Slim chance, but was on the way to work and public radio had an editorial. Asked "do you know what sound this is"
Recognized immediately someone was recording an impulse reverb file with an incredible trail.
 
Was a gun shot inside WWII oil supply tanks, in Ireland I think. Some guy wrote a book on unique sounds to check out in the world while touring.
 
Evidently these underground metal tanks are "the size of cathedrals", can only be accessed by climbing through the oil pipes to get inside the chamber. Musicians go inside to play and record. Claimed to have the longest reverb trails we know of on earth, up to 2 minutes depending on the frequency. The examples were amazing and there are recorded impulse files.
 
Curious if anyone knows about these. If someone was making impulse files, they have to be available somewhere. Any clues or bits of information appreciated so I (we) can track them down. Thanks.
 
John

Found this. I'm on track now...
 
http://www.dailymail.co.u...rlds-longest-echo.html

Praises to Allah and the celestial virgins!!
 
Scroll down the link and the gunshot is on a sound clip. Probably mono and whatever mp3 resolution, but can be captured and loaded into the likes of Reverberate.
 
John

Altiverb has a few that were done in various places; prisons, tanks...

When I read gas tanks I immediately thought of this vid-
 
http://www.youtube.com/watch?v=9AsIplUJbdE&feature=share&list=PL6uqON-thyrbF_7Ak2Hu0Zw_he3vBIo59
 
http://thecreatorsproject.vice.com/en_us

Success. Knew it had to be out there somewhere. Check out this link...
 
http://www.freesound.org/people/acs272/packs/13598/
 
John

Interesting video...
 
When I was a kid up in Alaska, there were two super giant oil storage units long empty. They were on the coast and we would throw rocks at them to listen to the seemingly endless ring.
 
The earthquale of '63 shredded us up quite badly. After the tsunami hit, a lot of coastal villages were just gone without a trace. Nobody knew about tsunamis so unknown number of lives lost. The other things that disappeared never to be found were the two giant steel oil containers.

I've got zillions of impulse files I've collected since Perfect Space first came out.  Several Taj Mahal, that I think are just amazing.
 
I'll have to check this later, as heading out the door now.
 
this is great!

Captured the sound and put it on swoopshare at this link. 6.2 meg download cut after around 35 sec because it was just too long. Captures a slight echo effect of the area as well.  Hard to believe that this is a real impulse.
 
http://www.swoopshare.com/file/8e5d674fcfbae932cf81278d3e319787/Scotland.wav.html
 
John

There is a water cistern near here that's been used in a similar fashion. Concerts have been played inside it, although the audience had to sit topside on the lawn because there isn't enough oxygen down there for whole a bunch of people, and access is through a small opening an a 14-foot ladder. There have been as many as 86 musicians performing inside the cistern.
 
Reverb time is reportedly 45 seconds. Recordings have been made of jam sessions where musicians play or sing harmonies to the previous note, like you might do with a looper.
 
http://centrum.org/dan-harpole-cistern-at-fort-worden-state-park/
 
http://en.wikipedia.org/wiki/Fort_Worden
 
 
https://www.youtube.com/playlist?list=PLD7ED4DBC53B4300B
 
http://forum.cakewalk.com/Acoustical-curiosity-Fort-Worden-cistern-m2815792.aspx
 
http://valhalladsp.wordpress.com/2010/05/25/ambient-reverb-no-electronics-required-the-dan-harpole-cistern-at-fort-worden/
 
http://www.seattlepi.com/news/article/Even-after-the-performers-stop-the-music-will-1282855.php
 
 

I'd recorded in a large ceramic bathroom in Turkey and thought that was cool. My wish list would be able to drag an acoustic guitar around the world to some of these places. Looks like Bit is just north of the river from me so might be able to do the cistern.
 
My daughter gave me a collection of DVD's a few years ago from the "Planet Earth" series. One was on newly discovered underground caverns in the eastern US with incredible acoustics and some that resonate and vibrate like glass on their own from energies deep in the earth. Can only dream for now.
 
Been playing with the Scotland oil drum impulse in Reverberate. The file itself is too long to be of nuch practical use, but manipulating the length, decay etc comes up with some excellent effects. Only wish the original file was stereo.
 
John