Help me out with this video, please

Um so why don't you? http://www.google.com/search?source...T4ACGW_enUS328US328&q=audio+analysis+software

That should get you started. The audio does NOT fit the video or the reactions. The explosion is entirely too loud for the reactions of the 4 men seen in that video. Anyone with half a brain caught that the minute they saw it. Says a lot about you, but I'm not surprised having read the other nonsense you spew on here.

I noticed the same. In my experience, during a fire scene, any explosion heard by firefighters is followed with some type of reaction. Either ducking (natural reaction, considering flying debris could be coming at you) or saying "OH ****" or something along those lines.

The guy on the left side barely reacts to the "explosion", and the guy on the phone mearly turns around. Not exactly the reaction you'd expect.
 
Not that it's particularly important. The fact that we're talking about an explosion is actually irrelevant.

If explosion sounds are notoriously difficult to record with any accuracy, an audio signature for one that was captured accurately would likely not match the rest of the audio for obvious reasons.

It could be any sound you like; the three points will still indicate the sound was fake. It has more to do with microphones than anything else.

Just curious, here. Why do we never see you pipe up when 9/11 bedunkers insist that the absence of signature explosion sounds in most WTC videos means that there were no explosions? Bedunkers always seem to want it both ways. Both the presence of explosion sounds and the absence of them indicate, to them, no explosions. :rolleyes:

Just download the video and load it into sound editing software.

I may sometime when and if I care enough. I would also compare it to other explosion sounds captured by microphone and available on video. My guess is I would find nothing unusual.

For example, if the explosion and audio were recorded together there's no way a lower dB sound in a given frequency would peak but a higher dB sound in the same frequency would not.

Unless the higher dB sound is clipped, for obvious reasons. I don't mean to insult your intelligence, but this would seem to be an obvious explanation.

I don't think you really understand the points I've made. The points I've raised are based on limitations in the microphone. The actual sound source is pretty much irrelevant. A microphone cannot distinguish between different types of sound, it just collects everything it receives. The only theoretical way you could capture live what we see on that video is if a sound mixer was dynamically mixing the audio during the take, but that would require them to know precisely when the explosion is going to happen, and even then the level shift is instantaneous so it would have to be a sound operator with inhuman performance.

So recordings of explosion sounds in controlled demolitions are mixed live at the time as well? How do those sounds get replicated with any degree of accuracy? Have you compared your analysis of this audio with some from recorded demolitions?

I don't have a theory. I don't care. My only interest was in whether the sound we hear is genuine or not, which it isn't.

I have to kind of wonder about the professed neutrality of someone who feels the need to digitally analyze a piece of audio that most would not consider remarkable or unusual. Obviously you had some kind of theory or you wouldn't have bothered. Moreover the claim you're making begs an obvious question, which could further inform your analysis: what event is the "faked explosion" intended to replace? What were the firefighters reacting to, if not that sound?

Secondly, I might be more inclined to believe you if you weren't the only person who is making this claim. If audio analysis is so easy, surely someone else by now would have discovered the same thing you did? It's a pretty widely distributed video and there are a heck of a lot of bedunkers out there. You seem to be the only one who came to these conclusions. Odd.
 
PS: can you do a screen capture of the segment in question?
 
Stop trying to shift the burden of proof, Ergo. I'm pretty sure I could reproduce similar results with my meagre Audacity experience.

You haven't actually made a single claim, besides incredulity.

EDIT: Also, you've already dismissed the results several times. Why should it matter how many people have found similar results? In fact, why should it matter at all? That's rhetorical; it shouldn't, and doesn't.
 
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If explosion sounds are notoriously difficult to record with any accuracy, an audio signature for one that was captured accurately would likely not match the rest of the audio for obvious reasons.


You still don't get it, at all.


Just curious, here. Why do we never see you pipe up when 9/11 bedunkers insist that the absence of signature explosion sounds in most WTC videos means that there were no explosions?

I've only heard it in relation to specific things, such as the WTC collapses. Conventional demolitions use high-explosives which are incredibly loud. Any video of the moments leading up to collapse would capture deafening explosions (like an actual CD). There's even video recorded right in the lobby of WTC1 at the moment WTC2 collapses. No explosions.

In fact the entire reason Conspiracy Theorists introduced the "thermite" hypothesis was because they finally had to admit the absence of irrefutable loud explosions in videos ruled out conventional CD.

