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Question : thanks in advance
Hi all Experts,
Please help me with the math problem I have and thank you very much in advance.
---------------
Calculate the Kbps (kilobits per second) of a MP3 file.
If you have a 5 MB file with a length of 3 minutes, you would use the formular below to find out the Kbps (kilobits per second) of a MP3 file.
1K = 1024 bytes
1M = 1024K
1 hour = 60 minutes
1 minute = 60 seconds
5MB = 5 * 1024 * 1024 bytes = 5242880 bytes
5242880 * 8 / 180 / 1000 = ~233 kbps
------------------
<html xmlns="
http://www.w3.org/1
999/xhtml
"
>
<head>
<TITLE></TITLE>
<script type="text/javascript">
var Hour = 0;
var Minute = 3;
var Second = 0;
function F_Calculate_MP3_Bitrate_Fo
rward ()
{
var i = parseFloat(document.getEle
mentById('
Calculate_
MP3_Bitrat
e_Forward'
).value);
var m = "";
if (!isNaN(i)) m = Math.ceil(((i * 1024 * 1024) * 8 / ((Hour * 3600) + (Minute * 60) + (Second * 1)) / 1000) / 1024 / 1024);
document.getElementById('C
alculate_M
P3_Bitrate
_Reversed'
).value = m;
}
function F_Calculate_MP3_Bitrate_Re
versed ()
{
var i = parseFloat(document.getEle
mentById('
Calculate_
MP3_Bitrat
e_Reversed
').value);
var m = "";
if (!isNaN(i)) m = Math.ceil(((i * 1024 * 1024) / 8 * ((Hour * 3600) + (Minute * 60) + (Second * 1)) * 1000) / 1024 / 1024);
document.getElementById('C
alculate_M
P3_Bitrate
_Forward')
.value = m;
}
function setbitrate_Hour(in_hour)
{
Hour = in_hour;
}
function setbitrate_Minute(in_minut
e)
{
Minute = in_minute;
}
function setbitrate_Second(in_secon
d)
{
Second = in_second;
}
</script>
</head>
<body>
<br />
<center>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" width="98%">
<tr>
<td width="40%">
<label><input id="Calculate_MP3_Bitrate_
Forward" onKeyUp="F_Calculate_MP3_B
itrate_For
ward()"/><
font color="#000000" face="Tahoma" style="font-size: 8pt"> File Size (MB)</font></label>
</td>
<td <td width="20%"><select name="Hour" id="Hour" onchange="setbitrate_Hour(
this.optio
ns[this.se
lectedInde
x].value);
">
<option value="0" selected="selected">0 hour</option>
<option value="1">1 hour</option>
<option value="2">2 hours</option>
</select>
</td>
<td <td width="20%"><select name="Minute" id="Minute" onchange="setbitrate_Minut
e(this.opt
ions[this.
selectedIn
dex].value
);">
<option value="1">1 minute</option>
<option value="2">2 minutes</option>
<option value="3" selected="selected">3 minutes</option>
<option value="4">4 minutes</option>
<option value="5">5 minutes</option>
<option value="6">6 minutes</option>
<option value="7">7 minutes</option>
<option value="8">8 minutes</option>
<option value="9">9 minutes</option>
<option value="10">10 minutes</option>
<option value="11">11 minutes</option>
</select>
</td>
<td <td width="20%"><select name="Second" id="Second" onchange="setbitrate_Secon
d(this.opt
ions[this.
selectedIn
dex].value
);">
<option value="0" selected="selected">0 Second</option>
<option value="1">1 Second</option>
<option value="2">2 Seconds</option>
<option value="3">3 Seconds</option>
<option value="4">4 Seconds</option>
<option value="5">5 Seconds</option>
<option value="6">6 Seconds</option>
<option value="7">7 Seconds</option>
<option value="8">8 Seconds</option>
<option value="9">9 Seconds</option>
<option value="10">10 Seconds</option>
<option value="11">11 Seconds</option>
</select>
</td>
<td width="30%">
<label><input id="Calculate_MP3_Bitrate_
Reversed" onKeyUp="F_Calculate_MP3_B
itrate_Rev
ersed()"/>
<font color="#000000" face="Tahoma" style="font-size: 8pt"> (Kbps)</font></
label>
</td>
</tr>
</table>
</center>
</body>
</html>
Answer : thanks in advance
Actually the mounting hole spacing is very well defined by the ATA specifications.
Here's the appropriate page from an IBM document that details the hole locations ...
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