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Calculate file size from bitrate and playtime
WaldoMonster
post Feb 21 2006, 19:39
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Is this calculation right?
I hope I didn't fucked up with switching bits and bytes wink.gif

Thanks for the help,

Willem


CODE
Bitrate 64 kbps
Playtime 5 min

64 kbps = 64000 bps

5 min = 5 x 60 = 300 sec

            64000
64000 bps = ----- bytes/sec
              8

64000 * 300                    2400000
----------- = 2400000 bytes = ----------- = 2.29 MB
     8                        1024 * 1024


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WaldoMonster
post Feb 21 2006, 21:29
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Thanks for that tool smile.gif
This calculation is right for Bytes.

Mabe the tool is wrong regarding Bytes to KBytes, MBytes, etc...
It uses a factor 1000 I thought for storage they used a factor 1024,
exept for Hard Disk's because it looks better that way tongue.gif

<update>
Hello Alex B,

I think we typed it the same time wink.gif
</update>

This post has been edited by WaldoMonster: Feb 21 2006, 21:31


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Alex B
post Feb 21 2006, 21:41
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QUOTE (WaldoMonster @ Feb 21 2006, 10:29 PM)
Thanks for that tool  smile.gif
This calculation is right for Bytes.

Mabe the tool is wrong regarding Bytes to KBytes, MBytes, etc...
It uses a factor 1000 I thought for storage they used a factor 1024,
exept for Hard Disk's because it looks better that way tongue.gif

<update>
Hello Alex B,

I think we typed it the same time  wink.gif
</update>
*

Yeah, and that tool indeed shows incorrect KB, MB and GB values.

Also, the real 128 kbps 2min 30s files I have are almost exactly 2.3 MB. (I don't have 64 kbps files.)


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