It's funny, actually, to think back to a time when thermite wasn't mentioned, and conspiracy theorists focused on conventional demolition, hammering on how the collapse "looked" and artificially enhancing wind noise from video taken five miles away to "prove" there were loud explosions. Laughable. Thermite was a late introduction, a desperate rearguard in the face of overwhelming odds.


Bedunkers always seem to want it both ways. Both the presence of explosion sounds and the absence of them indicate, to them, no explosions. :rolleyes:

I've not said anything about the presence or absence of explosions. We're talking about the authenticity of a specific sound in a specific video.


I may sometime when and if I care enough. I would also compare it to other explosion sounds captured by microphone and available on video. My guess is I would find nothing unusual.

You still really don't get it at all.


Unless the higher dB sound is clipped, for obvious reasons. I don't mean to insult your intelligence, but this would seem to be an obvious explanation.

I don't mean to insult your intelligence, but you don't even know what you're talking about, do you?

The higher dB sound does not clip. Do you even know what "clipping" and "peaking" mean in relation to audio? I am guessing not. The explosion sound is not clipped at all. This means the microphone didn't peak at all during recording. Yet a lower dB sound in the same video (the people speaking) is clipped. It's quite simple. If the dialogue peaks, and the explosion happened at the same time, the explosion has to peak too. There's no way around it.


So recordings of explosion sounds in controlled demolitions are mixed live at the time as well?

Not normally. Every CD explosion I've ever heard recorded up reasonably close peaked the microphone. Not that this really matters, as once again you're floundering in water way over your head. Every single post you've made has indicated you genuinely have no idea what I'm talking about. There's nothing wrong with that. But why not just admit it and ask me some questions so I can explain the issues in terms you do understand? You think you're being a clever dick who's going to catch me out and reveal my ignorance, but the reality is it is you revealing your ignorance in every post. You clearly know nothing whatsoever about audio.



How do those sounds get replicated with any degree of accuracy?

They don't. Explosions in movies etc. don't actually sound much like real explosions (for one, they're almost always too slow). They're built up in layers from multiple different recordings.


Have you compared your analysis of this audio with some from recorded demolitions?

No I haven't, and I'm not sure why you think that would prove useful. The question is whether the explosion fits the audio signature of the rest of the video, not whether it sounds like an "actual" explosion or not. It probably is an actual explosion, or more likely multiple explosions layered. The point is it wasn't recorded with that video.


I have to kind of wonder about the professed neutrality of someone who feels the need to digitally analyze a piece of audio that most would not consider remarkable or unusual.

Some consider it remarkable and unusual. That's the entire reason we're discussing it.
It is, for being fake if nothing else. I did it back when I had a lot of spare time and was really involved in researching 9/11 related stuff. It didn't take particularly long, and it was an interesting exercise. That was, of course, back when I was a little naive and thought Conspiracy Theorists were just ignorant, and might learn if you showed them real research. Since then I've realised it's a waste of time. I seldom post here any more. Every now and then this video crops back up. Some people never learn.


Obviously you had some kind of theory or you wouldn't have bothered.

A theory? Well you could tell from listening to the video that there was something "fishy" about the explosion sound, but the reason I analysed it was because someone started a thread, much like this one, asking about the video. While my ears told me the explosion didn't fit with the rest of the audio, I wasn't willing to rely entirely on my own perception, so I did the analysis to get some hard figures. Not only was I right, but I uncovered the wide stereo characteristic which also points to a fake.

I just want to stress that all three of the key characteristics I've mentioned, alone indicates the audio is fake. All three characteristics can be empirically measured. That the audio is fake is a cold scientific fact.


Moreover the claim you're making begs an obvious question, which could further inform your analysis: what event is the "faked explosion" intended to replace? What were the firefighters reacting to, if not that sound?

I have no idea what they're reacting to. The only people who could possibly answer that are the people in the video, the person that recorded it, and whoever added the explosion sound effect.


Secondly, I might be more inclined to believe you if you weren't the only person who is making this claim.

Well in the same original thread an audio engineer here did a similar analysis. I've also seen it done for a few other videos that were found to be faked by conspiracy theorists. Why don't you ask who in this thread believes the explosion was added, like I do?

For what it's worth, I don't believe you for a second. Even if every other person in this thread said the explosion was fake, you'd still cling to your fantasy. That's why I don't engage in 9/11 research any more. It's a waste of my precious time.


