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JohnVo
JohnVo
Inspiring
May 16, 2017
Answered

calculate entire RMS of an audiofile ,are audio statistics accurate?

  • May 16, 2017
  • 1 reply
  • 3320 views

hi

about are the audtio statistics of an entire audio file accurate ?

reading a forum about it , i have read

it's impractical to calculate the true RMS of the entire file, so most algorithms do some time-windowing and take an average-of-RMS values (or maybe an RMS-of-RMS values if that makes sense mathematically). So... two different applications may report two slightly different RMS values.

&

and, the average may  also be an average-of-averages over the length of the file.

is it true?

thanks

This topic has been closed for replies.
Correct answer SteveG_AudioMasters_

Giovannivolontè  wrote

 

is it true?

Yes.

Now what?

1 reply

SteveG_AudioMasters_
Community Expert
SteveG_AudioMasters_Community ExpertCorrect answer
Community Expert
May 16, 2017

Giovannivolontè  wrote

 

is it true?

Yes.

Now what?

JohnVo
JohnVoAuthor
Inspiring
May 17, 2017

it's impractical to calculate the true RMS of the entire file

&

Yes.

Now what?

hi

so audtio statistics is almost unless

i use to find out the peak amplitude & the minimum rsm ampliture

these value are misleading aren't they?

for example i working on this audio , i watch the value with the red arrows

sIJ6xi3.png

thanks

SteveG_AudioMasters_
Community Expert
SteveG_AudioMasters_Community Expert
Community Expert
May 17, 2017

hi

it works! i set tolerance to zero !

the default is 1% but set to 0 work perfectly!

wondering about how should i set the declicker

thanks StegeG!!!


Giovannivolontè  wrote

hi

it works! i set tolerance to zero !

the default is 1% but set to 0 work perfectly!

Why are you so surprised? All default settings in Audition are only starting points - you have to adapt them to suit your particular circumstances.


wondering about how should i set the declicker

Which declicker? There are three, although two of them are very similar. The general principle though is to use your ears. The click/pop eliminator is the most effective, but you have to set it up with care. Let it loop around a section after you've determined the threshold levels, and only advance the controls as far as you need to make them inaudible.

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