Phil Elliott wrote:Either that, or it's me ... I'm the only one that can hear Keith Moon laughing on the "Who Collection" mix of WGFA.
Must be me
Surely any true dropout is visible on the waveform?
Andreas wrote:krabapple wrote:For IV I've only looked at Four Sticks, but the fade there looks actually a little bit longer on the remaster
That's true in this case,but the difference is only about one second. On the other hand, Going To California is four seconds shorter on the remaster, and I mean four seconds of music.
You are right....what does it mean? Why would they filter at 21 KHz?
D y'all think it's better to compare files *after* they've been normalized, or does it make more sense to compare them at 'native' levels?
After normalization, of course. But the average volume or the volumes of some sections can still be different.
krabapple wrote:Phil Elliott wrote:Either that, or it's me ... I'm the only one that can hear Keith Moon laughing on the "Who Collection" mix of WGFA.
Must be me
Surely any true dropout is visible on the waveform?
Phil Elliott wrote:After the channels were swapped, I discovered that there was a one sample offset between the two channels. I brought the right hand channel forward by one sample on my disc. After doing this, with the exception of 3 errors, everything else was identical.
Phil Elliott wrote:Maybe what I class as a drop out is better refered to as "tape defect". You never lose the sound altogether, but levels keep drifting, treble keeps dipping, that kind of thing. I guess that's not going to show up on a waveform...
Andreas wrote:krabapple,
could you elaborate what kind of graphs you are creating, how you do it, and could you post one of those here? (I do not have any "remastering" software, just primitve wave editors).
Phil Elliott wrote:krabapple wrote:Phil Elliott wrote:Either that, or it's me ... I'm the only one that can hear Keith Moon laughing on the "Who Collection" mix of WGFA.
Must be me
Surely any true dropout is visible on the waveform?
Maybe what I class as a drop out is better refered to as "tape defect". You never lose the sound altogether, but levels keep drifting, treble keeps dipping, that kind of thing. I guess that's not going to show up on a waveform...
krabapple wrote:It would definitely show up in a waveform, though you would more likely be able to spot it in a spectral analysis.
lukpac wrote:krabapple wrote:It would definitely show up in a waveform, though you would more likely be able to spot it in a spectral analysis.
A dropout, yes. A treble "dip" - probably not. Certainly not easily.
Phil Elliott wrote:Channels are REVERSED on my LZ IV disc, harmonica on right channel in "When The Levee Breaks", etc ...
Dropouts:
Stairway To Heaven:
5.28 - left channel drops out briefly
Going To California
1.54 - left channel drops briefly
krabapple wrote:Phil Elliott wrote:Dropouts:
Stairway To Heaven:
5.28 - left channel drops out briefly
Good call! There is a high-frequncy (5 kHz on up) 'dropout' readily visible in the left channel at 5:28:06 , using spectral view.
krabapple wrote:Going To California
1.54 - left channel drops briefly
Not sure I see anything truly dropout-like in the left channel. I do see what may be a tape edit...the view brielfly becomes weird-looking in both channels at 1:53:25 and most of the track goes quiet. Are you talking about a moment *just before* Plant sings 'throw me a line..." ? Or do you mean something *during* his vox?
krabapple wrote:The strange looking bit happens before his vocals come in. There's something possibly dropout-like soon after, but it is actually happening in both channels, and then another soona fter that where the drop is morein the left than right (at the word 'if'). Hard to tell if this is in the mix, or a flaw. At relatively low resolution, the weird area (center) looks like this: