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Frequency waterfall charts of a few familiar favourites

#1
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6/11/03 at 4:07am
  • Joined: March 2003
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Cavalcade THX trailer. LFE down to single digit frequency. Woah.......



T2 THX trailer. This finale sounds different since there isn't the 20hz trail off.

More coming up....... LOTR, SW2 landing sequence, ........ any suggestions?
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#2
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6/11/03 at 9:44am
  • Joined: August 2001
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Very Cool, Ming. Thanks for the waterfalls.

any suggestions?


Monsters Inc. (Sock Explosion)
Atlantis (Leviathan moves)
Black Hawk Down (F'ing Irene) should be strong content below 10Hz.
JPIII (Dino-fight)
Blade II (various)
Pearl Harbor

JKS

You brought two too many.
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#3
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6/11/03 at 9:52am
  • Joined: November 2002
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VERY COOL!!! I can't wait for SW2.

Tee

\"Enjoy Movies & Music.\"

My Home Theater

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#4
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6/11/03 at 11:04am
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Black Hawk Down's F'kin Irene is a realt stunner,

Right down to 5hz, this one is one to feel for. Unfortunately, not all will know 5hz bass was even there at all.

Something I never expected where even streaks of bass freq that made towards to sound of the rotors. I suppose its intentional within the movie itself and not a problem with my equip.

Everyone should go thru this scene and see if their sub responses to the 5hz bass. It looks really cool to see the driver move in/out that I wondered when the cone would actually detach from the rubber lining.



I'll do SW2 tomorrow, though I can only remember the first landing sequence having stunning bass.
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#5
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6/11/03 at 12:12pm
  • Joined: January 1998
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Good work Ming...makes me want to fire up BHD tonight.

Kyle Richardson
Acoustic Visions

AOL Instant Messenger Name: kyler70
MSN IM: acousticvisions@hotmail.com

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#6
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6/11/03 at 12:16pm
  • Joined: April 2002
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Which DVD version is that of BHD? I listened to it over the weekend and was impressed by some of the LFE when the helo's were taking off.
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#7
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6/11/03 at 6:39pm
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Hey Ming,

Very cool graphs.

How about some LOTR. I'm a little behind times because I just got this 2 days ago and now I see what everyone is talking about.
Nousaine list
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#8
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6/11/03 at 8:06pm
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Great work Ming. Sure is nice to see the visual. Can I put a vote in for (PEARLE HARBOR) when the Arizona explodes/heaves in the air? SW2 landing and Flyby would be nice to see also. Thank you for the info.
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#9
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6/11/03 at 8:21pm
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Thanks guys, ...... with all the thumbs up I'm getting, I'm even more motivated to posts more waterfalls quickly.

I'm getting the waterfalls for SW2 at this moment. Check back soon.
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#10
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6/11/03 at 8:30pm
  • Joined: September 2002
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Very cool stuff.

My vote would be LOTR at the moment when Bilbo et al are hiding under the tree root from the ring wraith. I know people love the beginning scene, but I'm convinced the tree root one has better LFE. Both scenes would be great to have a quantitative comparison, but I don't want to be too greedy.
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#11
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6/11/03 at 10:02pm
  • Joined: July 1999
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The ring hitting the ground[with Sauron's finger] is loudest deepest moment,but it's very brief.

\"You Hungarians always disagree\"

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#12
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6/12/03 at 3:45am
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SW2:AOTC Flyby



Not much dialogue in the scene, but lotsa deep end bass. Less upper bass, so this sequence gets the overall deeper bass feel. But thats not all.

Most of the bass is centered around 40hz to give normal subs a good work out. But those with the "more" able subs will not only get to hear, but get to feel the ship too.

Right from the first few bass peaks, bass extends lower than 15hz.

More interestingly, is the sequence from 00:02:39 to 00:02:53. Here, we have low freq sweep from 30hz to just below 20hz. A slow sweep that bears the distinct low freq bass of eyelid batting, ear drums pressuring bass. Rather impressive 14sec of rafters rattling bass. Expect to feel the ship land; if you don't, you won't know the experience you're missing till you've felt it.

