The IRs can be downloaded here: https://freesound.org/people/acs272/packs/13598/

A great ear cleansing exercise and I am enjoying the book too. Thank you. HEALTH WARNING being of a certain age I had increased my volume setting to levels I don't usually listen at. Within 2 secs of the echo finishing I had Pete Swanson in my headphones at seriously dangerous levels. Listeners beware.

using this sound file as an impulse response for convolution vst plugins, guitars sound truly amazing run through this echo!

Trevor Cox, Professor of Acoustic Engineering at the University of Salford and author of Sonic Wonderland, has discovered the world record for the ‘Longest Echo’. The 1970 Guinness Book of Records is the last claim for the ‘longest echo’, when the solid-bronze doors of the Hamilton Mausoleum in Scotland slammed shut, it took 15 seconds for the sound to die away to silence. In researching his new book Sonic Wonderland: A Scientific Odyssey of Sound Trevor Cox discovered a place where the sound echoes around for a full minute longer, smashing the previous record.

Trevor Cox travelled to the oil storage complex at Inchindown, near Invergordon, Scotland. These reservoirs supplied the naval anchorage in the Cromarty Firth at the bottom of the hill. The tanks were constructed in great secrecy amid concerns about the strengthening of Germany’s armed forces during the 1930s and the threat posed by long-range bombers, which is why the tanks were dug deep into the hillside. The vast complex took three years to complete. His guide was Allan Kilpatrick, an archaeological investigator for the Royal Commission on the Ancient and Historical Monuments of Scotland.

Trevor had to enter the tank through one of the 18 inch diameter oil pipes because there are no doors. The tank could hold 25.5 million litres of fuel and has walls 45cm thick. The space is about twice the length of a football pitch, 9m wide and 13.5 metres high.

Allan fired a pistol loaded with blanks about a third of the way into the storage tank, and Trevor recorded the response picked up by the microphones about a third of the way from the far end. This is a standard technique used in concert hall acoustics; old black-and-white photographs show a gun being fired on the stage of the Royal Festival Hall when they tested the acoustics back in the 1950s.

Sonic Wonderland - World's Longest Echo

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Widerstehe doch der Sünde Remixes EP released 18th September 2015 on NCLS/@Because Music. 
Limited physical copies available: po.st/WDDSVinyl

Original version taken from my solo debut Album "Contrepoint" po.st/Contrepoint

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Widerstehe Doch Der Sünde (Lapalux Remix)

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This is the full version of Underwater Lament, taken from The Alias Sessions double album.

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Sonic Wonderland by Trevor Cox. An original and compelling tour of the world's most amazing acoustic phenomena and a passionate plea for a deeper appreciation of and respect for our shared sonic landscapes.

Sonic Wonderland - World's Longest Echo

sonicwonderland

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