Hornresp

[screamersusa]

Pardon my ignorance but how do I get to the Tapped horn wizard in the new version? I was using 1.18 I think last. I saw it somewhere in this thread.

[mige0]

Wow, this "sample read out" is a really nice feature.

Any chance we get peak values additionally - or how is rms meant here?

You also calculate 2nd harmonics. What accounts that for ?
When doing combined response - no harmonics get calculated ?

Michael

[BP1Fanatic]

Originally Posted by screamersusa

Pardon my ignorance but how do I get to the Tapped horn wizard in the new version? I was using 1.18 I think last. I saw it somewhere in this thread.

Tools > Loudspeaker Wizard.

[David_Web]

Did you change the IR calculation lately?
I just noticed that the amplitude is a lot closer to what HR simulated than before.
The error with bass boost I reported earlier seems to be gone.

Might have happened at the same time as spectrogram.

Anyway, thanks!

[Don Hills]

Originally Posted by BP1Fanatic

Tools > Loudspeaker Wizard.

It will be greyed out or not present unless you have the current record in Edit mode - go to the Input Parameters window, click Edit, then go Tools -> Loudspeaker Wizard.

[BP1Fanatic]

Correct!

[soho54]

Mr. McBean v28 has been out for a little while now, and I have some questions about when it is best to use the Par calculations instead of the conical.

As there was no new width or starting height input I have been assuming that the Par just calculates a set profile Parabolic dimensioned segment. As the Parabolic oval is a better match for a rectangle it should work out pretty good.

With this in mind is it better to switch over to the Con sections if the horn is running closer to a square at that point of the horn? Or am I totally off on how it works here?

Also do you know if Bjørn has posted/published these calculations anywhere yet, and I have missed it?

[epa]

it would be nice if you can implement x-overs and/or eq in hr.
so if you model f.i. a th ,you can see where hpf cutt of is best for safe opperation,excursion wise,and what you can eq safe.

sorry for my bad english.

[David McBean]

Hi Michael,

Originally Posted by mige0

Any chance we get peak values additionally - or how is rms meant here?

The Sample tool displays the diaphragm displacement as a peak value - it is only the diaphragm velocity and acceleration that are given as rms values. If rms displacement is required, divide the peak value by the square root of 2. Note that all chart results can be exported and manipulated in a spreadsheet if so desired.

Originally Posted by mige0

You also calculate 2nd harmonics. What accounts that for?
When doing combined response - no harmonics get calculated?

The Sample tool calculates the second-harmonic distortion of a single-segment horn only. Essentially, the higher the sound intensity at the horn throat, the higher the distortion.

Kind regards,

David

[David McBean]

Hi David_Web,

Originally Posted by David_Web

Did you change the IR calculation lately?

The impulse response calculations were refined by Jean-Michel during the time he was developing the Hornresp spectrogram algorithms.

Originally Posted by David_Web

I just noticed that the amplitude is a lot closer to what HR simulated than before. The error with bass boost I reported earlier seems to be gone.

Many thanks for this feedback. It would seem from what you say that Jean-Michel's IR changes may have been a step in the right direction :-).

Kind regards,

David