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 Post subject: levels and 0 dBr
PostPosted: Mon Dec 19, 2016 3:39 pm 

Joined: Fri May 29, 2015 3:17 pm
Posts: 52
Before asking question regarding 0 dBr, I need to know more about the levels display used under FM.

Image

What does these three different colors means?

Edit: If the image doesn't work, here is the link https://minfil.org/xwycoUkt352SX8JlpPE3 ... levels.gif


Last edited by gjbbgu on Mon Dec 19, 2016 8:02 pm, edited 2 times in total.

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 Post subject: Re: levels and 0 dBr
PostPosted: Mon Dec 19, 2016 6:39 pm 
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Joined: Mon Mar 17, 2008 1:40 am
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http://help.stereotool.com/7.83/fm_transmitter.shtml
Search for BS412


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 Post subject: Re: levels and 0 dBr
PostPosted: Mon Dec 19, 2016 8:04 pm 

Joined: Fri May 29, 2015 3:17 pm
Posts: 52
Quote:
I can't find the information about the colors there.


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 Post subject: Re: levels and 0 dBr
PostPosted: Tue Dec 20, 2016 1:35 am 
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"In the graph, you can see lines of different colors: BLACK shows the moving BS412 output level and should be below, but as close as possible to, the 0 dB line. RED shows slow volume changes. In general, it's best if this line doesn't drop below -1 dB - bigger drops can be noticeable. GREEN/PINK shows short-term volume drops caused by the compressor. YELLOW spikes show that the de-esser reduced loud highs. The actual drop of the highs is less than what is depicted here. BROWN spikes show the de-basser in action."


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 Post subject: Re: levels and 0 dBr
PostPosted: Fri Jan 20, 2017 2:15 pm 

Joined: Fri May 29, 2015 3:17 pm
Posts: 52
Quote:
"In the graph, you can see lines of different colors: BLACK shows the moving BS412 output level and should be below, but as close as possible to, the 0 dB line. RED shows slow volume changes. In general, it's best if this line doesn't drop below -1 dB - bigger drops can be noticeable. GREEN/PINK shows short-term volume drops caused by the compressor. YELLOW spikes show that the de-esser reduced loud highs. The actual drop of the highs is less than what is depicted here. BROWN spikes show the de-basser in action."
where's the description for white and light-grey?


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 Post subject: Re: levels and 0 dBr
PostPosted: Fri Jan 20, 2017 3:44 pm 
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Ow. White = measured level. Light gray (actually, dotted) = going up in the first minute because it takes 1 minute before you have an accurate number (since the spec says it needs to be calculated over a 1 minute period).


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