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Verituner settings

  • 1.  Verituner settings

    Member
    Posted 7 days ago

    I will preface this by saying - yes, I eventually will tune aurally, but right now, verituner is how I get the job done. Meaning - I don't really want to see a dozen "you'll never learn aural tuning if you keep using ETDs" replies.

    During some tuning instruction I've had, it was pointed out to me that while Verituner does a pretty good job in the midsection of the piano, the targets in the bass were multiple cents sharp where they would be set aurally by my instructor. Aside from that, I had noticed before then that the bass on my tunings could sound better. I'm not quite sure if the high treble also has issues, but the bass has always stuck out to me more.

    I do have the Verituner manual, but there are a lot of various settings that I've not messed with. I usually just use the built in style recommended for the size of the piano and start tuning. If anyone here is experienced with this app and can give any pointers on how to correct the bass targets, I appreciate it! Perhaps I need to use the "stretch" setting?

    I want my pianos to sound as good as possible while I'm still learning aural tuning!



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    Summer Eells
    Friendsville TN
    (865) 337-2728
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  • 2.  RE: Verituner settings

    Posted 7 days ago
    There are various styles of tuning bass and I'm not sure that strict harmonic matching is the way to go. Whilst I've found a target that my CTS5 tuner can follow reliably I have played octaves and listened not for any one harmonic match in particular but the best meshing of all harmonics from both notes together. Unless you find a machine setting that does exactly what your ears would do, use your ears. 

    If you can set individual notes, here are the offsets I use for the top two octaves - universally. Don't worry about how wrong that seems but there are two factors that make standard octave 2:1 or 4:2 tuning irrelevant and these offsets give a starting point which works. These are the maximum stretch settings from the old version of the CTS5

    C#6 3.5

    D 4

    D# 4.5

    E 5

    F 5.5

    F# 6

    G 7

    G# 7.5

    A 8.5

    A# 9.5

    B 10.5

    C7 12

    C# 13.5

    D 15

    E 18

    F 20

    F# 22

    G 25

    G# 28

    A 32

    A# 36

    B 42

    C8 63 

    Now of course different instruments with different inharmonicity should be tuned accordingly. Of course. But there are two things against this. My ears tell me that high frequency notes are flatter, even if mathematically correct. So really to sound good, those top two octaves need to be sharp. The second thing is that using your tuner you'll be tuning individual strings - as I do and tend to . . . but with a proviso! You tune each of the three strings perfectly and then play the note and the machine then shows the note to be flatter than each of the original strings. So if your machine tuning is sharper than it ought to be harmonically, then the Weinrich flattening of the note will get the notes in tune. But then when the ear wants to hear the notes flat, the notes need to be sharper anyway. 

    It's a particular delight when tuning treble to hear coming into tune and the string singing, harmonically in tune with the octave below, but this doesn't happen on all instruments. It's so percussive that the treble doesn't sing at all, or junked up by duplex mistuning anyway, or strings presenting false notes. So there's no _right_ way of tuning there. https://youtu.be/bId_YvF_4Gk?t=112 is an example of how to shim up a note to compensate for the Weinrich effect. Up in the treble one sees how flat the note is, how fast the phase shapes are moving left, and then tunes all three strings the same rate sharp, to the right on the tuner, and then the note ends up on pitch.

    I don't always get it right but on https://www.youtube.com/watch?v=FfEQqfdbTA8 I felt happy about the treble.

    Best wishes

    David P


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    David Pinnegar, B.Sc., A.R.C.S.
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    +44 7868385643





  • 3.  RE: Verituner settings

    Registered Piano Technician
    Posted 7 days ago
    Summer

    As a way to get you to tune aurally, but still rely on your Verituner, here is what will help. First, tune the bass with the ETD. Then listen to a 10th, starting with the 3rd note above the break, and the 10th above that. (E3 - G#4) Listen for the beats. They should be very audible. Then go chromatically lower, and across the break. Continue down for an octave. As you go down, the beat rate will slow down, but the beat rate needs to be almost the same as the one above. When you get to C2, play Bb3, (an octave and minor 7th), and listen to those beats. The beat rate of C2 - Bb3 should be the same as Gb3 - Bb3. Again, they should be very audible. Then go down chromatically, with the beat rate slowing down as before. You can use that test all the way down to A0. If you want, when you get to F1, kick the upper note up an octave, F1 - Eb3.  

    Next thing you know, you'll be an aural tuner. 

