Second-harmonic generation: Difference between revisions

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en>BG19bot
m WP:CHECKWIKI error fix for #61. Punctuation goes before References. Do general fixes if a problem exists. - using AWB (9916)
en>Magioladitis
m Commercial uses: WP:CHECKWIKI error fixes using AWB (10479)
 
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{{Multiple issues||wikify = March 2013|unreferenced = October 2006}}
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The '''real time factor (RTF)''' is a common metric for measuring the speed of an automatic [[speech recognition]] system. It can also be used in other contexts where an audio or [[video signal]] is processed (usually automatically) at nearly constant rate (e.g. reading music from a [[Compact disc|CD]]).
 
==Definition==
If it takes time <math> {P} </math> to process an input of duration <math> {I} </math>, the real time factor is defined as
:<math> RTF = \frac{P}{I} </math>. 
If, for example, it takes 8 hours of computation time to process a recording of duration 2 hours, the real time factor is 4. When the real time factor is 1 or less than 1, the processing is done ''in real time''. It is a hardware-dependent value.
 
The accuracy of a speech recognition system, on the other hand, is measured with the [[word error rate]].
 
{{DEFAULTSORT:Real Time Factor}}
[[Category:Speech recognition]]

Latest revision as of 07:47, 13 October 2014

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