If audio analysis is so easy, surely someone else by now would have discovered the same thing you did? It's a pretty widely distributed video and there are a heck of a lot of bedunkers out there. You seem to be the only one who came to these conclusions. Odd.

I came to them first, I believe (at least on these forums). I'm not the only one who thinks that explosion was added to the video. Also, most people are more interested in the bigger picture. You'll note most of the responses have been that even if there is an explosion in the video, it doesn't mean much. That's true, and I agree with it. For all we know, the explosion is replacing an actual explosion recorded at the time. Perhaps the quality of the explosion was so bad (due to those microphone limitations I keep talking about) the documentary filmmakers put their own explosion in to enhance it. That's quite common. Most documentary films that depict WTC2 being hit, for example, add an explosion.

When a piece of evidence is presented there's really two ways to respond. One is to assess the legitimacy of the evidence, the other is to assess it's importance. Most of your "debunkers" have gone with its importance, and rightly concluded that, fake or not, it's just not important. I agree.

I went the other route. The evidence isn't legitimate. It's fake. It has been tampered with. So its importance is moot.
 
That's nice, I don't particularly care what you think. I care about the facts, and what they indicate.





You would be wrong.




Without blowing my own trumpet, I'm pretty sure I know more about audio and video than you do.




I'm not sure you could call the industry standard sound editing program "crappy", but the fact is you can actually determine most of the points I've explained using Windows Sound Wave, and all of them using even the most basic sound-editing software.

The fact that you've even suggested this, despite having my explanations available, speaks very strongly to you not having the faintest clue what I'm actually talking about.




I'm not wrong. I'm 100% right. It's a bizarre notion, I'll give you that (I was surprised), but nonetheless, it's a fact. The explosion on that video was not recorded at the same time as the rest of the noise. I don't know why it was added. I don't even know when, although MikeW has done some research that suggests the explosion was added by the documentary filmmakers, if not earlier (the documentary was assembled from footage gathered from a variety of sources). I'm certainly not willing to claim someone deliberately "faked" an explosion to support a CD claim, because there's no evidence they did. All I have claimed, with reason, is that the explosion was not recorded with the other sound on the video.

If you think it was, please explain each of the three observations I made:

1. Inconsistency in sound peaking levels between explosion and other sounds
2. Inconsistency in explosion dynamic range and other sound dynamic range
3. Inconsistency in stereo signature of explosion and other sounds

Each of those observations is a fact. If you can't explain how they came about from a live recording, the only remaining conclusion is that the explosion and other sound were not recorded together.

Ball's in your court.

If I recall correctly, (though it's been several years ago, and I'm not about to dig through a bazillion threads to check it) someone found a sound effects CD that has a stereo explosion that matched the explosion in the video. Does this ring a bell for anyone else?
 
The explosion is "too loud" ? :)

Yes it's "too loud" in characteristic to the sound channels. Try listening to it on a hifi/hidef stereo system instead of your ****** laptop speakers.


I noticed the same. In my experience, during a fire scene, any explosion heard by firefighters is followed with some type of reaction. Either ducking (natural reaction, considering flying debris could be coming at you) or saying "OH ****" or something along those lines.

The guy on the left side barely reacts to the "explosion", and the guy on the phone mearly turns around. Not exactly the reaction you'd expect.

They don't run or anything, they sit there continuing their phone call and actually group up with 2 other firefighters. I'm no firefighter, but I would expect that something that loud that close would send them running, I sure as hell would be if it was the ACTUAL case.
 
If explosion sounds are notoriously difficult to record with any accuracy, an audio signature for one that was captured accurately would likely not match the rest of the audio for obvious reasons.

Poppycock. The clarity of the blast sound sets it apart from the audio in the rest of the video.

Just curious, here. Why do we never see you pipe up when 9/11 bedunkers insist that the absence of signature explosion sounds in most WTC videos means that there were no explosions? Bedunkers always seem to want it both ways. Both the presence of explosion sounds and the absence of them indicate, to them, no explosions.

Most of us, those who are sane, anyway, realize that there are going to be explosions. You cannot have that many vehicle fires at one time without there being explosions. Both Deshore and Androvic describe some of them, which twoofers like idiot boy MacQueen take to support bomb theory, but which anybody with a room-temp IQ recognizes as cars cooking off.

