luisdent
Headphoneus Supremus
- Joined
- Oct 25, 2012
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Yes, I've seen things like that. You can also do some wizardry in programs like audacity to invert phase and such to compare waveforms in a similar fashion. Essentially you can remove the sonic waveforms that are identical and you are left with what is different... However, the difference in a CD like keane is obvious enough not to need such a program in my opinion.
This all has its genesis back in the days of hafler effect and the reasonably astute work Mark and guys like Bob Carver did to demiystify the trade which apparently went unheeded.
You can look at all the cascacde and FR response graphs in the universe. Go over to that "other site" and they will smother you with them. Essentially it means nothing. Sorry folks, but even the most mediocre driver on the market today will reproduce a single signal accurately. Put a complex piece of music through it and quite quickly you see where it falls apart and cannot handle transients or winds up masking frequencies. Response graphs do nothing to make that clear . A differentialling software on the other hand does exactly that. It tells you where the source and output differ. Pretty standard scientific analasys right now in every discipline from medicine to mechanical engineering, cripes even the food service folks use it to do batch QC. Yet audio still wants you to buy something based on some clown in his basement with a 2 dollar mic recording a signal through a piece of perfboard on a pc which is most likely compromised by the far easter porn sites he vistits on an hourly basis.
Take a differentialling piece of software. Do a rip of your CD, SACD, whatever source then do a capture of your playback system rendering it, and you will have a much better picture of what is going on in your world, rather than guessing how it compares to some picture of someone elses.
thats 3 cents worth.
No one has to guess. I uploaded a sample file. It's not minor differences or complex mathematical reasoning I'm preaching. I'm just showing obvious dynamic compression in an appropriate way with waveforms and audio files the most reasonable way possible.
And inverting phase tricks in a DAW is probably similar to what some of those "differential" apps are doing. ...not sure what you mean by all if this. This is just a simple way to show the improvement of dynamics when a master is not overly compressed. It is not an attempt to compare other differences (although I don't believe there are any with this album). Listen to the songs. Go buy the SACD and CD and listen however you wish to, the difference is obvious enough that i could hear either version anyday of the week in my er4sr without knowing which is which and i could identify them.
So I'm not sure what you meant by the talk about drivers and frequency graphs? No one was talking about that currently. Did i miss something?