Rockbox Development > Feature Ideas

Pre-gain for non-replaygain tracks.

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saratoga:

--- Quote from: Llorean on June 14, 2011, 01:31:02 AM ---Isn't applying one to all tracks with Replaygain info the opposite amount and then globally compensating mathematically exactly the same?
--- End quote ---

You might be able to work around this by applying an EQ precut of X dB and then raising the replaygain reference level by X dB.  That should prevent replaygain from making tracks quieter.  However I'm not 100% certain of the order in which the gain is applied, so I'm not sure if it'd work without distortion.

Regardless, most replaygain implementations do offer a precut for non-RG tracks, so we should probably do so as well.  If the EQ precut is done first, then it could simply adjust that. 

Multiplex:

--- Quote from: nwimpney on June 13, 2011, 05:56:48 PM ---It would be good to have an option that sets a pre-amp value for tracks that don't have replay gain tags.

--- End quote ---

I just adjusted the replay gain pre-amp so that replay gain tagged files sounded about the same level as un-tagged files. What's wrong with doing that?

saratoga:

--- Quote from: Multiplex on June 22, 2011, 05:04:55 PM ---
--- Quote from: nwimpney on June 13, 2011, 05:56:48 PM ---It would be good to have an option that sets a pre-amp value for tracks that don't have replay gain tags.

--- End quote ---

I just adjusted the replay gain pre-amp so that replay gain tagged files sounded about the same level as un-tagged files. What's wrong with doing that?

--- End quote ---

More clipping, although maybe not enough to really be annoying. 

Llorean:
If pre-amp and pre-cut are applied simultaneously (or just, well, well) that should allow you to prevent any additional clipping, right?

Multiplex:

--- Quote from: saratoga on June 22, 2011, 05:12:38 PM ---More clipping, although maybe not enough to really be annoying. 

--- End quote ---
Erm.. actually I apply negative gain - a cut. I also have Prevent clipping enabled - it works a treat for me but my hearing certainly isn't what it used to be...

Sorry if I sound argumentative - I just want to be sure I'm not doing something stupid :-)

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