    Good luck. 





  • 4.  RE: Verituner settings

    Registered Piano Technician
    Posted 7 days ago

    Wim,

    Progressive 3rds/10ths/6ths are fine, but they don't determine the size of the octaves, right? Isn't octave size the issue?



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    Scott Cole, RPT
    rvpianotuner.com
    Talent, OR
    (541-601-9033
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  • 5.  RE: Verituner settings

    Registered Piano Technician
    Posted 7 days ago
    Not necessarily. By using the checks, provided the temperament octave was set right, the checks will automatically stretch the octaves for the piano.
    Sent from my iPhone




  • 6.  RE: Verituner settings

    Registered Piano Technician
    Posted 7 days ago

    Hi summer,

    I suggest you try out the stretch settings devised by Kent Swafford, based on the P12 temperament. You'll find it in the Verituner forums if it isn't a pre-loaded option.



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    Patrick Draine RPT
    Billerica MA
    (978) 663-9690
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  • 7.  RE: Verituner settings

    Posted 6 days ago

    Hi Summer,

    The Verituner is a very flexible app when it comes to setting the tuning parameters. From what the develper hears back from techs is that most never "look under the hood" and use anything other than the default settings.

    Short answer to your question - "can it be used to match my instructor's tuning style?" - probably yes. Longer answer - the closer we look, the more complicated the puzzle becomes!

    Open your verituner app and on the home screen swipe left and tap "style", then the little "i" to the right of built-i, then the little "i" next to Average. What you should see are 6 setpoints the app uses along with the data gathered from the piano to calculate the stretch of the piano. For now, just look at A3-4 "4:2 0.32 100%". This represents using a 4:2 octave set 1/3 of a beat per second wide of pure - the 100% shows that it only considers that interval for A3 from A4. That reflects the current mainstream approach that the while the octave sound we hear between A3-4 is made up of the interacting beats of 2:1, 4:2, 6:3 and more intervals, by controlling the beat of the 4:2 (proved by aural checks) to a little wide, we reach the best compromise agreed on by most techs in the late 20th and early 21st century. 

    If that makes sense, then look at A2 where you can see that the control stretch is now based on a 6:3 interval. What happens in between? The app starts internally using both intervals of the surrounding setpoints of A2 and A3 - 4:2 and 6:3 and alters the percentages of weighting between them in the transition section. 

    If you go back and there are any files in the custom style section, you can then see what other techs have developed to find a different solution to finding the best tuning compromise. You can use up to 3 intervals for each setpoint and alter the location of the setpoints across the scale to create a custom solution.

    If your instructor can give specific instructions for how they check the bass tuning (more than "make the octaves sound good") using aural checks, then it is not difficult to translate that into the custom style editor to achieve close to the same results. It may be that your instructor is not using only 6:3 octaves in the bass, but a combination with another to set the stretch?

    Ron Koval



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    Ron Koval
    CHICAGO IL
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  • 8.  RE: Verituner settings

    Registered Piano Technician
    Posted 6 days ago

    Summer --

    I think that questioning Verituner over your instructor is not going to be the best path moving forward. If you plan on taking the RPT Tuning Exam, and I recommend you do, then you need to meet the requirements for that exam, which may be different than what your instructor is teaching you. I believe that all the major ETD's will meet those requirements, out of the box. The tuning exam, as I learned the hard way, is not about completing a tuning that pleases your ears so much as it is meeting the requirements of the test. 

    I further recommend that if you are interested in learning to tune aurally then you need to do that first. Don't get hooked on the ETD before you learn how to listen. The technology is so good that it's just too easy to let it take over. And because it's so good, and easy, so many of us wind up seldom going back to full aural tunings after that. That said, I used RCT as a check on my aural tunings when I was practicing for the exam. I would tune the whole piano, by ear, than use RCT, in exam mode, to check what I had done. 

    There are many aural tuning temperament sequences out there. They all will get you to pretty much the same place. Using the checks in those sequences, your aural tuning skills will then be needed to fine tune that sequence into the temperament you want to spread out over the rest of the piano. What you need to do is try several of them and find the one that you are most comfortable with, and the one that you can actually remember. Personally, I use the Swafford Every Which Way temperament sequence. It's the one I used to pass the tuning exam. Here is a link:

    https://www.scribd.com/doc/2424528/Every-Which-Way-Temperament-Swafford 

    Finally, learn how to tune aurally, using your ETD as a check, before you start messing with the ETD settings to try and make it match what you want do to. Once you pass the tuning exam, and once you can nail down a good aural tuning that meets all those requirements, you will have a more educated idea of how you may want to tweak the ETD settings. The settings are there to tweak but resist that temptation until you know what you are doing. 

