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Frequency waterfall charts of a few familiar favourites - Page 10

post #271 of 531
3/28/05 at 11:06pm
Kaj,

Can you show me how do you do these stuffs? I've downloaded the spectrum lab software, but I'm pretty much clueless. Can you walk me through the settings? Thanks.

Al,
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post #272 of 531
3/29/05 at 5:57am
keep it up!

very very impressive.

just a suggestion, u could try the Close Encounters of the 3rd Kind when the alien mothership arrives.

it effectively pressurized the entire theater (an open area of easily 5000-8000 cubic feet at 14dB below reference. Subwoofer running at 15dB hot.

even my dog ran away tail between its legs when i played that chapter.... reallly FREAKY.

=)
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post #273 of 531
3/29/05 at 8:13am
Hi Kaj,
the 2nd one is exactly what I was thinking of! I guess my bad 'paint' rendition turned out ok (that or you're a mindreader)
I'll save the pics now and try to do a side-by-side against that and the original and provide my take on the various profiles.

Ok... here's my stitch of the three profiles (couldn't find one using the standard/default one)


Just between the three, I'm partial to the middle one (and not just because it was my suggestion ) because of the increased amount of detail up in the 80hz-90hz range. Also, the edge of the central red blob seems better defined.

In terms of analysis, I guess the difference is that there's a more gradiant ramp-up of db's in the middle chart compared to the other two. For those who just wants to 'see the needle going to red', the bottom one might be best, since they can say 'big red blob = good', and skip the "ooh, look how the sound engineer has painted in nice even strokes" or "ouch, check out those harsher and more intense ramps"

well, that's my 2cents.
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post #274 of 531
3/29/05 at 11:25am
Remember that those levels are not absolute levels and they can be altered in many ways. DVD-player output level, Windows mixer, AC3 filter, Spectrum Lab program itself. When comparing two graphs please remember this. You can compare graphs made from that same movie by the same user (if he doesn't change settings).

I will plot The Haunting and SPR tomorrow. I think I use those "good old" spectrum colours.
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post #275 of 531
3/29/05 at 12:32pm
yeah, i should have mentioned that

Use the charts as a guide-line only. There are MANY factors which would change the volume levels and frequency respones to each different person, and how they actually play it back in there system.
So don't be taking or comparing any of these charts as an absolute guide for the loudness aspect.
Use them to get a general idea of what is low and loud
The frequency info should be virtually identical across the board, as either the info is there, or it is not, but the amount or the levels of info at that frequency will vary due to setup (eg. colours, hardware, the software iteslf and the way it was mixed).

Well so far for my charts, i've had one vote for one chart style using th modified traditional colours. if i get no more requests i'll go with that one. (note: i can send the colour profile and settings overview for Spectrum Lab via email if you want similar results )

Cheers
KJ
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post #276 of 531
3/29/05 at 12:55pm
You could send me the colour profile just for fun, use irissanen@msn.com. No need for the settings. I am using Dvd-rom player and AC3 filter, so our results are not comparable (I mean levels) even if we use same settings in Spectrum Lab. Main thing is that frequency contents are almost indentical (you are plotting only LFE channel).
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post #277 of 531
3/29/05 at 5:47pm
I personally like the middle one. The one that looks like it pretty much always has. Blue where there is not much of anything. Green for low SPL content. And Yellow and up for the good stuff. It is easiest to read.
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post #278 of 531
3/30/05 at 9:25am
Blade II (PAL R2 DTS 6.1 Discrete)

Jared Enters Stairwell


Blood Donation Room


First shootout


Second shootout


Motorcycle Crash


Extended Fight Scene


Door opens


House Of Pain


Copyright Ilkka R
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post #279 of 531
3/30/05 at 9:34am
Here is the Blade II. Ed, you can use this in your review if you want.

The Haunting and SPR will have to wait. There is a massive amount of work with these charts...
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post #280 of 531
3/30/05 at 10:48am
Thx Ilkka!

Finally i get to see that great bass that i feel.

Ilkka,

Can you plot the sewer sence when blade sets off the light bomb off?

thx.
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post #281 of 531
3/30/05 at 10:51am
I could not resist...

The Haunting (sneekpeek) (R1 NTSC DTS 6.1 Discrete)



Copyright Ilkka R

This time I used the colour profile created by Kaj. Tell me if you like it and I will plot the future charts also with using that. I kinda like it more.
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post #282 of 531
3/30/05 at 11:21am
Quote:
Can you plot the sewer sence when blade sets off the light bomb off?

Requests are my weakness...

Blade II


Copyright Ilkka R
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post #283 of 531
3/30/05 at 12:01pm
nice

thanks
KJ
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post #284 of 531
3/30/05 at 12:51pm
Quote:
Requests are my weakness...


Ilkka, looks great thx!

One last request on Blade II the final fight between Blade and the king of the Reapers, when he pushes the art peice to try and crush Blade. There is a sereious "deep bass" when it hits the floor, after he rolls away from it.

Quote:
The Haunting


WOW! Look at all that PINK!!!
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post #285 of 531
3/30/05 at 1:17pm
Quote:
One last request on Blade II the final fight between Blade and the king of the Reapers, when he pushes the art peice to try and crush Blade. There is a sereious "deep bass" when it hits the floor, after rolls away from it.


You were right. Nice pink at 20Hz!

Blade II

Copyright Ilkka R
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post #286 of 531
3/30/05 at 1:19pm
requests???

Resident Evil:Apocalyse, SUV crash, nuke

Brotherhood of the Wolf (French DTS track), girl tumbling down hill, etc

Dante's Peak DTS: earthquake at school, various others

LOTR-ROTK: too many to count...

Day after Tomorrow; wave building up and entering city, tornadoes.

