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SpeakFreely
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lpc10
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energy.c
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C/C++ Source or Header
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2000-05-18
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494b
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32 lines
/**********************************************************************
*
* ENERGY Version 50
*
**********************************************************************
*
* Compute RMS energy
*
* Inputs:
* LEN - Length of speech buffer
* SPEECH - Speech buffer
* Output:
* RMS - Root Mean Square energy
*/
#include <math.h>
energy( len, speech, rms )
int len;
float speech[], *rms;
{
int i;
*rms = 0;
for(i=1;i<=len;i++)
*rms += speech[i]*speech[i];
*rms = sqrt( *rms / len );
}