Only got time to do this plot today. Will follow up further scenes in SW2 soon.
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#13
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6/12/03 at 7:49am
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Thanks again, Ming! Lots of people have been waiting a long time to see a visual analysis of this fly-by sequence.

I love the time stamps and the dialogue cues that you've added to the graphs. It definitely helps me orient myself as to what's happening when.

Keep 'em comin'!

JKS

You brought two too many.
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#14
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6/12/03 at 2:17pm
  • Joined: May 2001
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Hey Ming fantastic graphs, how do you do them?

Here was my gear info... Now is on my profile, in case you want to know

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#15
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6/13/03 at 1:02pm
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LOTR: Battle Scene

Most of us knows this scene very well. What we don't know is how low it goes. Here we see at least 2 instances were things limbo lower than 10hz. But its not gonna pull attention to itself since there is just as much (if not more bass) happening else where.

The one thing interesting is the reverse sweep during Sauron's spontaneous combustion. Its an interesting Sound FX to hear. The last instant of the reverse sweep is actually peaks quite loud, although it doesn't seem so during actual hearing.

IMO, this movie really has way overcooked(really loud) and hyperactive (lotsa) bass.

I might try checking the raw plots and verifying against my setup at listening spot.

Next stop is Jurrassic park 3, Telarc's T2 and jurrasic lunch sound tracks.
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#16
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6/13/03 at 2:24pm
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Nevermind, Im able to do them now. Thanks.

Here was my gear info... Now is on my profile, in case you want to know

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#17
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6/13/03 at 3:08pm
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Wow that scene is HOT! Lots of red all over the spectrum.

Tom V from SVS posted soon after the release of the Theatrical Cut of the Fellowship DVD that this sweep was around 80Hz down to around 50Hz. I guess he was right. Hard to believe it's not lower than that - just loud I guess.

Ming,
Was your analysis of the theatrical 2-disc set or the Expanded 4-disc (DD or DTS)?

I'm anxious to see the "Jurassic Lunch" track. That's one of my favorite sub demos.

JKS

You brought two too many.
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#18
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6/13/03 at 3:29pm
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Hmm, it seems that Sauron's strikes appear to have the lowest, loudest bass. Coolies! It's a shame I don't have such a subwoofer that can dip this low.

Reverse sweep death knell sounds terrific though..
http://www.eyeforfilm.co.uk/
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#19
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6/13/03 at 4:43pm
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what software are you using for this analysis?
My System // PEQ Program // 1/12th octave test tones // Gomer Cable

AOL IM= Live Hz
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#20
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6/13/03 at 10:06pm
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Sound Forge can make the "sonogram", but you have to get the AC3 from the DVD and then decode the .1 to a wave file to do the analysis.
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#21
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6/14/03 at 9:55am
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Jurassic Lunch is a magnificent bass fest. This track is taken from Telarc's "The Great Fantasy Adventure Album". I'm sure subwoofer freaks will want to permanently include this as one of their test track for subs. No subs will render Jurassic lunch in its true glory except for the very few best monster subs around. Why? Lets take a look.



Other than when the dino is roaring, munching and burping, his footsteps (approaching and leaving) all score lower than 30hz. With the lowest at 10hz, its gonna move lotsa air. Port noise aside, becareful of getting yourself sucked into the sub's ports.

Jurassic lunch is horrific; the few tracks that only feature bass lower than 30hz. Less able subs will just reproduce nasty harmonics, if not totally silent. Is this a great litmus test or what?


Just for kicks, I did another waterfall for T2 Theme in the same disc from Telarc's "The great Fantasy Adventure Album"


T2 Theme




Just want to point out the gobs of bass during the "explosive" ending. Right down there at 5hz, do give this a try, since Terminator season is rounding the corner again.

For sure, the explosion will be so darn loud, you'll feel its literally in your head. Don't be frightened if your vision blurs and your heart skips a beat. The infrasonics here verifies that its the sub thats blurring your vision. I can't say the same if your heart really skips a beat, but be warned that may happen if your sub can't handle the extra loud ultra low bass and a scary "clanck" comes from sub.

