Converting Values

rl · 23 Sept 2005

120 BPM is ( div 60 ) 2 beats per second is ( div 4 ) 0.5 s per measure (provided that 4 measuers makes one beat) is 500 ms per measure.

Tom7777 · 23 Sept 2005

Thanks rl, i was guessing it might be this but i was not sure 🙂

Sk · 24 Sept 2005

Maybe I just use different terms than you do. But assuming a 4/4 signature, then four beats make up a measure (or bar). So 120BPM is 2 beats per second, which means 0.5 measures per second.

oddson · 24 Sept 2005

(Beats/Minute)/(seconds/minute)=beats/second

120/60=2 beats/second

inverse for seconds/beat = .5 (500 ms/beat)

measures don't come into it.

rl · 24 Sept 2005

i do better math than music 😊

skOre · 25 Sept 2005

Will include modules for this in the next pack, please check over them!

Tom7777 · 25 Sept 2005

please check over them!

Just took a quick look, the converters seem to work fine, thanks Sk0re 🙂

Tom7777 · 25 Sept 2005

Actually im not sure about the BPS to BPMS, shouldn't that be a multiply value. I think 120 BPM should be equal to 500 MS?

oddson · 25 Sept 2005

Tom7777 wrote: Actually im not sure about the BPS to BPMS, shouldn't that be a multiply value. I think 120 BPM should be equal to 500 MS?

Right, MS per Beat is 500 But BPMS is Beats per Millisecond and therefore is the (1/x) inverse or 0.002.

Beats per MS is a pretty odd concept I think. MS/Beat is something you're more likely to want to use.

The modules all seem OK on my quick view. But getting your head in the conversion space is still required to use them.

My 10th grade physics teacher taught me one thing I still remember.

When you're multiplying or dividing numbers with units; you multiply and divide the units too.

So if from Beats/Minute you want Beat/Second you'll have to multiply by minutes/second (or divide by seconds/minute) to get the units to cancel out correctly.

From Beat/Second to Beats/MS you need to multiply by second/MS (Edit - D'oh made the exact mistake i was explaining how to avoid and didn't bother to check 😊 )

Whenever I get lost in a conversion I scratch it out on paper with the units there and make sure they work. If they don't. I've made a mistake.

skOre · 25 Sept 2005

Well off course! Stupid me! Corrected and reuploaded!

(Hope its all right now...)

Tom7777 · 25 Sept 2005

Thanks Sk0re 🙂

Beats per MS is a pretty odd concept I think. MS/Beat is something you're more likely to want to use.

Well i was using a counter for something which uses MS as its input so i was thinking on converting its speed to a BPM rate so i could sync it with 120 bpm beats ect which is what made me ask the question as i was not sure if the 4 measures counted as part of the calculation. 🙂

oddson · 25 Sept 2005

Hey Dan... Sorry if I've come off like a windbag here. When I looked skOre's modules seemed right to me so I was trying to answer the only question I thought you could be asking. I think I down loaded his corrected ones while he was writing his post.

skOre · 25 Sept 2005

You guys do give me a headache at this royal time. Recorrected the corrected modules. Think everything is ok NOW 😉

skOre · 25 Sept 2005

oddson wrote: I think I down loaded his corrected ones while he was righting his post.

I have miscorrected them when tom posted (got on the same wrong train of thought as him). Then posted (which unfortunately came out after your post correcting him) and now reposted the now, I hope, truly correct version.

Tom7777 · 25 Sept 2005

-

oddson · 25 Sept 2005

😮 😀 😀 😀 I think it just goes to show how easy it is to mess up the little things.

BTW - I heard the problem with the Hubble telescope stemmed from failing to convert a value between metric and U.S. (Imperial?, do they call it that?).