Vibrato

About Steel Guitarists and their Music

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Andy Volk
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Joined: 4 Aug 1998 11:00 pm
Location: Boston, MA
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Post by Andy Volk »

Rick, I love the way you apply scientific analysis to illuminate some of the more mysterious aspects of art; very cool. Sometimes it's over my head but this one I undrstand.

Can you tell me why I find Ella Fizgerald's vibrato sublime while Joan Baez and Buffy Saint Marie make me react like I'm hearing chalk on a blackboard? Is it an irregular wave pattern? Speed? Amplitude? Platiude? What?
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Rick Aiello
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Location: Berryville, VA USA
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Post by Rick Aiello »

Andy, when I first got the spectrum analyzer (plug-in for Sound Forge) ... I went nuts and made small .wav files of all my favorites and then stored the sonograms (I since lost all in a hard drive "crash").

In particular, I remember comparing Sarah Vaughn to Ella Fitzgerald ... Vaughn's had a much longer onset time (note held longer before applying the vibrato). Once she started though ... the extent was much greater and rate was a tad slower.

As Steve pointed out, the lower the frequency ... the wider/slower the vibrato. Comparing folks like Mel Torme to Judy Garland was really enlightening.

A whole number of waves/cycle and an even-ness between the maxima (sharp) and minima (flat) combined with variations of onset and rate were the hallmark of the greats.

Sampling poor examples (my own playing) showed irregular wave functions (ie. not smooth sine curves), deviations from the "dead center" of the note being embellished ...

And worst of all ... changes in rate that were inconsistant. Mine would ... start fast, then slow down, then speed up ... Yuk

The exciting players like Andy Iona will vary the rates .. but always in a "build-up" way. A "pure" note followed by an increase in both rate and extent .... very hard to tell in "Real-Time" (easy to see in the 3K Hz range of a sonogram) ... but flat out thrilling to hear. I love that era !!!

Here's one from that tune on my site ... its a 6 Hz ; 50 cent vibrato ...

Image

Hey ... I'm workin' on it Image


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Jesse Pearson
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Post by Jesse Pearson »

Man, that was a cool music lesson. Image
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