I'm looking for tables of ratios between notes that would cover at least two octaves. I found a few that only cover 1 octave.
Anyone knows where I could find that?
Table of note ratios
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- KVRAF
- 4090 posts since 31 Oct, 2002 from Montreal, Canada
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- KVRAF
- 6519 posts since 13 Mar, 2002 from UK
Not quite two octaves but...
http://users.bigpond.net.au/d.keenan/Mu ... Naming.htm
http://users.bigpond.net.au/d.keenan/Mu ... Naming.htm
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- KVRAF
- 1907 posts since 29 Oct, 2003
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Mental Audio Deviations Mental Audio Deviations https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=43630
- KVRist
- 180 posts since 7 Oct, 2004 from NL
nuffink wrote:Not quite two octaves but...
http://users.bigpond.net.au/d.keenan/Mu ... Naming.htm
I have absolutely no idea what that's about. Interesting read thoughJaap
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- KVRAF
- Topic Starter
- 4090 posts since 31 Oct, 2002 from Montreal, Canada
Thanks, this is an interesting document but not quite what I'm looking for.
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- KVRAF
- 6519 posts since 13 Mar, 2002 from UK
That's easy. For the difficult stuff...Mental Audio Deviations wrote:
http://www.harmonics.com/lucy/index.html
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- KVRAF
- 6937 posts since 4 Jun, 2004 from Utrecht, Holland
Knowing the theory and using a calculator (or easier: MS Excel) you can make the table yourself.
Theory: the ratio of an octave is 1:2 or 200%. The A above middle-C is 440Hz so the A above that one is 880Hz and the one below is 220Hz. An octave is divided in 12 equal parts. There is a factor inbetween each note that to the power of 12 is exactly 2. This factor is 2 ^ (1/12) or approx. 1.059463. By repeatedly multiplying (or dividing) with this factor you can get all ratios you want.
Note: this is a mathematical approximation. Using micro-tuning you can get more natural sounding intervals (see the other posts for more articles)
Theory: the ratio of an octave is 1:2 or 200%. The A above middle-C is 440Hz so the A above that one is 880Hz and the one below is 220Hz. An octave is divided in 12 equal parts. There is a factor inbetween each note that to the power of 12 is exactly 2. This factor is 2 ^ (1/12) or approx. 1.059463. By repeatedly multiplying (or dividing) with this factor you can get all ratios you want.
Note: this is a mathematical approximation. Using micro-tuning you can get more natural sounding intervals (see the other posts for more articles)
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Mental Audio Deviations Mental Audio Deviations https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=43630
- KVRist
- 180 posts since 7 Oct, 2004 from NL
Not very modest, are they?Setting tuning and harmonic standards for the next thousand years (& beyond....)
Jaap
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- KVRAF
- 6519 posts since 13 Mar, 2002 from UK
nor very likely.
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- KVRAF
- 6937 posts since 4 Jun, 2004 from Utrecht, Holland
Come to think of it, its so simple!C00kie wrote:Knowing the theory and using a calculator (or easier: MS Excel) you can make the table yourself.
Theory: the ratio of an octave is 1:2 or 200%.
You have the table with factors for one octave, right? Just multiply/divide all values by 2 to get another octave up/down.
But... are you by any chance converting lots of samples and resampling them to one pitch? You may have good reasons but I would not do that. I leave that job to the sampler itself so it is resampled only once (by the sampler) and the quality is preserved.
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- KVRAF
- Topic Starter
- 4090 posts since 31 Oct, 2002 from Montreal, Canada
That's what I did but I wanted a table anyway so if someone's has one I'm still interested.C00kie wrote: Come to think of it, its so simple!
You have the table with factors for one octave, right? Just multiply/divide all values by 2 to get another octave up/down.
No I'm not, it was to calculate tempos.C00kie wrote: But... are you by any chance converting lots of samples and resampling them to one pitch? You may have good reasons but I would not do that. I leave that job to the sampler itself so it is resampled only once (by the sampler) and the quality is preserved.