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Tunelab table of partials #2609998
01/30/17 03:54 PM
01/30/17 03:54 PM
Joined: May 2013
Posts: 2,228
Scotland
Beemer Offline OP
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Beemer  Offline OP
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I am confused about the Tunelab Table of Partials. I understood that this set the partial that Tunelab will use when tuning a note.

However when I tuned today I noted that the partial that Tunelab chose was different from what was set in the table.

e.g. A0 has 6th partial set in the table but Tunelab displays the 5th partial.

What relationship could the 5th partial have in the tuning process?

Ian


I'm all keyed up
2016 Blüthner Model A
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Re: Tunelab table of partials [Re: Beemer] #2610009
01/30/17 04:38 PM
01/30/17 04:38 PM
Joined: Jan 2011
Posts: 1,650
Canberra, ACT, Australia
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Chris Leslie Offline
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Because:
A0 is partial 1
A1 is partial 2
E2 is partial 3
A2 is partial 4
C#3 is partial 5
E3 is partial 6
etc

E3 would be used to tune A0 rather than C#3.

Last edited by Chris Leslie; 01/30/17 04:38 PM.

Chris Leslie
Piano technician
http://www.chrisleslie.com.au
Re: Tunelab table of partials [Re: Beemer] #2610026
01/30/17 05:18 PM
01/30/17 05:18 PM
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Scotland
Beemer Offline OP
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Chris,

I'm not understanding your reply with respect to my question about why Tunelab shows that it is using the 5th partial to tune A0

Ian


I'm all keyed up
2016 Blüthner Model A
Re: Tunelab table of partials [Re: Beemer] #2610033
01/30/17 05:37 PM
01/30/17 05:37 PM
Joined: Nov 2010
Posts: 478
Montreal
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pyropaul Offline
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Tunelab is not matching partials like an aural tuner would - it's just using a particular partial to measure. It "knows" what its frequency should be (adjusted by its model of inharmonicity). It doesn't matter if it's a dissonant one or one that has no match in any other note that a tuner would use in a pair.

Paul

Re: Tunelab table of partials [Re: Beemer] #2610035
01/30/17 05:48 PM
01/30/17 05:48 PM
Joined: Jan 2004
Posts: 2,056
Chicagoland
RonTuner Offline
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Beemer, do you have the "smartpartial" setting enabled? That means, as I understand it, that tunelab will use the strongest partial in the lower range of the piano to drive the display...

Just guessing!

Ron Koval

Re: Tunelab table of partials [Re: Beemer] #2610036
01/30/17 05:49 PM
01/30/17 05:49 PM
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Canberra, ACT, Australia
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Chris Leslie Offline
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I thought you may be thinking that, for example, from A0 that A1 is partial 1, but it actually is partial 2. Therefore, the partial Tunelab measures, which is probably E3, is partial 6 and not partial 5.

Last edited by Chris Leslie; 01/30/17 05:51 PM.

Chris Leslie
Piano technician
http://www.chrisleslie.com.au
Re: Tunelab table of partials [Re: Beemer] #2610104
01/30/17 10:53 PM
01/30/17 10:53 PM
Joined: Oct 2011
Posts: 790
Lincoln, NE
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That Guy Offline
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Ron is correct. Go to "Settings", then "Auto Partial Selection". You can then select the range that you want it to work in (usually the wound string section) or if you scroll to the top it says "disabled". TuneLab will switch to the strongest partial in the section you pick. You can also decide if you want the switch to be "persistent" (permanent) or not. Go back to the settings page and right under "Auto Partial Selection" is "Persistent Partials". Tap on that and you can choose yes or no. Incidentally, if you choose persistent partials you can then look at the Tuning Curve page and see the partial changes. When you save the tuning those changes will also be saved.


"That Tuning Guy"
Scott Kerns
Lincoln, NE
www.thattuningguy.com
Re: Tunelab table of partials [Re: Beemer] #2610187
01/31/17 03:30 AM
01/31/17 03:30 AM
Joined: May 2013
Posts: 2,228
Scotland
Beemer Offline OP
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Ron,

You were correct I did have auto partial set from E3 downward and up to partial seven.

I also had not been realising that Tunelab would use both odd and even partials.

thanks,

Ian


I'm all keyed up
2016 Blüthner Model A
Re: Tunelab table of partials [Re: Chris Leslie] #2610204
01/31/17 04:37 AM
01/31/17 04:37 AM
Joined: May 2013
Posts: 2,228
Scotland
Beemer Offline OP
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Originally Posted by Chris Leslie
I thought you may be thinking that, for example, from A0 that A1 is partial 1, but it actually is partial 2. Therefore, the partial Tunelab measures, which is probably E3, is partial 6 and not partial 5.


Hi Chris,

That thought had crossed my mind because of the statement in my Reblitz book that the US start with A0 as A1 but regardless that would not ripple upwards partial wise. The answer as you will have read was that I had auto partial selection ON and that I did not realise that Tunelab, if auto partial is on, will always switch to the strongest partial odd or even.

Slightly off topic but I'm wondering if, only in the US, A0 is called A1, as stated by Arthur Reblitz?

Ian


I'm all keyed up
2016 Blüthner Model A
Re: Tunelab table of partials [Re: Beemer] #2610296
01/31/17 11:59 AM
01/31/17 11:59 AM
Joined: Dec 2003
Posts: 348
Minnesota
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Robert Scott Offline
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Minnesota
Originally Posted by Beemer
The answer as you will have read was that I had auto partial selection ON and that I did not realise that Tunelab, if auto partial is on, will always switch to the strongest partial odd or even.

TuneLab will switch partials only if the strongest partial is at least twice as strong as the current partial. If it is only a little bit stronger, it will not switch.


Robert Scott
Hopkins, Minnesota
http://www.tunelab-world.com
Re: Tunelab table of partials [Re: Beemer] #2610461
01/31/17 09:56 PM
01/31/17 09:56 PM
Joined: Jun 2001
Posts: 4,861
USA
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Bob Offline
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USA
Correct me if I'm wrong, but I think if you save the file after tuning, the partial changes save with it.




Re: Tunelab table of partials [Re: Bob] #2610484
01/31/17 11:29 PM
01/31/17 11:29 PM
Joined: Dec 2003
Posts: 348
Minnesota
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Robert Scott Offline
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Minnesota
Originally Posted by Bob
Correct me if I'm wrong, but I think if you save the file after tuning, the partial changes save with it.

Yes, but only if you have the "Persistent Partials" switch turned on.


Robert Scott
Hopkins, Minnesota
http://www.tunelab-world.com

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