Recordings of background atmospheres and incidental noises from all over London. Many form part of a sound grid series recorded at evenly-spaced points across the city, each marking the centre of a square on the map below.
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Above: graphic based on a daytime satellite image courtesy of the Image Science and Analysis Laboratory, NASA Johnson Space Center. Each red grid square is 2.5 miles or 4 kilometers across.
File name: TQ 0458 7688
Grid square: Longford, Heathrow
Duration: 1:00
Recorded by: IM Rawes
Recording date: 30 May 2009
Time of day: 11.20am
Location: OS grid reference TQ 0458 7688, a water-filled gravel pit south of the Colnebrook bypass. The point was unreachable, and the recording was made from the Colne Valley Greenway footpath, about 300 yards due north.
Description: An aeroplane passes a few hundred feet up on its way to land at Heathrow. Continuous sound of jet engines from the airport, traffic noise from the Colnebrook bypass, and faint birdsong.
Technical guff: Head-worn stereo. 2 x Shure WL-183 mics. Edirol R09-HR digital recorder.
Additional notes: None.
Sound map recordings fall into two kinds, shown by the filenames they're given.
A sound grid recording has a filename beginning with the letters 'TQ', followed by eight digits. These are the Ordnance Survey co-ordinates for where the recording ought to be made. Each is part of a regularly-spaced series of recordings covering London. More about them, including graphics showing the resulting city-wide patterns of sounds, can be found on this page.
Other recordings have more descriptive filenames and these are simply of curious or distinctive sounds heard in different places.