
Discussion Recording
Einsturzende Neubauten
Nyquist theorum, SA-CD, Delta-Sigmoid, and the origins of 44.1hz
Chris Salter: Architecture of Listening
Hearing Loss due to Noise (Brain Loss due to Media)
Wendy Carlos – Oval – Avro Part – Nusrat Fateh Ali Khan
Stockhausen
Mike Oldfield – Gavin Bryrars – John Chowning
Aria and Subliminal Audio Branding – Wim Delvoye
Molecular cooking: Elbulli

Discussion :The theme of the week spontaneously migrates toward sound. We begin recording in a freight elevator discussing algorithms for elevators and then move into the black box in the basement of EV building at Concordia where diverse tangents related to audio emerge accompanied by assorted blips, screechs and hoarse volcanic whispers from Marija Ballman who is working on her superCollider code generating stray vortices while we talk.
[audio:http://glia.ca/conu/salter/wp-content/mp3s/conversationWithChris-jan22.mp3]
Our discussion commences with an attempt to teach me how to say Einsturzende Neubauten,
[audio:http://glia.ca/conu/salter/wp-content/mp3s/einsturzende Neubauten - Rausch_Die Interimsliebenden.mp3]

Next: musings over the Nyquist theorum, SACD (super audio CD) encodage, sigma delta modulation (an integral of the sound wave and sampling rates of 2 million hz that collapse to 1 bit), 8khz sounds, and the origin of 44.1 khz:
"In the early days of digital audio research, the necessary bandwidth of about 1 Mbps per audio channel was difficult to store. Disk drives had the bandwidth but not the capacity for long recording time, so attention turned to video recorders. These were adapted to store audio samples by creating a pseudo-video waveform which would convey binary as black and white levels. The sampling rate of such a system is constrained to relate simply to the field rate and field structure of the television standard used, so that an integer number of samples can be stored on each usable TV line in the field. Such a recording can be made on a monochrome recorder, and these recording are made in two standards, 525 lines at 60 Hz and 625 lines at 50 Hz. Thus it is possible to find a frequency which is a common multiple of the two and is also suitable for use as a sampling rate.
The allowable sampling rates in a pseudo-video system can be deduced by multiplying the field rate by the number of active lines in a field (blanking lines cannot be used) and again by the number of samples in a line. By careful choice of parameters it is possible to use either 525/60 or 625/50 video with a sampling rate of 44.1KHz."
From John Watkinson, The Art of Digital Audio, 2nd edition, pg. 104

A few asides about network authentication security protocols and laptop reconnect latency, the standardization of our ears: THX living room replicator dolby wrap-arounds. The conceptual problematics of mp3s and an essay Chris wrote that is readable online:The Architecture of Listening (Chris Salter)
"MEDIA DETERMINE OUR SITUATION" writes the German theorist Friedrich Kittler, imagining a world where human perception and being are replaced by archives, code, systems, and networks. This is not the stuff of science fiction—to be unleashed on us in some distant future—but rather the present.

Chris Salter "Architecture of Listening"
The HISTORY OF SONIC INVENTION is no less than a history of the entanglement of technology and perception.
We segue from asides about compression and redundant data and how the machines listen for us into how MP3 masking provokes different effects at different volumes and distorts wide dynamic range music such as classical music. The relation of this to Mel Slater’s minimal cue sets and how audio cues might need only be the crudest suggestion of a sound to evoke an affect response.

Hearing loss does occur due to sustained exposure to noise. Does brain loss occur due to sustained over-exposure to information? Are contemporary media-saturated task-drenched-professional academic brains comparable to computers with too many applications open? performance sluggish? There is every indication that there is an optimal task level appropriate to what Buckminster Fuller dubbed the ‘human-bio-computer’.
INDUSTRIAL HEALTH: (1998) ,
"Audiometric tests performed on 69 female workers from the weaving section revealed that workers with more than 10 years of noise exposure had the worst hearing threshold levels at 1, 000 and 4, 000Hz."
At the same time, I remember a study (where, I cannot remember! was it propoganda? did i invent it?) that found hearing loss did not occur in factory workers who lived in sustained noise — in fact just the opposite, their hearing was strengthened. But as Marija points out hearing loss does occur in Chinese farmers experiencing fireworks who are adapted to quiet environments and confronted by savage gunpowder blasts during annual festivals.
Does catharsis rip the emotional body, destroying forever its capacity to hear some emotional cadences? Post-traumatic art disorder. The tumult and noise of the culture war. Sound artists working in the rubble, sifting for clues to the savage game. Eating machines.