It is not the explosions that we deny, or things that sound like explosions. We assert, from sound scientific survey of videos and eyewitness accounts that none of them indicate the use of high explosives.

So recordings of explosion sounds in controlled demolitions are mixed live at the time as well?

Of course they are.

How do those sounds get replicated with any degree of accuracy?

Recording devices are generally placed far enough away from the blast sites that the blast does not overwhelm the microphone. Generally, the blasts are clearly audible, but the noise of collapse is far less noticable. In the videos of the WTC collapses, the collapse noises are from close-up, but no explosions consistant with demolitions are heard.



I have to kind of wonder about the professed neutrality of someone who feels the need to digitally analyze a piece of audio that most would not consider remarkable or unusual.

Actually, those of us with the slightest clue about explosives and emergency services operation find the video quite remarkable for the inconsistancy between the noise and the manner in which most of the people around the phone failed to react.

Moreover the claim you're making begs an obvious question, which could further inform your analysis: what event is the "faked explosion" intended to replace?
None.

What were the firefighters reacting to, if not that sound?
The approach of an authority figure who looked annoyed that they were stranding around in a danger zone.

Secondly, I might be more inclined to believe you if you weren't the only person who is making this claim. If audio analysis is so easy, surely someone else by now would have discovered the same thing you did? It's a pretty widely distributed video and there are a heck of a lot of bedunkers out there. You seem to be the only one who came to these conclusions. Odd.

You don't even need to do anything more complex than to watch and listen to the video. Those who have any clue what is going on in that time frame dismiss it as non-evidentiary.
 
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...
You cannot have that many vehicle fires at one time without there being explosions.
...

Just yesterday, there was a news item on yellow TV: A motorist from the Netherlands, driving on the German autobahn, was alerted by other motorists that his fine Porsche was burning. He pulled over, and got out. By coincidence, a film crew came by and stopped. By the time they started rolling film, the Porsche was fully invoved in fire.

And then it happened: It went BOOM!
No idea what went boom. Fuel? The airbag? A fire distinguisher maybe? Doesn't matter. Obviously, something in a Porsche can go BOOM when it burns.

Coincidentally, when the fire was out, the roof, hood and parts of the doors hat melted away. So much for "fuel can't melt steel" (of course, I am not talking about steel).



Coincidentally, later the same day, I zapped by a documentary on the last days of the war in Berlin. They just showed a house that was burning. From a window on the second floor up (that's counting the German way: Ground floor - 1st floor - 2nd floor...) there poured a continuing stream of glowing stuff. Looked quite like that stream from a corner of WTC2 minutes before it collapsed that we talk about here so often. Except that this time I was more sure it was mostly solid stuff (embers).
 
"....Using the sun position calculator on the Naval Observatory website, we can tell when the sun was in that approximate position on 9/11/2001 in NYC: ..."

:D

Bedunker super google sleuthers! This is hilarious.
Ergo? That's the basic principle of a sundial he's using. A device used for thousands of years, which you may have learned about in junior high or elementary school. Also, the USNO is one of the oldest scientific agencies in the US, not some random guy's webpage. Also also, a lot of truthers are "Youtube Super-Sleuthers"; they see a few minutes of video and that somehow makes them the equal of forensic experts and entire investigative agencies.
 
"....Using the sun position calculator on the Naval Observatory website, we can tell when the sun was in that approximate position on 9/11/2001 in NYC: ..."

:D

Bedunker super google sleuthers! This is hilarious.


Ummm. That is the same data that is published in the Nautical Almanac that most of the navies of the world have used for celestial navigation for the last several hundred years.
 
Not normally. Every CD explosion I've ever heard recorded up reasonably close peaked the microphone.

I didn't ask about the ones you recorded. I asked if you have compared the audio you're claiming is fake to audio of CD explosions from other publicly available videos. Because in those videos, while it may not be replicating the sound with 100% integrity, it's pretty easy to tell what we're hearing, wouldn't you agree? What happens to the signatures in those ones? How do they compare? That's what I'm asking.


No I haven't, and I'm ot sure why you think that would prove useful. The question is whether the explosion fits the audio signature of the rest of the video, not whether it sounds like an "actual" explosion or not. It probably is an actual explosion, or more likely multiple explosions layered.


See above. Some screen caps of the signature in question would illustrate your point, and also provide a point of comparison.

