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Author Topic: Strange BPM calculations  (Read 1894 times)

Nethog

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Strange BPM calculations
« on: September 19, 2003, 08:06:02 pm »
I've noticed something a bit strange with the BPM.  After analyzing audio on quite a few imported tracks I noticed that the BPM was somewhere between 70-130.

I then ripped my first CD using MC and noticed that the BPM for the freshly ripped tracks were between 500-1200!

After forcing MC to re-analyze the tracks the BPM dropped into the same range as the imported tracks(70-130).

Bug?

I'm using the 9.1.256 beta.

After further review it appears that the BPM after forcing MC to re-analyze the tracks the BPM is coming out at 1/10th what it was showing after ripping.
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Matt

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Re: Strange BPM calculations
« Reply #1 on: September 20, 2003, 09:56:49 am »
Must be a bug.  If it doesn't get fixed in one of the next couple of builds, remind us again in the bug thread.

Thanks!
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Matt Ashland, JRiver Media Center

friendly

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Re: Strange BPM calculations
« Reply #2 on: September 20, 2003, 10:06:31 am »
I've noticed that the BPM can be very inaccurate.  Fast songs get very low counts and vice versa.  

Good vibes,
Eric
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shAf

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Re: Strange BPM calculations
« Reply #3 on: September 23, 2003, 08:45:49 am »
Can I ask if BPS isn't simply calculated as:

BPS == ((filesize)x8) / track-time

i.e., == (bits) / (seconds)
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cheerios from the Avalon Peninsula, Newfoundland

Matt

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Re: Strange BPM calculations
« Reply #4 on: September 23, 2003, 09:09:19 am »
It's beats per minute -- like how fast you'd tap your foot.

It's not an exact science, but comes pretty close for a lot of music.
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Matt Ashland, JRiver Media Center

KingSparta

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Re: Strange BPM calculations
« Reply #5 on: September 23, 2003, 11:03:27 am »
Quote
I've noticed that the BPM can be very inaccurate.  Fast songs get very low counts and vice versa.  

Good vibes,
Eric


Matt has a wooden leg (Old shark\boating injury) so it is a bit slower than it should be.
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