| Author | Message | ||
     John Tomaszewski Rating: N/A |
Henry and Rick, Thanks for your help. I think the small differences (except for 0.5s and 1s) in the measurements at the first and second photocells were due mostly to "eyeballing" where the signal started and stopped. Sometimes it was fairly ambiguous, especially at the trailing end of the signals. That's kind of what I was asking. It seemed to me that the last digit, measured by this method, was fairly imprecise. I did just notice that I only recorded at 44.1kHz but 48kHz was available. I should have at least done that. The curtain times were 17ms +/- 1ms and again the measurements of the leading curtain were more precise and consistant than those of the trailing curtain, as the signals all started off with a spike but tapered off rather than ending abruptly. If either of you have time, I could send the .wav file. It might tell you more than the numbers can about how well it's working. Or, if you could send me one of your .wav files from a well tuned camera that would tell me a lot as well. Thanks again. John T. |