Mark Lanctot;283970 Wrote: > OT: > > My A/V receiver uses a dB scale for volume, -50 dB to +10 (or 15) dB. > > This does seem to correspond to actual dB when playing its > internally-generated pink noise test tones, a change of 1 dB does > correspond to a change of 1 dB on an SPL meter. > > So - if I was to calibrate the system, does this mean that -14 on the > volume scale should produce 89 dB SPL? This 89 dB reference level means that a level of -14 dBFS on the meter (14 dB below the maximum representable value of a digital audio system) should produce a level at the listening position of 89 dB SPL. Think of a movie theater, where patrons do not have individual volume controls. To comply with the 89 dB reference level, you would set your volume control exactly to the point where the -14 dBFS pink noise track of a test CD produced a level of 89 dB on your SPL meter at the listening position.
This seems to be some sort of version of the Bob Katz "K" scale system: http://www.digido.com/bob-katz/level-practices-part-2-includes-the-k-system.html He recommends the somewhat quieter 83 dB SPL as the reference level, regardless of whether it is tied to -20 dBFS, or -14 dBFS. More discussion of this topic here: http://www.hydrogenaudio.org/forums/lofiversion/index.php/t52991.html In the end, I believe ReplayGain reference of 89 dB will result in a ReplayGain adjustment of 0 dB when presented with pink noise at -14 dBFS, at least this is what I think it is supposed to do... -- Timothy Stockman ------------------------------------------------------------------------ Timothy Stockman's Profile: http://forums.slimdevices.com/member.php?userid=8867 View this thread: http://forums.slimdevices.com/showthread.php?t=44938 _______________________________________________ ripping mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/ripping