Also mentioned: skin sensors, tongue accelerometers, audiences infected with biometrics. Wendy Carlos unused soundtrack for "The Shining" in the background, textile factories in China,
Oval [audio:http://glia.ca/conu/salter/wp-content/mp3s/Oval - Store Check.mp3]
Avro Part [audio:http://glia.ca/conu/salter/wp-content/mp3s/ArvopartTrack20.mp3]
Nusrat Fateh Ali Khan [audio:http://glia.ca/conu/salter/wp-content/mp3s/Nusrat Fateh Ali Khan - Allah Hoo Allah Hoo.mp3]

Stockhausen’s Microphoné [audio:http://glia.ca/conu/salter/wp-content/mp3s/01 Mikrophonie I.mp3]
"Mikrophonie I (Work Number 15), for tamtam, 2 microphones, 2 filters, and controllers, is an example of moment form, polyvalent form, and process composition. It consists of 33 structural units, or "moments", which can be ordered in a number of different ways, according to a "connection scheme" specifying the relationships between successive moments by a combination of three elements, one from each of the following groups: (1) similar, different, or opposite; (2) supporting, neutral, or destroying; (3) increasing, constant, or decreasing (Davies 1968, 9)". SOURCE: Mikrophonie (Stockhausen) – Wikipedia, the free encyclopedia

Mike Oldfield‘s (2003) Tubular Bells on YouTube [By some fortunate fluke of fate, this video failed to download from youtube.....so I am spared the ashamed agony of watching it again] The video is beyond kitschy (Chris diagnosis: "so awful.. so bad…every kind of cliché in the book"); it utilizes lots of the kaleidoscope effect that I’ve been playing with a lot. This choice by Chris constitutes a quiet yet effective form of tacit criticism of the excessive use of this kaleidoscope effect that somehow has entranced me recently.
As we talk we spasm between discussing the music and listening to it in diverse forms: laptop youtube stuttering with latency and quicktime player simultaneously rolling. [audio:http://glia.ca/conu/salter/wp-content/mp3s/Tubular Bells.mp3]
Our thoughts shift to Gavin Bryrars [audio:http://glia.ca/conu/salter/wp-content/mp3s/gavin_bryars_with_tom_waits_-_jesus_blood_never_failed_me_yet_-_04_-_tramp_with_orchestra_iv_(full_strings).mp3],
John Chowning "Stria" (1997) (Chowning was the inventor of the DX7 and fm synthesis drone and one of Chris’ teachers.) [audio:http://glia.ca/conu/salter/wp-content/mp3s/Stria.mp3]

A mild aside into subliminal sonic branding: Chris plays an Aria ad for an HD display from Phillips (with a glowing emotive frame) that auto-downloaded to his iTunes library when he initially watched the ad. The song’s plastic devotion is heart-wrenching to the point of nausea. I do not insert it here since subliminal branding does not need me as viral transport.
For some reason sacchirine sentiment turns my mind to its sardonic opposite: Wim Delvoye’s (2000) film of popping pimples shot in techncolour close-up glory accompanied by triply cheez synth schmaltz. Watch at your own risk this (low resolution) ballet of pus online at UBUWeb. Or visit Wim’s site

At Peter Sellars’s birthday party Chris heard Sigur Ros.
Here is Kronos Quartet covering Sigur Ros’ Flugufrelsarinn [audio:http://glia.ca/conu/salter/wp-content/mp3s/kronos_quartet-flugufrelsarinn160K.mp3]

Distinct divergent ricochets of raw sound. Listen to all tracks at once or separately as yr proclivities suggest. This page is dedicated to the meandering immersive tumescent instinct that binds us to the vibratory patterns from which space is born. Dissected by a deluge of intense cadences digitally transfused across the global skin each human faces a perilous task of finding relevance in the noise. Cochlea catalepsy. Undulant interiority.

Closure cooking morsels of audio may bear similarities to cuisine: liquid nitrogenized truffles in cashmere sauce with estrogen Nyquist arpeggios: Ebulli
