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  #1  
Old 02-05-2004, 01:07 AM
Tez Tez is offline
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Ok Now that I have your attention and your probably irritated By the Title.
Im not going to criticise anyones style or tecnique( wish there was a spell checker in this program)
I Just want to discuss how tone can be manipulated.
In order for a string to produce sound it must vibrate , so the energy of the finger is transfered to the string how much energy that is put into the string will effect the Resultant Tone, A light pluck will mostly excite the Fundemental Harmonic (or first partial)and possibily the second Harmonic ie the octave . this will produce a clean sound very suited to blending with other sounds ie piano chords, guitar chords.
this is because the string is vibrating from fret to bridge or stopped finger to bridge. the second harmonic will be excited if there is enough energy to make the string divide into a fig 8 pattern ( This can be heavily influenced by the Guage, Brand and type of string ).and where on the neck you are playing. as you increase the energy transfer to the string ie pluck or pick harder the harmonics produced by the string increase,which have an immediate effect on the Tone ( and Volume) this will increase satifactorly untill INHARMONICTY starts to creep in ( what the F is that you ask) whilst a string can vibrate into a harmonic lenght governed by the harmonic nodes that the string can create ( Dont forget "String Variables Factor" ,guage ,Brand etc) and dont try to think that this is totaly undisirable coz that will make the string take on a new characteristic you might want, ie Growl . ( hell this is a big subject I think I need to break it down . because the way you play the string and which piont you pluck all have influence on the outcome or "Resultant Tone" as I call it I will close this post and r epost later on these factors that influence what you hear come out of your Bass Regards tez
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  #2  
Old 02-05-2004, 01:09 AM
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That read about as clearly as the liner notes to Cecil Taylor's Unit Structures.
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  #3  
Old 02-05-2004, 01:13 AM
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sorry should I repost it broken down a bit more ( unfortunatly tone generation is Complex) Tez
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  #4  
Old 02-05-2004, 01:31 AM
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So, basically you're saying that plucking harder gives you a cooler sound?



No, I disagree. Cf. Gary Willis
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  #5  
Old 02-05-2004, 01:44 AM
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No I am not say that! im just discussing the principles that change Tone. it up to you to dicide what Tone you Like.
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  #6  
Old 02-05-2004, 04:18 AM
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Fundamental and first partial are an octave apart, not the same note.

"inharmonicity" is not a word.

all the harmonics of a string ring anytime the string vibrates. (Meaning the string is vibrating along its fundamental, and the entire overtone series simultaneously - that's what give you the timbre)

nice idea, your research is suspect.
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  #7  
Old 02-05-2004, 07:39 AM
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I get what it is you're saying.... You just went aboot it in an odd way. Let me try to explain something else. I'm not quite sure what you're getting at with the light pluck & fundemental harmonics and what not.... But I know that where you pluck has A LOT to do with tone.

Try this Bass Players........

Pluck/Pick (Whatever) an open A wherever you normally pluck at.

Ok.... now pluck the same A from the 12th fret.

Do you hear the difference?

Try playing harmonics where you normally pluck.

Now play them way down by the bridge.

Sound better or perhaps "cleaner"?

Tez, please explain what you're getting at.... I'm interested.

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  #8  
Old 02-05-2004, 11:42 AM
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Originally Posted by Pacman

all the harmonics of a string ring anytime the string vibrates. (Meaning the string is vibrating along its fundamental, and the entire overtone series simultaneously - that's what give you the timbre)
All the harmonics ring but depending on the way you pluck a string (Hard/soft/closer to the bridge/closer to the neck) you alter the volume of each partial (harmonic), thus altering the timbre.
  #9  
Old 02-05-2004, 11:43 AM
Tez Tez is offline
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Refering to the fundimental vibration as the firt pastial occurs quite often and can be confusing (Ref Tuning Musical Instruments) when I find the book again I will post the author and publisher, to keep it simple and concistant I will refer to the full lenght vibration as the fundimental and the fist octave as the first partial Inharmonicity is a word it is used in the research of Tone generation with regards to the string vibration , by most Piano designers or manufacturers , and it it a measurable entity( do a search on PTTA web site)or go here http://www.acoustics.hut.fi/~hjarvel...s/icmc99.pdfor( you may have to copy and paste this link)if not working try http://www.google.com.au/search?q=in...-8&hl=en&meta= or do a search using the word Inharmonicity.The inharmonicity Factor can be the greatest in the Bass Stings which do somewhat resemble wound electric Bass strings and no, all the partials do not vibrate unless there has been enough energy imparted to the string to set them in motion thats why a soft note has little attack ( less overtones) so in summary
please do your own research on Inharmonicity before you jump on me Kind Regards Tez
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Last edited by Tez : 02-05-2004 at 01:23 PM.
  #10  
Old 02-05-2004, 12:39 PM
Tez Tez is offline
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Futher to your reference that the first partial is the octave see File attachments ( Hope they uploaded ok the source of this isthe Piano - its Acoustics by W V Mc Ferrin if not I can e mail them
Hope this clarifiys things for you I dont mean to be offencive but dont jump on me for having suspect research Regards Tez(Terry)
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  #11  
Old 02-05-2004, 12:45 PM
Tez Tez is offline
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How do I get the attachments to show there is 2 if you scan the thumnail bar the second one will open but not the first (Help!) Regards Tez
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  #12  
Old 02-05-2004, 01:15 PM
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Zilla04 Iwill try to continue what I was originaly Talking about which is basicaly Tone generation and getting the most out of your bass but at the moment my credibilty is under review and once that is sorted out I will continue Thanks for your Interest Terry
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  #13  
Old 02-05-2004, 01:34 PM
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There must be some of that hard-hitting weed making it down to Aussieland
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  #14  
Old 02-06-2004, 08:06 AM
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I understand what you are saying Tez, believe it or not!

