SF Gravelator 91L

As mentioned here from time to time, I represent one third of the experimental collective DEMILIT. We are a group taking walks, recording sounds, and making connections between militarized spaces and the everyday landscape. Last year we were commissioned by Deutchlandradio Kultur to produce a radio piece on their "Newcomer Werkstatt" program, which aired in Berlin at midnight, June 24, 2011.

As DEMILIT likes to do when presented with an opportunity, we take a walk. With a plethora of former military landscapes to explore here in the Bay Area, we set our sights on Angel Island. The island has a long history as a militarized island, beginning as an Army Post in the Civil War and culminating as a strategic link in a necklace of missile defense silos around the Bay Area in the 1960s. Angel is also notoriously known as an immigrant detention and quarantine island. [More history] What DEMILIT sought to accomplish on our walk, and in the ensuing soundscape presented below, was a means of measuring the spaces embedded in the island, the spaces which cannot be seen but which can be heard.

SF-91L is the name of the abandoned Nike Missile station on Angel Island in San Francisco Bay where we recorded the sounds for this piece. Gravelator refers to the simultaneous process of building up and eroding away the island. We displaced the island's own material to construct a second island, an imaginary island, which is encapsulated in the sound.

In a related fashion, the military severed the island’s crown in order to install the radar system for the missiles. The missiles were made obsolete not long after it was finished and was decommissioned. Decades later, the Gravelator is a means of awakening the sequestered spaces of the silo. Listen:

I call it a "chronoscape" -- between landscape and soundscape, a work of sound both on the geographic scale and on the time scale.  Though the piece has a finite boundary in time, it is intended as an aural window onto an oceanic sonic process.  In a similar fashion the work appears to have a finite geographic boundary; however, an island is not a separate piece of land but a promontory of land which happens to rise above the water level.  There is a continuity in both time and geography which reflects the underlying and pervasive process of militarization which DEMILIT seeks to expose in our work.
More from DEMILIT's tumblr feed: http://demilit.tumblr.com/SFG

SF Lunchwalk: Attack and Decay

Four Recent Lunchwalks

Attack and Decay are technical terms known to sound editors and synth musicians, but the concept is also intrinsic to urban walking.  "Attack" is the initial rise of a particular sound and "Decay" is the falling away of the sound from its peak to a normal or "sustained" volume.   Doors open and the clamor of a restaurant rushes out (attack); someone walks in, shutting the door behind them (decay) but listening closely, the sound of the restaurant remains.

If we think of the city as an infinite sound library, the library is perused by walking through it.  Sounds rise and fall and blend together in the great mixing chamber which is the street.  I am interested in the ability of the city to edit its own sound.  The sound-makers engage in the space of the street, all competing to vibrate air molecules.  Air is resilient; like a spring, it receives the initial burst of sound energy and then recoils (decays) until the sound disappears.

Since my last post with sound, I have recorded four hours of sound from four lunch-hour walks, continuing this series where I take a walk through the city instead of eating lunch.  Listening back through the sound recordings, I am pulled in two directions.  One, I have ideas to snip up the recording and reconstruct the walk as an edited soundscape.  The other direction is to isolate only certain moments where it appears as though the city has done the mixing for me.  This latter case is explored in the following track.  Listen:



The track is unedited.  It is simply what I (or the microphones) heard over a 2 minute time-span, using elements of the city (doors cracked open, hills, different sized streets) to "edit" the sound.

SF Lunchwalk: Smokestack

Walking every week, with every chance I get.  My feet vault me out of a sedentary habit (we are what we repeatedly do) into the unique opportunity of an urban walk, latent with unexpected encounters.  Encounters, such as the sight of this smokestack somewhere north of the lunch hour ground zero.  I marvel at its unlikely location, amid the housing and workplaces.  Surely it cannot still be in use.  Do its neighbors consider it a historic resource, a neighborhood landmark?  What if it is in use, but for a use not originally intended...

The smokestack is a non sequitur, a rather large and prominent form nestled within a residential, low-rise neighborhood.  Surely, some research would tell its story.  But the point is not to know where this smokestack came from or its historical use.  The lunchwalker on the go is all eyes and ears to the sidewalk unfolding beneath the feet; no time to research on a smartphone.  Even the excuse of wanting to just "be there" aside, there is more reason to disregard the histories of structures and spaces along the walk: the forms of the city are opened to fresh interpretation.

Ceci n'est pas un smokestack.  It is a vent for a vast subterranean vault.  A wind pipe for a geological organ.  An observation post to collect ambient neighborhood sound.  Let the city try and preserve all of its artifacts.  I can create and destroy them at will.

The lunchwalker embeds a set of desires unto a set of inert objects.  The set of desires is not alien to the walking environment, not fabricated beforehand, but generated along the walk, activated by the sounds present and alive there.

Do not walk to see what the city is.  Walk to see what the city can be.  Walk, to make the city anew.

SF Lunchwalk: Forty-three Ambient Slices of the City

Why even bother with the names of streets?  In a world of sound, the names of streets ring silent.  They are dwarfed by the din of traffic, overwhelmed by thousands of diffuse sounds from the city hulking above.  Market Street, for instance, beckons to be renamed every time I walk out onto it.  My feet are willing to forget, but my head still wants to know: where am I going today?

East.  The Lunchwalker needs not the guidance of familiar street names.  It's not as though these walks are to be repeated.  Nor could they be.  Tracing the footsteps of a previous day's walk is not possible.  (Although that would make a fascinating walk to attempt to do so, even memorizing the sounds as though scripted by iambic pentameter, and to recite and overlay the previous day's walk upon a new day's walk.)  The soundtrack on a given day, at the same time and with the same route, will capriciously yield an entirely different experience.  So I walk east, and I could walk east every day and still find new things to hear, new worlds of sound to discover even though the world we see appears much the same.

What is that funny thing about an urban walk which enables the feeling: "I've walked here many times and yet I've never seen that before."?  Getting lost in a familiar place is part of it.  We all read the street signs and use them to familiarize ourselves with our whereabouts and communicate to others our experiences there.  Practicality aside, the real advantage of an urban walk is ignoring precisely the need to communicate the location.  Streets should be named instead for the sounds one may hear on them.

I have provided this recurring satellite view of my walkable terrain, but I even question its value other than to give a sense of scale of the walk.  For example, the spaces which continue from the outside to the inside -- how are these sonic continuities to overcome the familiar delimiting of interiors and exteriors?  The satellite photo is blind to interiors and numb to the scale of individual sounds.

But there are unexpected relationships between quadrants of the island which in fact drive me to explore more every time I go out.  Deeper into the grain of the city, similarities between two different spaces in different moments of time could be knitted together by a precise framework.

The spaces of the city could be taxonomized by a host of sonic qualities: loudness, frequency range (Hz), frequency of occurance, breadth, height, reverb, diffuseness, velocity, proximity, timbre, fuzzyness, reproducibility, and even its inaudibility i.e. vibrations which are below the threshold of hearing.  These new names, not just for streets but for all thoroughfares and places for pause, might go this way:

Street of Cars Bowling for People
Garden of Circling Sparrows
Garden of Reverse Waterfalls
Sidewalk Spouting 700 Hz
Cranes Thumping Every 15 Seconds Alley
Muzak's Shortcut
The Street Where I Heard a Strange Bird but Maybe It Was a Machine


For this sixth Lunchwalk, I took 43 slices of sound out of the walk and glued the slices back together.  Each slice is potentially a new entry into the sonic taxonomy of the city.  Listen: