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Semitones to Hz

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James Orr

Post subject: Semitones to Hz

Posted: Mon Mar 09, 2015 2:40 pm

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Joined: Wed Feb 15, 2006 7:37 am
Posts: 4820

I was looking through Build today to write some quick notes on what Trevor recommends in terms of the the back's relationship to the top. He recommends that the back be pitched a specified number of semitones higher than the top when tapped. Then I started wondering how to measure that.

This chart to the rescue: http://www.indiana.edu/~emusic/hertz.htm

Thought some of you might find it helpful.

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SteveSmith

Post subject: Re: Semitones to Hz

Posted: Mon Mar 09, 2015 2:49 pm

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Location: Southeast US
City: Lenoir City
State: TN
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Country: US
Focus: Repair

That is useful - thanks

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Steve Smith
"Music is what feelings sound like"

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Trevor Gore

Post subject: Re: Semitones to Hz

Posted: Mon Mar 09, 2015 6:00 pm

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Joined: Mon Sep 05, 2011 10:45 pm
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First name: Trevor
Last Name: Gore
City: Sydney
Country: Australia
Focus: Build
Status: Professional

For those with Design, Appendix III-1, p AIII-1, back of the book. It gives the note frequencies at 10 cent intervals from A1-50c (53.4Hz) to B8+50c (8133.7Hz) for A440Hz equal temperament.

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Trevor Gore, Luthier. Australian hand made acoustic guitars, classical guitars; custom guitar design and build; guitar design instruction.

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James Orr

Post subject: Re: Semitones to Hz

Posted: Mon Mar 09, 2015 6:48 pm

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Joined: Wed Feb 15, 2006 7:37 am
Posts: 4820

Trevor Gore wrote:

For those with Design, Appendix III-1, p AIII-1, back of the book. It gives the note frequencies at 10 cent intervals from A1-50c (53.4Hz) to B8+50c (8133.7Hz) for A440Hz equal temperament.

Thanks, Trevor. I didn't realize that.

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