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39 lines
634 B
Go
39 lines
634 B
Go
3 years ago
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package rms
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import (
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"encoding/binary"
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"math"
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)
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func RMS(voicedata []byte) float64 {
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var rms, sum, average float64
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rms = 0.0
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sum = 0.0
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length := len(voicedata)
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if length <= 0 {
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return 0.0
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}
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length /= 2
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for iter := 0; iter < length; iter++ {
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uval := binary.LittleEndian.Uint16(voicedata[iter*2 : iter*2+2])
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sval := int16(uval)
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pval := math.Pow(float64(sval), 2)
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sum += pval
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}
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average = sum / float64(length)
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/*
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for iter := 0; iter < length; iter++ {
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summs += math.Pow(float64(voicedata[iter])-average, float64(2))
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}
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avgms = summs / float64(length)
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*/
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rms = math.Sqrt(average)
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return rms
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}
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