    The PTG Store has a series called PACE that is very helpful in learning the basics of tuning and repair. They are written, specifically, to help you pass the exams as they are given and graded. The exams are really a necessary starting point from which you can then start to really learn. Go to PTG Conventions and Conferences and really learn. 



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    Geoff Sykes, RPT
    Los Angeles CA
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  • 9.  RE: Verituner settings

    Registered Piano Technician
    Posted 6 days ago

    Summer,

    Tuning aurally (a.k.a., analog...meaning to compare), REQUIRES that you 1) Know where to find the beats for any given interval, 2) What other intervals share the same beating partial(s), and 3) Listen to these beats and learn to compare their relative speeds in whatever context you are using them. It is exactly like learning to speak another language. 

    I've been doing this over 50 years and have yet to see someone who starts with a digital brain eventually discard that for their far superior analog brain. If you keep using the ETD, you will end up using the ETD, and do the absolute bare minimum analog...just enough to "pass" the exam...and then continue relying on the ETD.  Aural tuning will become non-existent for you...guaranteed. Mark my words. 

    Peter Grey Piano Doctor 



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    Peter Grey
    Stratham NH
    (603) 686-2395
    pianodoctor57@gmail.com
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  • 10.  RE: Verituner settings

    Posted 6 days ago
    Hello, Peter,

    Spot on.

    Kind regards,

    Horace




  • 11.  RE: Verituner settings

    Registered Piano Technician
    Posted 5 days ago

    Summer,

    You may find my comments harsh, however I find that one of new tuners' biggest stumbling blocks is that they don't fully understand the SOURCE of the beats they're supposed to listen to. I know this because that was my issue when I was learning. The books I used and my first instructor were not CLEAR and specific on identifying and isolating the relevant partials. KNOWING THIS (not guessing) is a game changer when learning aural tuning. 

    Honestly answer me: Can you quickly locate the beat source for a M3rd or M6th? (Don't get upset if your answer is "no". This is what education is all about). 

    Aside:  I flunked Algebra II in high school (though I did extremely well in Algebra I and other math) because my teacher (though very smart) was unable to simplify things and explain the WHY behind the math. Had I understood this I could figure out how to do it. Unfortunately that never came and I got discouraged and gave up. (Hopefully you get what I'm driving at here). 

    Peter Grey Piano Doctor 



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    Peter Grey
    Stratham NH
    (603) 686-2395
    pianodoctor57@gmail.com
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  • 12.  RE: Verituner settings

    Registered Piano Technician
    Posted 2 days ago

    Hi Summer,

    I can't help you with Vetituner, but as far as bass tuning goes, I have a few thoughts. Bass is the most harmonically complex portion on the piano. Additionally, below E2 (I believe), the upper harmonics generally have greater amplitude here than the fundamental, though our ear "interprets" the harmonic information and our brains reconstruct the fundamental. Psychoacoustics are the coolest thing! Practically speaking, tuning the bass well has a dramatic effect on how our ears reconstruct the fundamental. On small pianos, the difference between a mild stretch (6:3) and a larger stretch (8:4, 10:5) is so great, that I believe it's wise to stick to the 6:3 and call it a job. Finding a "middle ground" between any two of these numbers will make all the octaves sound out of tune at every coincident. More importantly, it's not giving our brains enough information to reconstruct low fundamental frequencies. On larger pianos, however, a good middle ground can be so close in many coincident partials, that splitting the difference can really enhance the sound of the bass. For example, if you are tuning C1, silently hold C1 and C2 with your left hand. While holding, play a fairly loud G3, C4 and E4, hold for a second or so, let go of these keys while still holding your silent bass octave and tune C1 to find the best blend of the harmonics. Check your ETD and see what octave placement you tuned aurally, which will give you an idea of what settings with the best for the particular piano and your ear.  You may find that the partials excited from G3 (6:3) and C4 (8:4) are very still but E4 (10:5) is beating faster. You may then choose 8:4 octave stretch since this gives a better resonance with the piano than a 10:5 would. Does this make sense?



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    Tim Foster RPT
    New Oxford PA
    (470) 231-6074
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