Until the middle of the 19th century, there was no recorded sound. A performance had to be seen to be heard, with no record left beyond the audience's recollections. Much of music was forgotten by time.

Then, in 1860, Édouard-Léon Scott de Martinville captured the first sounds as waveforms. Still, the idea of actually hearing those sounds again did not seem possible. Instead, he imagined people would read waveforms like a new language, and hear the performances imaginatively in their "mind's ears."

A Brief History of the Waveform follows the evolution of sound recorded as a wave, from Scott de Martinville to SoundCloud.

Featuring the voices of: Patrick Feaster, sound media historian; Karen Topp, senior lecturer in physics, Bowdoin College; Jonathan Sterne, sound historian, McGill University; Carlene Stephens, curator, National Museum of American History; Eric Wahlforss, co-founder and CTO, SoundCloud.

A Brief History of the Waveform

48Hz

Multi-channel installation
Presented at Platform Arts, Belfast
28 – 30 March 2014

The sound installation attempts to unveil and present to the listener the inner world hidden in the drone of the telecommunication boxes.

Each drone, with a fundamental frequency close to 48Hz, is unique and presents different sonic characteristics. For this installation I have selected two of the boxes as the single material for the composition: Sunnyside Street and Lockview Road.

The field recordings were analyzed in order to determine the key frequencies from each drone. By applying narrow band-pass filters it was possible to subtract the ambient noise and isolate the drone.

The 3-part composition progresses from a more “objective”perspective towards a more “subjective” one. Firstly it introduces the original recordings. Then, each individual frequency composing the drone is presented through a partially random selection and accumulation algorithm. Finally, the same material is played at different octaves with phase-shifted envelopes.

The installation generates a new version of the composition at each playback, creating a slightly different listening experience each time. The space is designed to invite the listeners to lie down on the floor and fully immerse themselves in the sonic experience.
X Marks the Spot
Matilde Meireles

‘X Marks the Spot’ is a web-archive, a slowly growing and playful map of Belfast assembled by tagging specific telecommunication boxes, only those emitting a drone (continuous hum).

The tagging process aims to engage people with the space around them, to understand how sound shapes our experience of the city.

By inviting other people to participate in the process, this activity is designed to spread throughout Belfast exploring alternative ways to relate with the urban environment and connect from A to B.

‘X Marks the Spot’ is also a curatorial project. Three artists were invited to explore different aspects and processes within the project. Miguel Negrão will show the first result, ‘48Hz’.

‘48Hz’ is an immersive imaginary soundscape of Belfast. A multi-channel sound installation that uses field recordings from ‘X Marks the Spot’ as the ground material for a drone composition.

// ‘X Marks the Spot’ was constructed using a fully responsive web-layout allowing it to function on all browsers and mobile devices – enabling you to augment your experience of each tagged location.

http://xmsbelfast.com

Event partners
PLACE, Sonic Arts Research Centre and Recomposing the City

48Hz @ Platform Arts Belfast

Courtesty of Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS)aboard NASA’s Van Allen Probes team at the University of Iowa

Chorus Radio Waves within Earth's Atmosphere

Visions in meditation for Stan Brakhage.
Live at CRATER LAB (Barcelona). Ciclo Ultrasons.
Modular Synth in just intonation
2017/11/28

http://crater-lab.org/ciclo-ultrasons-visions-in-meditation-para-stan-brakhage/

Live at CRATER LAB (Barcelona) 17/10/28

15 March, 6 pm, temperature about 0 degrees of Celsius. The last pieces of tiny ice on the bank of water channel.
The first half of the recording made with contact microphones, the second half - as it sounds in the air. Roaring waterfall not so far...

The last ice: two perspectives

Contact microphones recording. Strapping tape outstretched on the meadow and making "helicopter-like" sound in the wind.

Strapping tape in the wind

immersive ambisonic multichannel installation and live performance
ongoing project series, duration and dimensions variable

entangled explores the nonhuman worlds of the Amazon rainforest, focusing on the fascinating complexity of the continuous sonic flow created by insects, birds, amphibians, mammals, reptiles, fish, plant species, soil, water and the weather.
The work facilitates a profound, active and sustained listening experience, cultivating intimate sensory encounters in which affectivity is favoured over signification and representation. The listener-participants find themselves in almost total darkness, without images or objects, within a sound field generated by a multichannel sound system.
The work is a durational composition made from several hundred hours of environmental sound materials recorded in terra firme and flooded forest (várzea) ecosystems within the territories of the Amanã and Mamirauá reserves in the central Brazilian Amazon. The fieldwork was carried out over two months in the dry season of 2015, in collaboration with local inhabitants.
entangled is experienced as a series of immersive installations and live performance events, featuring variable sonic materials and extended durations. 

The project uses higher-order Ambisonics. This audio is decoded to stereo (headphone listening encouraged).

unreleased

entangled (excerpts for headphone listening)

site-specific sound installation
8-channel audio, custom speakers, Max/MSP 
pablo sanz & juan cantizzani

30 June – 7 July 2012 | 24-hour
Tunnel Lekstraat-Schenkkade, Binckhorst, The Hague

A shifting aural topography based on the daily rhythms and the resonant architecture of a pedestrian and cyclist tunnel. The sound changes over a twenty-four hours cycle, interacting with the existing soundscape and the movements of passersby. The result is an added aural layer which is perceived as not having physical origin and belong to the site. Exploring the threshold of perception, the work aims to induce a switch of focus, a momentary lapse in the urban transit experience.

The project draws inspiration from the notion of ‘Rhythmanalisis’ proposed by Henri Lefebvre, on which he outlined a method for analyzing the rhythms of urban spaces and their effects on the inhabitants of those spaces. The spatial behavior of the sound and the overall cyclical structure are based on the rhythms of the site, accompanying, contrasting and extending them.

www.pablosanz.info/transient-lapse/

transient lapse (Tunnel Lekstraat-Schenkkade, The Hague) | installation excerpts

pablo sanz

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