Method for contoured horn wavefronts similar to JMLC - diyAudio
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Old 3rd April 2014, 08:44 PM   #1
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Default Method for contoured horn wavefronts similar to JMLC

I discovered Jean Michel Le Cleac'h just recently, so I missed him by a few months. What a great loss for us all.

My father had done something similar contemporaneously, and I'm going to try to post some of his papers in case anyone's interested.

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Old 3rd April 2014, 09:08 PM   #2
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Here's a 400 Hz horn with comparison to (flat wavefront approximation) exponential:

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Old 3rd April 2014, 09:15 PM   #3
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This is the way it was done before spreadsheets. Yikes!

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Old 4th April 2014, 01:25 AM   #4
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Many years later, Jack revisited the problem, and here shows a way (in Derive - this is early days of spread sheets) to make the calculations directly, without step-wise approximation.

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Old 24th June 2014, 10:44 AM   #5
Kolbrek is offline Kolbrek  Norway
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Very interesting. Thanks for sharing.

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