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 Forum index » Archive » Archive: The Haunted Apiary (Let Op!) » The Haunted Apiary (Let Op!): General/Updates
[AUDIO ANALYSIS] Sound clues from goodbye.wav
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scibtag
Boot

Joined: 29 Aug 2004
Posts: 28

[AUDIO ANALYSIS] Sound clues from goodbye.wav

I did some analysis on goodbye.wav and the others from recipe3.html and found some interesting things. Not sure how much of this has been posted before, but I tried searching and couldn't find it.

The first thing I noticed was a clock ticking in the background. You can hear this even better if you shift your balance all the way to the right. It's regular throughout all the clips, and continues in the break in the conversation between the old man and Maria.

The second thing was some light piano music playing in the background. This also continues while the old man is on hold and the military officers are speaking. This is very similar to the piano music playing in the restaraunt in our_hoodlums.wav. I can't confirm that they are the same song, however the style is extremely similar and (OOG) I bet they both came from the same artist.

The third comes from a method normally used to remove vocals from a song. When you subtract one audio channel from another it removes the sounds coming from the center.
In the recipe3 wavs this cancel's out the old man, maria, and the high ranking military officer. The lower ranking officer's voice remains because he is being portrayed as next to the recording device.

This lends a lot of weight to the theory that the old man is an impersonation by the high ranking officer. It also, I believe, disproves the possibility that the low ranking officer could be responsible for the call. However, the impersonation remains speculation because other possibilities still exist.

I attached the cleaned version of goodbye.wav onto this. You can hear how the other voices were eliminated, and it's easier to hear the music and the clock in this version. I used Audacity to do the audio editing.

PostPosted: Thu Sep 02, 2004 10:23 pm
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Daffy889
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Joined: 25 Aug 2004
Posts: 493
Location: South Australia

Of course, if there were a third man already in the room doing the "old man" voice, then he could also be seated in the center. That would explain why there are only footsteps after the knock, whereas if the old man were the deep voiced officer there should have been footsteps before that.

Oh, and don't say we wouldn't have heard footsteps if it was being picked up by the chatter unit, as in one of the other clips we can hear sirens through Hiro's chatter when they are outside. Though I think whatever we are hearing it through is better quality than the chatter stuff we have heard anyway.

Here are some diagrams of possible layouts if there were three men.

PostPosted: Thu Sep 02, 2004 10:47 pm
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Corngood
Boot

Joined: 26 Aug 2004
Posts: 24

Wow, audio analysis AND visio charts, this is some thread.

PostPosted: Thu Sep 02, 2004 10:58 pm
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Zemat
Boot

Joined: 30 Aug 2004
Posts: 54

Corngood wrote:
Wow, audio analysis AND visio charts, this is some thread.


One good thing to remember is that all recordings are being made trough chatters. So the voices that sound stronger are the ones that belong to the chatter user. If the old man was being impersonated by a third person the voice would have sound a little less strong that the high ranking officer. And we wouldn't be listening to the receptionist at all (unless chatters have a speakerphone option).
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PostPosted: Thu Sep 02, 2004 11:06 pm
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SecondSundodger
Boot

Joined: 27 Aug 2004
Posts: 50
Location: Jet City

Daffy889 wrote:
Of course, if there were a third man already in the room doing the "old man" voice, then he could also be seated in the center. That would explain why there are only footsteps after the knock, whereas if the old man were the deep voiced officer there should have been footsteps before that.


I have postulated elsewhere that a possible reason you didn't hear footsteps prior to the door opening is because the room the Old Man/Officer entered from was carpeted, which cushioned his steps enough that the recording device wouldn't pick it up.

My post about that can be found here: http://forums.unfiction.com/forums/viewtopic.php?p=65784#65784

Edit to note that I just realized you have indeed seen that post already and heard my spec (because it was you that replied to it, I see now). But oh well, guess you get to hear me out again.
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PostPosted: Thu Sep 02, 2004 11:51 pm
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Daffy889
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Joined: 25 Aug 2004
Posts: 493
Location: South Australia

Yeah, I keep forgetting about that carpet (or rubber flooring). The thing is, the stereo positioning of the clock doesn't move, which makes me think that whatever is picking up the sound isn't moving.

Also, about the strength of the voices, see my layout1 diagram. If the 'speakerphone' and recorder were in the middle of the table (where I have written "we are listening from here"), then with that layout the voices would sound equally strong. We're not listening in surround sound here, so a stereo mic placed left to right in the middle of that table would pick up what we hear in the file.

PostPosted: Sat Sep 04, 2004 3:39 am
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scibtag
Boot

Joined: 29 Aug 2004
Posts: 28

Quote:
We're not listening in surround sound here, so a stereo mic placed left to right in the middle of that table would pick up what we hear in the file.

While this is almost certainly true, it's still an assumption. We don't know what kind of quality these clips were recorded in. We only know that they are being provided to us as stereo sound. This could just be because stereo is the highest quality format thats widely used. I'm not sure of any portable music format that does surround, but it's entirely possible that one will be invented and widely used in the time these clips are made. The mics being used are obviously more complex than something you'd find on a normal speakerphone, and multiple recording sources are a possibility.

I don't know how to do visio charts, so I'll have to use ascii art.
A * is where a microphone would be and 1 and 2 are the hypothetical old man and high ranking military official.
Code:

------------------------------
| *                          *|
|                             |
|              1              |
|                             |
|              2              |
|                             |
| *                          *|
-------------------------------

If it was converted to stereo along the up-down axis, we would hear what we hear in the clips.

That being said this is probably overanalyzing the matter, but it's always good to check your assumptions.

PostPosted: Sat Sep 04, 2004 4:59 am
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