I use the shareware iVolume, which uses Replay Gain as well, but replaces the iTunesNORM tag (and backs it up), so it'll work with iTunes and iPods, with Sound Check. It's 100 times better than just going with the peak normalization (which I believe the iTunes Sound Check uses), but it's not perfect.We're probably confusing terms here, that's all. Replay Gain doesn't just adjust the peak level it, in fact, measures the perceived loudness (using a psychoacousstics modeled on human hearing). Peak level is only one (increasingly small) part of that perceived loudness. The problem he's running into is that normalization DOES NOT (or, hardly) affect the PERCEIVED loudness of a song. That's actually exactly what normalization DOESN'T do.Normalization increases the volume of a song so that the loudest peak in the material is set at 0dB, i.e. Quiet parts in songs and loud parts in songs aren't actually changed relative to each other unless you use compression. Quote:Originally posted by analogika:quote:Originally posted by redleader:Normalization just refers to the process of adjusting the level of different pieces of audio so that they're all the same (where in this case "same" means the average percieved loudness is identical). If you want a more uniform signal (caveat: removing all traces of what makes music seem alive and interesting in the process, just like on the radio), you're going to want to compress the final signal, probably AFTER it leaves your mp3 player.Compression removes dynamics by bloating softer passages and flattening louder passages, making everything seem much more uniformly loud. That's done in the mix, and through compression of the material at the mastering stage - or at the broadcasting stage. ![]() ![]() ![]() Quote:Originally posted by redleader:Normalization just refers to the process of adjusting the level of different pieces of audio so that they're all the same (where in this case "same" means the average percieved loudness is identical).
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