Hi BP1Fanatic,
Not sure I understand the problem
.Cylinder cross-sectional area = Vrc / Lrc = 33.56 * 1000 / 20.32 = 1651.57 cm^2 (rounded to 2 decimal places).
If S1 = 1651.57 cm^2, S2 = 1651.57 cm^2 and L12 = 20.32 cm, the volume of the segment is 1651.57 * 20.32 / 1000 = 33 .56 litres, the same as for Vrc, as expected.
Am I missing something here?
Stay safe,
David
Hi Mårten,
My reply to 'Booger weldz' in Post #10655 applies to your case also
.You have specified a stepped segment design, as shown in Attachment 1.
In the main calculation it is simulated as shown in Attachment 2.
In the Loudspeaker Wizard it is simulated as shown in Attachment 3.
Not that it affects the results, but the thing I don't understand is how you managed to end up with more than two decimal places for the exported segment area and length values, as shown in Attachment 4.
Stay safe,
David
Attachments
Hi kipman725,
Not without adding a new input parameter to specify the cross-sectional area at the outlet end of the port tube. This would require changes to so many parts of the program that it is simply not a practical option.
(A throat adaptor on a standard Nd design can be flared because S1 becomes the outlet area).
Stay safe,
David
Hi Brian,
It should already be there, as shown in the attachment.
Stay safe,
David
Attachments
It's included in the initial Import process. However pressing F6 in the Loudspeaker Wizard doesn't reset the value for "Path" in the sim to the new value in the import file.
???
Since when?
All I did was switch from Ap1 to Ap. I was trying to model a BR, but HR wouldn't let switch the function. I had to do a FLH/BP6P/CH to get the function to work.
Attachments
Hi Mårten,
My reply to 'Booger weldz' in Post #10655 applies to your case also
Thanks David!
I suggest that you either remove the wizard for stepped simulations, or limit the functionality to allow everything except changing areas.
This is because I am generating the hornresp record from my cad software. I attached a screenshot
Attachments
What I really want simulate is filling in section 1. Can I reduce the resonances at 66 Hz and 99 Hz?
Thanks for the additional information. The Path value will refresh in the next update.
Yes, but I still don't understand what you mean by "switch from round to square"
.That's because Ap1 refers to either a throat adaptor in the case of a normal horn, or a throat port in the case of an offset driver horn. It is not applicable to a standard bass reflex system, where Ap is used instead.
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That's unlikely to happen. Too much work went into implementing the functionality in the first place, to now throw it all away
.Ah, now I understand. Mystery solved. Thanks.
In that case, I suggest you approximate the stepped segment system with an unstepped system. Make the unstepped radius at S2 equal to the average of the two stepped radii at S2, and the unstepped radius at S3 equal to the average of the two stepped radii at S3. This means that S2 then becomes 1342.40 cm^2 and S3 becomes 2386.24 cm^2.
Yes, but including the absorbent filling material in segment 2 rather than in segment 1, will have a more pronounced effect.
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Too much work went into implementing the functionality in the first place, to now throw it all away
Another reason for keeping it, is that it enables the user to experiment with all sorts of different setups
.Attachments
That's unlikely to happen. Too much work went into implementing the functionality in the first place, to now throw it all away
My other suggestion maybe? If the reason for not simulating stepped segments is the number of sliders, you can disable the area sliders if the simulation is stepped.