An interactive sound map of room-tone recordings made inside a selection of WWII ‘pillbox’ defences located around Folkestone town. Created in response to the Sound Diaries 2024 Open Call supported by the Sonic Art Research Unit (SARU), Oxford Brookes University.

These reinforced concrete chambers, commissioned in 1940 to defend against invasion, remain embedded in the landscape, obsolete but perhaps still sentinel. The field recordings explore the variation in their design and acoustic character, while capturing the contemporary acoustic environment from their militaristic vantage point.

Holywell Coombe (Sweeping Filter)

This piece consists of a field-recording made in Holywell Coombe, an area of countryside on the outskirts of Folkestone town which is part of the Folkestone to Etchinghill Escarpment SSSI.

A steadily oscillating band-pass filter explores the variety and interplay of sounds concurrent in the landscape (from aircraft to insects) as it passes through the frequencies within which each sound operates.
A similar use of this technique can be heard in the previous work Green Language.

Holywell Coombe (Sweeping Filter) was broadcast on Radiophrenia, Glasgow CCA, September 2023.

Great Orme Copper Mine (Auto Filter)

This piece uses a short field recording made at the Bronze Age copper mines at Great Orme, Llandudno, North Wales. As the original recording repeats, it is side-chained to a series of automated filters of varying sensitivity, transforming the sound of dripping from the limestone tunnels into an array of synthetic voices. On the third repetition the source audio is muted, leaving just the synthetic signals.

Broadcast on Radiophrenia, Glasgow CCA, September 2023.


Lithoscapes is a library of acoustical Impulse Response recordings made at a number of important geological sites found within the Kent Downs AONB. At each location a sound recording was made of a balloon being popped. This sonic information is processed to create a reverb effect, encapsulating the acoustic space, so that it can be reproduced when applied to other sounds. The web app allows the user to compose patterns of sound and play them into their chosen lithoscape.

*Headphones recommended

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Imogen Holst’s Kitchen / Imogen Holst’s Kitchen In Retrograde

A room tone recording made in 2019 while on artist residency at Church Walk, Aldeburgh, former home of Imogen Holst – daughter of Gustav Holst, composer, conductor, arranger, musicologist, and assistant to Benjamin Britten. The modest kitchen, where Imogen could famously ‘only cook eggs’, is set within a 1960s modernist bungalow designed by H.T. Cadbury-Brown.

Continue reading Imogen Holst’s Kitchen / Imogen Holst’s Kitchen In Retrograde