
Relatively, the variance of distance from each of the microphones was
miniscule, yet the phasing distortion was quite evident in the discrete
recording.
The last and longest segment was really remarkable luck. The neighbor's lawnboy arrived and began to mow the grass across the street. A child walked by with a rattle probably made at his nearby school in celebration of Cinco de Mayo (a Mexican celebration). A car also passes by, and children can be heard talking. The wind has picked up and is rather brisk, disturbing the discrete microphones. It would have been difficult to find this sequence in the woods where I had first intended to record. The child with the rattle and the birds were the most obvious differences between the true localization pattern of the tetrahedral ambisonic mic and the individual mics. While I was recording, I was almost surprised that the child did not step on the front-left microphone. He obviously was not paying attention to what was in the grass, even with an orange windscreen, a white cable, and the batteries! This project brings closure to a great ACTLab mystery. What began with a discovery of the 5.1 playback system in the ACTLab Studio during my first Blackbox course has been a real trip in learning and teaching. A special thanks to Sandy Stone and Joey Lopez. It has been a wonderful and fruitful trip. |