But never mind, because

The higher dB sound does not clip. Do you even know what "clipping" and "peaking" mean in relation to audio? I am guessing not. The explosion sound is not clipped at all. This means the microphone didn't peak at all during recording. Yet a lower dB sound in the same video (the people speaking) is clipped. It's quite simple. If the dialogue peaks, and the explosion happened at the same time, the explosion has to peak too.

And given that this footage was part of a documentary, you would find it odd that that segment may have been engineered for broadcast?

Oh, wait. You wouldn't find that odd at all:

Perhaps the quality of the explosion was so bad (due to those microphone limitations I keep talking about) the documentary filmmakers put their own explosion in to enhance it. That's quite common.

:rolleyes:
 
And given that this footage was part of a documentary, you would find it odd that that segment may have been engineered for broadcast?
So you admit the explosion is faked now?
 
ergo; said:
Just curious, here. Why do we never see you pipe up when 9/11 bedunkers insist that the absence of signature explosion sounds in most WTC videos means that there were no explosions? Bedunkers always seem to want it both ways. Both the presence of explosion sounds and the absence of them indicate, to them, no explosions.

Explosives
 
Just curious now. Here is what Audacity renders.

The explosion duration is in the darkened area.

If I understand correctly, Gumboot is saying that the central, pale blue shaded area should be peaking towards the top and bottom of its boundaries, but it's been normalized, or something.

explopo.jpg



Gumboot's other points...

2. The dynamic range of the explosion greatly exceeds that of the sound in the rest of the video. This is easy to spot because explosions have quite a distinct audio signature that makes them notoriously difficult to capture on low quality microphones due to the limit in dynamic range....

3. The explosion has a wider stereo signature than the other sound in the video. In simple terms, this means there's a noticeable difference between the left and right channels of the explosion. This is a tell-tale indicator that the sound in question has been created in a studio and not recorded in the field. Wide or narrow stereo sound is literally dependent on how far apart the two microphones are (just as 3D depth is created by altering the separation between two cameras used to capture 3D images). When utilising a microphone mounted on a camera, even if it is a discreet stereo microphone (i.e. actually two separate microphones) they are located almost in the same place, and the difference in sound is negligible.


...are not obvious to me in this image, also when comparing it to audio from the Landmark demolition below. Perhaps he can explain.

landmark.jpg
 
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Just curious now. Here is what Audacity renders.

The explosion duration is in the darkened area.

If I understand correctly, Gumboot is saying that the central, pale blue shaded area should be peaking towards the top and bottom of its boundaries, but it's been normalized, or something.

[qimg]http://i889.photobucket.com/albums/ac91/jaswinder_bucket/WTC/explopo.jpg?t=1312841381[/qimg]


Gumboot's other points...




...are not obvious to me in this image, also when comparing it to audio from the Landmark demolition below. Perhaps he can explain.

[qimg]http://i889.photobucket.com/albums/ac91/jaswinder_bucket/WTC/landmark.jpg?t=1312841587[/qimg]



I think someone else has already mentioned that the particular version of this video in the OP is a mono-stereo mix and not the same as the earlier versions of this video which where around on YouTube back in 2005 or whenever this was an in theory.
 
I didn't ask about the ones you recorded.

I haven't talked about them.



I asked if you have compared the audio you're claiming is fake to audio of CD explosions from other publicly available videos.

I understand exactly what you're asking.



Because in those videos, while it may not be replicating the sound with 100% integrity, it's pretty easy to tell what we're hearing, wouldn't you agree?

Yes...


What happens to the signatures in those ones?

They clip, as I said.


How do they compare? That's what I'm asking.

The fact that you still keep repeating this notion that comparing other live explosions with the video in question might somehow provide useful information demonstrates that still, after all these posts, you don't understand my original points.



See above. Some screen caps of the signature in question would illustrate your point, and also provide a point of comparison.

That would take far more time and effort on my part than I feel you are worth. Sorry. I am not going to jump through hoops for your benefit. I honestly do not care at all if you believe me or not.




And given that this footage was part of a documentary, you would find it odd that that segment may have been engineered for broadcast?

Oh, wait. You wouldn't find that odd at all:

:rolleyes:

Like I said, it's very, very, very common. I am not offering it as what I honestly believe happened. I have no idea why that explosion was added to that video, nor who added it. I just know it has been added.
 

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