rbl wrote: > Hi - two questions: > > 1) I have used Foorbar2000 to calculate Replay Gains/Peaks and some > REPLAYGAIN_TRACK_PEAK values are > 1.000. I am just wondering how this > is possible? I also use EZ CD Audio Converter which doesn't produce any > Peaks > 1.00.
To quote from the ReplayGain specification "Psychoacoustically coded audio, such as MP3, does not exist as a sequence of samples until it is decoded. Psychoacoustic coding of a heavily limited file can lead to sample values larger than digital full scale upon decoding. The coded files must be decoded using a fully compliant decoder that allows peak overflows (i.e. has headroom) and may result in peak amplitude values greater than 1.0." Last para of 'Peak Amplitude' section at http://wiki.hydrogenaud.io/index.php?title=ReplayGain_specification#Peak_amplitude rbl wrote: > 2) I listen to a lot of classical music and a lot of tracks have > REPLAYGAIN_TRACK_GAIN > 0.0, but if the Peak is close to 1.00 then these > Gains have no effect. Is there a way to create say 6-12dB headroom so > the +ve gain works? I would have thought that since CDs are 16bit, and > the DACs on my SB3s are 24 bit this should be pretty easy without any > loss of quality? The "Clipping prevention" section of the RG standard -may -be relevant here. (Apologies if it's not!) http://wiki.hydrogenaud.io/index.php?title=ReplayGain_specification#Clipping_prevention Duet x 3, via various hi-fi. LMS on Raspbian/Linux 10 (buster) + OMV5 on a Pi4. ------------------------------------------------------------------------ SpiderJon's Profile: http://forums.slimdevices.com/member.php?userid=21798 View this thread: http://forums.slimdevices.com/showthread.php?t=112866 _______________________________________________ Squeezecenter mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/squeezecenter