To put it simply...in order for a string to develop it's full sound...the fundamental, harmonics, etc. the string must be plucked to a certain degree, which sets in motion all of the sound waves associated with that string.

If plucked lightly, the string does not vibrate enough to put those sounds in motion. If plucked harder, not only is the note louder, but the string vibrates more fully and the total sound is put in motion.

Try it on a piano once. Touch a key so that it is just enough to develop a quiet note. Not only is the volume affected but the piano string will not vibrate sufficiently to develop the fundamental as well as the associated harmonics, etc.

But hit a piano key with authority and you can hear the difference (beyond volume). Of course, how lightly or heavily you pluck a bass string has more of an effect because the heavier the string the more this effect comes into play.
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  #15  
Old 02-06-2004, 08:28 AM
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Originally Posted by Peter McFerrin
That read about as clearly as the liner notes to Cecil Taylor's Unit Structures.

That's awesome, Pete!
Keep up the ggod work...
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  #16  
Old 02-06-2004, 09:40 AM
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  #17  
Old 02-06-2004, 10:06 AM
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First of all, as Pacman said, any note produced will vibrate the fundamental and ALL harmonic overtones, of which there are an infinite number. Tone is dependent on timbre, which is a function of these overtones. If you don't believe me, plug your bass into a scope, Fourier analyze the waveform and see what comes out.

Since the fundamental is of a lower frequency than its harmonic overtones, it will thus require MORE energy to produce it, not less!

By "fig 8" you are referring to harmonic nodes. These are always present in a standing wave system; how much energy is in the system is irrelevant as long as it is not zero.

Different string brands produce different tones because of the variation in mass, density and tension. I'm not exactly sure how this affects tone, but it has nothing to do with how many harmonic nodes are on the string and where they are produced (this is a function of string length).

I do really like this topic... but your physics is a bit off...
  #18  
Old 02-06-2004, 10:58 AM
Tez Tez is offline
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They are not my Phycics they come from w v McFerrin or at least a Book written By Him, refering to harmonics produced by a vibrating srting .
Sundoque ! futher to what you replied to find a sound you want you have to now look at where on the string lengh you play it and just how you pluck, even to change the angle of the finger as you play the note will effect the Tone, It can take a long time to find the right string to use on a particular Bass that eventually cracks the sound you are looking for .I find if you favour Flats or Tape Wound you will spend a lot more money because they are so inconsistant in thier manufacture ( whith the exception of Pyrimid) that many new sets you will try can be unbalanced tonaly .
Since Tone prodution is so complex no one can tell you what strings will give the right sound for you on your Bass because they way in which you play hass a major influence over the final sound , you have to do the hard yards for yourself, I been experimenting in this area for 15 years and im getting closer the sound I seek. an Interesting experiment is to give someone your Bass to play On your sytem with your settings and have a lisen you will be amazed at the difference ( Good or Bad ) that a different Tecnique will make to the sound , provided the bass tone is not wound up making the sound Muddy then every one will sound muddy Tez
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  #19  
Old 02-06-2004, 12:21 PM
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I agree.

I have been altering my fingering style and my equipment (strings, etc.) for over twenty years in search of MY perfect sound.

After all of this time, it is a combination of my tapewounds, playing almost over the neck (most times, directly over it) and alternating between a light and heavy touch in my playing...which is not to be confused with just trying to alter my volume. In addition, how I pluck the strings is just as important as how hard or soft I pluck them.

All other things being equal, tone really is in your hands. I can get almost (but not quite) the same tone I've found...on nearly all basses and all amps/cabs. I've seemed to have found my groove. Obviously I don't to have to experiment with it to find it on my own setup...but on other gear I can eventually find the right way to get MY sound just by the way I play.

Granted, different amps and cabs give distinctly different sounds...but the ideal is to find the right equipment to work with in the first place, to make it easier to find that sound. Then there is the issue of volume and the rooms we play in. That is more a function of the equipment than in how you play.

More than any other thing, how one plays affects the sound more than any other thing, including ALL equipment. I like your point about putting two different players on the same gear with the same settings, will still result in two completely different sounds.
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  #20  
Old 02-07-2004, 12:40 PM
Tez Tez is offline
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To Pacman still think Inharmonicity is not a word??
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