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<blockquote data-quote="Frank Koenig" data-source="post: 125269" data-attributes="member: 416">Re: My Current SH46 SettingsI actually have 4 SH46s, so I suppose I could. I&#039;ve never tried them arrayed more than 2 together, but I&#039;d like to sometime. Trouble is I can only fly 2 at a time from my towers, so I would need some other means of support, like a JLG-style lift. Maybe at (Palo Alto) Airport Day this year, if they want me and if they want to rent the lift.Here is a Smaart plot, as requested. It&#039;s just a single point (a little off-axis) near-field measurement taken in a reverberant environment and includes the effect of an 80Hz LR24 HPF. So it&#039;s not a substitute for the real thing. At least with an SH-46 near field measurement is possible, since all the sound comes out of one hole. The data on which my settings are based were made with 2 arrayed SH-46s. Better measurements to follow.[ATTACH]153677[/ATTACH]Here is a frequency response magnitude plot of the process that leads to the minimum phase filter.[ATTACH]153678[/ATTACH]The FR plot shows the amplitude-normalized FR magnitudes smoothed at 1/24 octave in colors and the trimmed-mean magnitude smoothed at ~1/6 octave with the ends extrapolated, in black.&nbsp; That gets inverted to becomes the prototype filter.The &quot;after&#039; TFE includes the effect of the single IIR peaking filter that attempts to quash the resonance at ~270 Hz.[ATTACH]153679[/ATTACH][ATTACH]153680[/ATTACH]Bear in mind that all these, except the Smaart plot, are &quot;fakes&quot; in that they are derived by applying the processing to the original data in software.--Frank</blockquote>

[QUOTE="Frank Koenig, post: 125269, member: 416"] Re: My Current SH46 Settings I actually have 4 SH46s, so I suppose I could. I've never tried them arrayed more than 2 together, but I'd like to sometime. Trouble is I can only fly 2 at a time from my towers, so I would need some other means of support, like a JLG-style lift. Maybe at (Palo Alto) Airport Day this year, if they want me and if they want to rent the lift. Here is a Smaart plot, as requested. It's just a single point (a little off-axis) near-field measurement taken in a reverberant environment and includes the effect of an 80Hz LR24 HPF. So it's not a substitute for the real thing. At least with an SH-46 near field measurement is possible, since all the sound comes out of one hole. The data on which my settings are based were made with 2 arrayed SH-46s. Better measurements to follow. [ATTACH=CONFIG]153677.vB5-legacyid=10443[/ATTACH] Here is a frequency response magnitude plot of the process that leads to the minimum phase filter. [ATTACH=CONFIG]153678.vB5-legacyid=10444[/ATTACH] The FR plot shows the amplitude-normalized FR magnitudes smoothed at 1/24 octave in colors and the trimmed-mean magnitude smoothed at ~1/6 octave with the ends extrapolated, in black. That gets inverted to becomes the prototype filter. The "after' TFE includes the effect of the single IIR peaking filter that attempts to quash the resonance at ~270 Hz. [ATTACH=CONFIG]153679.vB5-legacyid=10445[/ATTACH][ATTACH=CONFIG]153680.vB5-legacyid=10446[/ATTACH] Bear in mind that all these, except the Smaart plot, are "fakes" in that they are derived by applying the processing to the original data in software. --Frank [/QUOTE]

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