Pearl harbour (vista DTS): arizona, etc.

keep up the great work!

David
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post #287 of 531
3/30/05 at 1:28pm
Quote:
You were right. Nice pink at 20Hz!


WOW! and GEEEZ! Thx again.

Quote:
LOTR-ROTK: too many to count...


But.... how about the heart beat near the end when Frodo is loosing it.

Quote:
Day after Tomorrow; wave building up and entering city, tornadoes.


Yep totally agree the killer wave rolling into New York, and the clip when they show the eye of the storm (in space) right before he jumps into the fast food resturant after looking at the flag freeze instantly.

The work is outstanding!
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post #288 of 531
3/30/05 at 1:37pm
And some people say there isn't any bass below 30 Hz worth mentioning in movies.......(sigh).

For example, that red blotch at 14 Hz in Blade II at the 0:37:10 timestamp IMO definitely enhances the way that scene is perceived by the viewer.

The falling art piece - great choice tee - a bone crushing 20 Hz blast - awesome!

Notice how the sound mixing engineers throw a bone to mere mortal subs with some hot stuff at 30/40 Hz, too? That's because they know 98% of the subs out there will completely ignore the real bass hit in this scene.

Of course the entire spectral mix is what defines the character of that bass hit, so it would obviously sound different with just the 20 Hz hit and nothing else....but you know what I'm getting at. If your sub can cleanly hit that 20 Hz pink with authority, that timestamp becomes a totally different viewing/listening experience.

Keep on preaching, guys.....the spectral charts don't lie.
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post #289 of 531
3/30/05 at 1:40pm
David P, I have the Brotherhood of the Wolf (DTS) and Pearl Harbour (only DD 5.1 though). I will plot them next week.

Maybe I can rent or buy those others some day.

You guys are drowning me with all this...
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post #290 of 531
3/30/05 at 3:29pm
Thanks for using the shifted-spectrum profile, it's less crowded with low db stuff.

I don't understand your points about why the plots will vary.
Shouldn't the bitstream come back the same if you're taking the LFE channel directly off the discs?
Or are these plots not coming directly from the DVDs, but mic'ed or via other equipment?

perhaps once we have the spectral profile standardized, we should standardize the extraction protocol?
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post #291 of 531
3/30/05 at 3:31pm
Quote:
Notice how the sound mixing engineers throw a bone to mere mortal subs with some hot stuff at 30/40 Hz, too? That's because they know 98% of the subs out there will completely ignore the real bass hit in this scene.

just out of curiosity, is there a way to tell (from the charts) if those are harmonics/artifacts showing through from the original 20hz signal, or actual content engineered purposefully?
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post #292 of 531
3/30/05 at 5:12pm
The part in Pearl Harbor that would be nice to plot is when the Arizona blows up. Sounds deep but I have never seen a plot for it.

Ilkka, the color scheme you did for the Haunting is purfect. Try plotting the scene where the ceiling is coming down on Nell. This part really shakes my house!
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post #293 of 531
3/30/05 at 5:16pm
Quote:
And some people say there isn't any bass below 30 Hz worth mentioning in movies.......(sigh).


I know what you mean Ed, I was shocked once i got a sub/s that could go below 30hz how much i was REALLY missing! The movie has so much more depth when it's bass helps convey whats going on on screen at every moment, and subs that are capable of going subsonic gives a real presentation than bass shakers IMO.
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post #294 of 531
3/30/05 at 5:21pm
Quote:
Try plotting the scene where the ceiling is coming down on Nell. This part really shakes my house!


Hey Scott,

I bet it's a strong 30hz!
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post #295 of 531
3/30/05 at 6:10pm
Quote:
The movie has so much more depth when it's bass helps convey whats going on on screen at every moment, and subs that are capable of going subsonic gives a real presentation


You hit the nail on the head there terence.
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post #296 of 531
3/30/05 at 6:24pm
Quote:
just out of curiosity, is there a way to tell (from the charts) if those are harmonics/artifacts showing through from the original 20hz signal, or actual content engineered purposefully?


Well it's ripped direct from the DVD, so they aren't artifacts from the subwoofer or anything like that....what say you Illka?
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post #297 of 531
3/31/05 at 1:36am
Quote:
I bet it's a strong 30hz!


The whole sequence? Just as she notices that it is moving, I feel the room pressurize a bit. It feels like a good 25hz or lower.
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post #298 of 531
3/31/05 at 7:26am
Quote:
just out of curiosity, is there a way to tell (from the charts) if those are harmonics/artifacts showing through from the original 20hz signal, or actual content engineered purposefully?
--------------------------------------------------------------------------------

Well it's ripped direct from the DVD, so they aren't artifacts from the subwoofer or anything like that....what say you Ilkka?

Nothing is added and nothing is deleted. Those charts are a direct stream from actual DVD. Signal stays digital all the time.

Only thinkg that is adjusted is the overall level. As we al know, some DVDs are mastered way hotter than others. If I don't adjust the level, it looks like some movies have much louder bass (pink all the time) than others.

That is the same reason why you can't compare charts directly. Or compare my charts with the ones from Kaj. Relative levels between different frequencies are same with all charts, absolute levels are not.
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post #299 of 531
3/31/05 at 8:23am
The Haunting (R1 NTSC DTS 6.1 Discrete)





Copyright Ilkka R
-------------------------

I'm sorry about the lack of screenshots, I'm just too buzy right now. I'll add them later. This movie has some SERIOUS bass!
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post #300 of 531
3/31/05 at 8:56am
Pearl Harbour (R2 PAL DD 5.1)







Copyright Ilkka R
--------------------

Notice that this is a DD 5.1 version, not DTS. It might be different.
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