Hamiton Mausoleum

Title: Hamiton Mausoleum
Category: Mausoleum Capture Date: 22nd January 2005
Hamilton Mausoleum - Exterior
Hamilton Mausoleum Interior - Domed Ceiling
Hamilton Mausoleum Interior - Setup
Construction on the Hamilton Mausoleum, Hamilton, Scotland, built for the 10th Duke of Hamilton, started in 1842 and was completed in 1858.  It is constructed of marble and sandstone and is surmounted by a dome 36m in height, with two main spaces, a crypt in the lower section, and a chapel that was supposed to be used for worship.  However the construction materials, size, shape and dimensions of the latter result in a complex, dense and very long reverberation, and hence render it almost useless for speech presentation.  In fact the Guinness Book of World Records claims that the Hamilton Mausoleum has the longest “echo” of any building, recorded on 27 May 1994 as taking 15s for the sound of the reverberation caused by slamming one of the main doors to die away to nothing.  The space is now often used by recording musicians for its unique acoustic properties.  The interior of Hamilton Mausoleum is approximately octagonal in plan, with a diameter of 18 m.  Each side of the octagon is either a plane wall or a further semicircular alcove.  The results presented below having the microphone assembly in the centre and the source placed to one side, just outside one of the alcoves, giving a source-receiver distance of 4.8 m.
Location: Hamilton, Scotland, UK Size (Approx): 9000m3
Source: Log. Swept Sine; 20-22k Hz; 15s long Input: Genelec S30D
Source Location: Centre of mausoleum main chamber Mic Location: Edge of chamber at entrance to alcove
Source-Microphone Distance: 4.8m
ISO 3382 - T30:
Freq (Hz) 31.5 63 125 250 500 1k 2k 4k 8k 16k
T30 (s) 24.3 20.5 18.7 15.3 12.4 9.32 6.06 3.50 1.49 0.62
Microphone: Soundfield SPS-422B
B-format: W and X Channels
B-format: Y and Z Channels
Microphone: ORTF Neumann SKM-140
Stereo - ORTF
Links and Resources:

Hamilton Palace – A virtual reconstruction
Longest Lasting Echo, Guinness World Records, 2004, 2005.

Submitted by damian on 24 November, 2006 - 10:43.