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#22
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6/14/03 at 11:26am
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Fantastic, MingL!!!

I just ordered the Fantasy Adventure Album and can't WAIT to hear it and compare to these graphs you did. Wonderful job!! Thanks!!

I just put in a PAIR of SVS Ultra's w/ 1kw power. Ran them for the first time last night (before tweaking/calibrating)and just to see what they'd do, I played the LOR Sauron sequence a couple times (got up to -2dB before I wussed out). When I went upstairs to report that they are working, Sweet Nancy said (not so sweetly): "Don't you EVER do that again!! Felt worse than an earthquake up here!" Hehehehe

Gordon

Gordon Groff
www.sweetnancy.com
Fine Music For \"The Rest Of Us\"
See Gordon and Sweet Nancy\'s Home Theater!

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#23
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6/14/03 at 11:59am
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How about 'depth charged' from U571? A concussion-fest if I ever heard one...
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#24
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6/14/03 at 4:05pm
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Anthony, Spectralab can do similar graphs. I wonder why Ming doesn't want to tell us the name of his program??

Here was my gear info... Now is on my profile, in case you want to know

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#25
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6/14/03 at 6:14pm
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How about 'depth charged' from U571?

SVS has this one on in their FAQ.

http://www.svsubwoofers.com/faq.htm#moviedemos
Nousaine list
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#26
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6/14/03 at 8:19pm
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Don't worry guys. It seems I've overlooked the name of the program amidst all the excitement of posting these plots.

I use Spectrum Lab to help me plot these charts. Get the program from here http://www.qsl.net/dl4yhf/spectra1.html

Its made by a bunch of Ham radio ppl for analysing audio signals. Its a pretty nifty program.

Just so to ensure I'm measuring stuff correctly, here's how I setup the volume levels so that I don't get false readings associated with overload saturation, harmonic and intermodulation distortion . Use Cooledit to generate single tone to test for harmonic distortion. Saturation test passes only if the single tone does not manifest itself elsewhere other than the fundamental harmonic. Lower recording volume will help. Generate again 2 tones, one at 30hz and the other at 50hz for Intermodulation Distortion or IMD. Test this with Spectrum labs. Test passes only if the 2 tones only show itself at 30 and 50hz. Intermodulation (IM) products will show if there are harmonics at 20hz, 70hz, 90hz and so forth which is not what we want. Generally, adjusting the volume levels in the mixer will tend to be enuf. With these tests, we've already done enough tests to ensure the recording levels are correct and not saturate the analyser/hardware to give false readings.

Note, it isn't gonna be very accurate waterfalls, but its enough to perform these types of plots with enough accuracy.

The tests descriptions are abit brief, but to explain all will require a semester long college lecture on RF engineering. But I hope this is enough to seem logical rnough to the more adventurous.

Anyway, happy analysing. I'll still keep on feeding in waterfall plots now and then when I come across something interesting. Now, where is my JP3 DVD?.......:b
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#27
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6/14/03 at 9:32pm
  • Joined: May 2001
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Thank you very much for the information! I will try to upload later a similar graph made with Spectralab with the jurassic lunch track.

Here was my gear info... Now is on my profile, in case you want to know

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#28
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6/16/03 at 10:38am
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MingL I wonder if you can host the image? There is no option to upload it to the forum.

Here was my gear info... Now is on my profile, in case you want to know

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#29
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6/18/03 at 3:53pm
  • Joined: January 2001
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Hello guys, I think there was a database problem that killed my last post but, i just wanted to say thank to Ming for taking out the time to do the charts as all of us were wanting something to measure with to sorta see where we are on the bass side of things. thanks for the extra detail in those graphs too! I have one request: when you get the time, can you do a small chart of the very beginning of Toy Story 2? I have always been interested in what a chart would look like during the opening intro. THanks again!
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#30
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6/19/03 at 7:15am
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Keir,

Toy Story 2 is another one that SVS has on their FAQ page (See link in post #25 above.)

JKS

You brought two too many.
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