The reference level affects just loudness contour that is used to calculate the average power.
Quote from: tot on 12 April, 2009, 09:03:29 AMThe reference level affects just loudness contour that is used to calculate the average power.Does that mean if the reference level is changed, the "volume level" calculated by RG will change accordingly?
Besides, I'd rather see how loud my track/album is, instead of looking at some (less meaningful) negative numbers.
I suggested this:REPLAYGAIN_ALBUM_LEVEL: 98.79 dBREPLAYGAIN_TRACK_LEVEL: 98.35 dB
REPLAYGAIN_ALBUM_LEVEL: 98.79 dB
Audio player can calculate sound pressure level if it knows REPLAYGAIN_xxxxx_GAIN.For foobar2000 you can create column with the following code:
Relative to what? dB is just a relative scale, there are no absolute values.
Quote from: waaateva on 12 April, 2009, 11:54:35 AMREPLAYGAIN_ALBUM_LEVEL: 98.79 dBI often get confused about sound level measurement because it's among those things that I can be explained to me and I'll always forget it 5 minutes later, but IIRC the maximum level a digital file can have is 0dB, and the lowest level for CD-DA is -96dB.
Of course it can! But seriously, you expect people to do that?
Me too. But as far as I know, what you're talking about is dBFS, the Replay Gain level is dB SPL.
Quote from: waaateva on 12 April, 2009, 12:49:05 PMMe too. But as far as I know, what you're talking about is dBFS, the Replay Gain level is dB SPL.That is where it goes wrong, Replay Gain is not dB SPL, but dB relative to -20dBFS pink noise, both adjusted with the loudness curve.
Agreed. And my suggestion is to tweak the standard a little bit, it just seems more logical to me. Some people (including me) don't agree with the 89dB reference, other do. So why not just leave the SPL there, and let them decide what is the "reference"?
OK, have you tried MP3Gain? Can you tell me what kind of dB is in the columns "Volume" and "Album Volume"? I don't care what it is, but I want Replay Gain to store that information, instead of what it's doing now
Coming from someone who uses 92 dB for a target volume in MP3Gain, I fail to see a problem with RG as it's currently implemented.
There's already a tag for this:REPLAYGAIN_REFERENCE_LOUDNESS
Quote from: greynol on 12 April, 2009, 02:07:33 PMComing from someone who uses 92 dB for a target volume in MP3Gain, I fail to see a problem with RG as it's currently implemented.Actually, that's the problem! If you mix your library with mine, who use 89dB, they'll play with different loudness.
I think all replaygain implementations (at least all I've used) use the same reference level. The target volume is adjusted at playback time, not scan time. Therefore you'll both get the same volume.