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dror  
#1 Posted : Thursday, March 4, 2021 10:55:12 PM(UTC)
dror

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Israel

hey all i was trying to calculate the meterF1 value to dBFS
but with no luck...
i understand the the value is between 0 and 1

so how can i get the current dBFD ?
i was trying to multiple by the fader volume and substract by 0.25... no good
can anyone help?
pm  
#2 Posted : Thursday, March 4, 2021 11:04:33 PM(UTC)
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dror  
#3 Posted : Thursday, March 4, 2021 11:12:37 PM(UTC)
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thank you for the replay...
the link is broken
dror  
#4 Posted : Thursday, March 4, 2021 11:15:46 PM(UTC)
dror

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sorry my bad...
i have seen this this article...
didn't managed to understand the formula... do i need to calc the volume and the amplitude?
doggy  
#5 Posted : Friday, March 5, 2021 12:57:23 AM(UTC)
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Originally Posted by: dror Go to Quoted Post
sorry my bad...
i have seen this this article...
didn't managed to understand the formula... do i need to calc the volume and the amplitude?


https://www.computerhope...r%20exponential%20power.
RichDanby  
#6 Posted : Friday, March 5, 2021 5:19:32 AM(UTC)
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I don't think that link answers the question, and I like a maths puzzle, so I tried to work it out myself.

Using a tone generator I got these values.
Level | MeterF1
0 | 1
-1 | 0.8911
-2 | 0.798
-3 | 0.7077
-4 | 0.63
-5 | 0.5619
-10 | 0.31617
-20 | 0.9988
-30 | 0.0316
-40 | 0.00998
-60 | 0.0009
-80 | 0.00009


Cutting it short.. I get dbFS = 20 * log(MeterF1)
thanks 1 user thanked RichDanby for this useful post.
stigaard on 3/5/2021(UTC)
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