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Subject:wah-wah rate to project tempo
Posted by: L25
Date:4/3/2003 9:06:27 AM
I want to match the wah-wah plug-in rate to my project tempo. I can ear-ball it and get close enough, but is there some math I can do to type in the rate to 3 decimals? I am a bit lame and need to convert Hz to BPM? L |
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Subject:RE: wah-wah rate to project tempo
Reply by: ihisert
Date:4/3/2003 10:59:56 AM
Not too sure if this will work for you, but you should check out the audio downloads at AnalogX http://www.analogx.com/contents/download/audio.htm It has a bunch of pretty good DirextX plugins and stand-alone apps. Under "Misc Music Utilities," there's a Delay Calculator, which will match milliseconds with tempo - perhaps this can be used with a wah-wah rate, too. I'm not as familiar with the wah-wah effect (actually, I just started using it a lot last week, but haven't tried matching tempo's yet), so I'm not too sure if the rate is done in milliseconds... Ian |
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Subject:RE: wah-wah rate to project tempo
Reply by: Iacobus
Date:4/3/2003 10:02:54 PM
I think it depends on the frequency of the signal, not the actual duration, that determines how the wah activates? (Though I'm no audio engineer on the issue, so...) Iacobus |
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Subject:RE: wah-wah rate to project tempo
Reply by: Gordian
Date:4/6/2003 6:58:30 AM
Look for a thing called Delay time calculator on the Steinberg site. It's free and I guess you could use it to calculate the rate of the wah. Gordian |
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Subject:RE: wah-wah rate to project tempo
Reply by: mr_williams
Date:4/7/2003 5:18:19 AM
just use the ultrafunk wah, it supports bpm synchronize www.ultrafunk.com |
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Subject:RE: wah-wah rate to project tempo
Reply by: dkistner
Date:4/8/2003 2:51:33 PM
L25, I hear you on the math deal. I'm so math-phobic, I have the worst time! I've been trying to sync brainwave entrainments to tempo. Finally, one night I dreamed (one of those working-in-my-sleep dreams) that I could divide the tempo (bpm) by the brainwave Hz rate (cycles per second, which is perceived as beats at the entrainment rate) and anything that was evenly divisible would work. (I later realized I had to get it all converted to seconds first!) So I made up a spreadsheet to calculate a universe of tempos and color-highlighted all the ones that gave me a result of X.00. Of course, I wind up with some oddball tempos (like 74.36) in the "workables," but since my scoring program accepts fractional tempos, that's no problem for me. If some math whiz here could confirm that this method will work, that would make me so happy. |
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Subject:RE: wah-wah rate to project tempo
Reply by: L25
Date:4/8/2003 6:52:42 PM
I just downloaded the ultrafunk Wah demo, I am going play around with that. Thanks for the tips. L25 |
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Subject:RE: wah-wah rate to project tempo
Reply by: braulio
Date:4/9/2003 2:22:40 PM
It is not terribly hard to figure. Suppose you have a song at 120BPM. Divide by 60 to get 2 Beats per second. At 2 BPS, your wah rate is 2Hz. Math is helpful in music, especially with samples. If you've got 2BPS and you want to figure samples per beat, divide your sample rate by your BPS. For example, 44100 divided by 2 = 22050 samples per beat. I like to mess with numbers in spreadsheets, as it makes for fast calculations of a large list of numbers without the need for my brain! |
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Subject:RE: wah-wah rate to project tempo
Reply by: dkistner
Date:4/11/2003 5:27:55 PM
Braulio, I like to mess with spreadsheets, too. It's amazing how many hours I can spend perfectly calculating out all those functions I don't understand (and don't work for what I'm actually trying to do)! But your description is helpful. I've been going at it backwards, multiplying cps by 60, doing the math, then dividing it by 60 again if I need to. I guess it doesn't really matter as long as the basic formula is right. But you wouldn't believe how stupid about math I am! ;) I'm still not sure if I need to be dividing the tempo into the total cycles per second (say, 10 Hz x 60 x 270 seconds for the length of a piece...?) or vice versa. I wound up just dividing the cps x 60 by 2, 3, 4, 6, etc., figuring what I got would be the tempo I needed to "fit" evenly into so many cpms; and when I scored it out, the time looked right. I probably have it ass-backwards, though...knowing me.... And my cousin scored 1598 on his SAT and had his way paid at several Ivy league universities through his doctorate in math, so I guess I'm some throwback or something. (But know what he said? "I don't know how to do arithmetic." Of course, that also confused the heck out of me!) |