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Re: tuning the longitudinal mode [Re: pianolive] #1977505
10/23/12 08:39 AM
10/23/12 08:39 AM
Joined: May 2010
Posts: 153
Germany
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Originally Posted by pianolive
Yes Isac, I can help you with the book.
I do not know who sells the software. Ask the man who made it.
I will send you his mail adress through the Forum.

Hi pianolive, if I read correctly, you own the book "Praxisorientierte Mensuration mit dem Computer". Can you tell me, if the software "Turbo-Mensuration" is included?
@Isaac: Have you bought the book in the meantime?


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Re: tuning the longitudinal mode [Re: Gadzar] #1977857
10/24/12 04:02 AM
10/24/12 04:02 AM
Joined: Mar 2008
Posts: 9,230
France
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France
Hello, I m pretty sure I have that book somewhere, but I did not find it yet.

The software, I had, it was 20 years ago on a 5' floppy wink

If I understand well there are 2 computing methods, , one is the TF 65, developed by Klaus Fenner, the other is the one from Peter Tholey.
AT thoses times only one kind of piano wire was taken in account (Roslau) I dont recall any possibility to enter a different one (more hard, or less, different carbon content, or/and differntt annealing) The one I find that try to give comparisons between different and original type of wire is named Bonamens, and did not obtain any success, may be because it was not advertised much, only used by the "pure sound" people...

Too bad, as this fine development could behave evolved , little bugs fixed, I never understood why such a tool did not receive more aknowledgment (there is even a forum, empty)

http://www.bonamens.nl/component/option,com_frontpage/Itemid,1/lang,en/




Last edited by Kamin; 10/25/12 03:49 AM.

Professional of the profession.
Foo Foo specialist
I wish to add some kind and sensitive phrase but nothing comes to mind.!
Re: tuning the longitudinal mode [Re: Olek] #1978327
10/25/12 02:27 AM
10/25/12 02:27 AM
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Germany
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For my recent (and first smile ) restringing, I created an Excel file and optimized the tension and inharmocity based on the original wire sizes. That worked quite fine, but I thought, a software supporting this task would be fine.

I will check Scale Ripper.


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Re: tuning the longitudinal mode [Re: Gadzar] #1978376
10/25/12 06:07 AM
10/25/12 06:07 AM
Joined: Mar 2008
Posts: 9,230
France
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France
We have a particular problem in France with French pianos, that where stringed with piano wire having a lower MOE than Roslau or US wire , so the iH was lower originally (and constrain was often very high) more gauges than with Roslau or actual system, so there is a better evening in the thickest diameters, but a large part of the particular tone of French pianos was due to that wire (Firminy wire).

Different hardness depending of the era, probably, but in any case the metal was certainly excellent.

Those wire could be find (rarely) on restringing jobs up to the 60's, as the product was yet sold, but many where using Roslau wire yet.

Mounting Roslau on some of those scales lend to a nasal underconstrained wire with too high iH.

We dont have such a problem with most old German pianos



Last edited by Kamin; 10/25/12 06:08 AM.

Professional of the profession.
Foo Foo specialist
I wish to add some kind and sensitive phrase but nothing comes to mind.!
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Re: tuning the longitudinal mode [Re: Gadzar] #2030289
02/10/13 07:11 AM
02/10/13 07:11 AM
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I can not answer your question, but I thank you for the pointer to the 5 lectures.
Although presented 25 years ago I found the content interesting, maybe I will understand more of it on subsequent readings (-:

Re: tuning the longitudinal mode [Re: R_B] #2030293
02/10/13 07:17 AM
02/10/13 07:17 AM
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France
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Originally Posted by R_B
I can not answer your question, but I thank you for the pointer to the 5 lectures.
Although presented 25 years ago I found the content interesting, maybe I will understand more of it on subsequent readings (-:


They are good but new theories came later, I cannot go in details but that research work is far from being finished.


Last edited by Olek; 02/10/13 07:18 AM.

Professional of the profession.
Foo Foo specialist
I wish to add some kind and sensitive phrase but nothing comes to mind.!
Re: tuning the longitudinal mode [Re: Olek] #2030785
02/10/13 08:26 PM
02/10/13 08:26 PM
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Originally Posted by Olek
Originally Posted by R_B
I can not answer your question, but I thank you for the pointer to the 5 lectures.
Although presented 25 years ago I found the content interesting, maybe I will understand more of it on subsequent readings (-:


They are good but new theories came later, I cannot go in details but that research work is far from being finished.



One could "ASSUME" that research has continued, or that the demise of the piano's popularity has caused the topics to be abandoned.
Advances in computer modelling would suggest that the subject could be explored more economically now that 80s era super computer power is available in laptops.

I am very much interested in the later work.
My background is in engineering, not music.
I can grasp the physics and math while TRYING to appreciate the musical aspects (-:

Thanks,

Re: tuning the longitudinal mode [Re: R_B] #2030905
02/11/13 02:24 AM
02/11/13 02:24 AM
Joined: Feb 2011
Posts: 2,511
Suffolk, England
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Suffolk, England
Originally Posted by R_B
I am very much interested in the later work.
My background is in engineering, not music.
I can grasp the physics and math while TRYING to appreciate the musical aspects

There are some references to l-modes and l-waves in the "Quadra(tic) effect ..." thread.


Ian Russell
Schiedmayer & Soehne, 1925 Model 14, 140cm
Ibach, 1905 F-IV, 235cm
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