Originally Posted by m. zillch
The detection method they use called a TT meter has flaws in detecting the dynamic range of vinyl, so says a professional mastering engineer who says on an album he personally mastered for both CD and LP
, which came from the exact same master file, ended up showing notably different ratings even though they should have been exactly the same:
Jump to 4m48s if you want to cut to the chase.
Yes and no
Firstly, the DR Database hasn't been using the TT meter for quite a while. It uses the MAAT MKII ANALYZER
That said, the TT Meter as used in that video was correctly measuring both waveforms. So it wasn't actually flawed. The measurement ratings should not have been exactly the same, because the waveforms are not exactly the same.
What is interesting though is that the same master was used as the source with respect to both the digital release and vinyl pressing, and that this has resulted in differences in resultant waveforms accordingly.
These differences are clearly due a combination of aspects relating to the vinyl pressing and the characteristics of the vinyl format itself. However, this should come as no surprise, given it is already well known that the digital format has the potential for greater accuracy as compared with the original master, as is evident from this example.
However, it is important to note that this example is in fact not representative of the phenomenon to which I have been referring, both in my previous posts, and my article.
See here the comparative waveforms in this particular instance:
IMO these waveforms actually look to be very similar indeed, so the 'revelation' that the same master has been used for each is not actually all that surprising to be perfectly honest. Hence this is a poor example.
It does mean however, that folks should not solely rely upon dynamic range measurements, and should look to what is going on with the actual waveforms, which is what I do all the time myself personally. But whilst the difference in measured Dynamic Range can be part explained by this difference that results due to the vinyl pressing and characteristics of the vinyl itself and its playback, this will not account for the many instances wherein the difference in measured Dynamic Range is greater than in this example. For example, it is not uncommon to see instances wherein the digital release has a measured Dynamic Range of 4-6 whereas the Vinyl is 12-14+.
This is what I am talking about... See the difference in waveforms between these two releases of the same music album, in this example being ABBA's The Visitors:
Here it is very obvious that different masters have been used, unlike with respect to the example in that Youtube video wherein it's pretty obvious that the same master has been used for both. In the 1982 release you can see that the full dynamic range has been retained intact. In the 2012 'remaster' CD release you can see that this has fallen foul of the Loudness War mastering phenomenon to which I have been and am referring. The gain has been over-amplifed and compression applied, and if you were to zoom in on the waveform you will see that there is horrendous amounts of clipping.
Here is another example wherein I have zoomed in on the waveform for you that shows what I am referring to here:
This phenomenon will not occur with Vinyl unless is it the more recent Vinyl releases where in some instances the same abysmal digital master that has been used for the digital release has been used for the Vinyl pressing as well. In which case you won't be seeing the same extent of Dynamic Range difference in the measurements and the resultant waveform will look FUBAR in BOTH instances.
Ultimately, it's not the format that really matters here it's how good (or bad) is the mastering