General > General Technical Chat
Why do commercials sound so blasted loud?
<< < (5/6) > >>
Zero999:
I would have thought the solution would be obvious. Measure the RMS value of the signal and dial back the gain, if it's too high. Note a normal audio limiting circuit won't work very well because it uses the peak amplitude, when the RMS is more important here.
Terry Bites:
Its that area under the curve stuff again. There used to be a block of pixels (top left) on UK TV just before an ad. There was a project I saw back in the stone age that let you use this block to mute the TV. Now you need AI.
nctnico:

--- Quote from: Terry Bites on November 24, 2021, 04:59:58 pm ---Its that area under the curve stuff again. There used to be a block of pixels (top left) on UK TV just before an ad. There was a project I saw back in the stone age that let you use this block to mute the TV. Now you need AI.

--- End quote ---
Not really... first hit from Google https://blog.gdeltproject.org/using-ffmpegs-blackdetect-filter-to-identify-commercial-blocks/
ejeffrey:

--- Quote from: EPAIII on November 24, 2021, 10:29:05 am ---Compression is the cause of the problem. It is going to be hard to use it as a cure.




--- Quote from: ejeffrey on November 19, 2021, 01:59:33 am ---Many AV receivers have adjustable dynamic range compression for exactly that reason.

--- End quote ---

--- End quote ---

That's not what I was responding to.  I was talking about movies with extremely high dynamic range where a little bit of compression can make it more listenable.
james_s:

--- Quote from: ejeffrey on November 24, 2021, 05:51:02 pm ---
--- Quote from: EPAIII on November 24, 2021, 10:29:05 am ---Compression is the cause of the problem. It is going to be hard to use it as a cure.




--- Quote from: ejeffrey on November 19, 2021, 01:59:33 am ---Many AV receivers have adjustable dynamic range compression for exactly that reason.

--- End quote ---

--- End quote ---

That's not what I was responding to.  I was talking about movies with extremely high dynamic range where a little bit of compression can make it more listenable.

--- End quote ---

That's precisely what the adjustable compression on the receivers he's talking about is there to help with.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod