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 Post subject: Basic Tuning Advice
PostPosted: Fri Sep 19, 2014 5:16 am 
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Joined: Sun Aug 19, 2012 2:31 am
Posts: 9
I'm reading though tuning.html and am looking for verification that I'm doing things right. Here are the first number rows of the short.csv file, sorted by brightness (low to high):

frame brightness scene_change logo uniform sound
1 3 0 0 0 107
25169 16 0 0 0 1387
25170 16 500 0 0 137
25171 16 495 0 0 815
25172 16 495 0 0 194
25173 16 490 0 0 556
25174 16 495 0 0 178
25175 16 500 0 0 130
25176 16 495 0 0 56
25177 16 500 0 0 39
25178 16 500 0 0 18
25179 16 500 0 0 10
25180 16 500 0 0 14
25181 16 500 0 0 7
25182 16 500 0 0 12
25183 16 500 0 0 5
25184 16 500 0 0 10
25185 16 500 0 0 4
25186 16 500 0 0 7
25187 16 500 0 0 3
25188 16 500 0 0 6
25189 16 500 0 0 3
25190 16 500 0 0 5
25191 16 500 0 0 3
25192 16 500 0 0 4
25193 16 500 0 0 3
25194 16 500 0 0 3
25195 16 500 0 0 3
25196 16 500 0 0 3


If I'm reading the tuning file, then the appropriate values for the following attributes would be:

non_uniformity=1
max_volume=12
max_avg_brightness=21
test_brightness=41
max_brightness=61

Is that right??? It seems like my max_volume and non_uniformity are wayy too low.


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 Post subject: Re: Basic Tuning Advice
PostPosted: Sun Sep 21, 2014 5:45 pm 
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Joined: Sun Aug 21, 2005 3:49 pm
Posts: 3215
In digital broadcast you can have a very clean signal, no audio hiss so VERY low levels at silence.
Also non_uniformity can be low in digital broadcast.
I would set
max_avg_brightness=18

Experiment with some values


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 Post subject: Re: Basic Tuning Advice
PostPosted: Mon Sep 22, 2014 6:59 pm 
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Joined: Sun Aug 19, 2012 2:31 am
Posts: 9
Thanks Erik. I'll tinker around. What is the lowest non_uniformity I should consider using? The help suggests that 250 is the lowest, but based on my data above, it seems like it could be set much lower.


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 Post subject: Re: Basic Tuning Advice
PostPosted: Mon Sep 22, 2014 9:11 pm 
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Joined: Sun Aug 21, 2005 3:49 pm
Posts: 3215
I have recordings where 1 would even work. But its rather sensitive so no need to put that low.
For digital recordings 10 could be could


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