{"id":176,"date":"2019-10-07T19:38:09","date_gmt":"2019-10-07T23:38:09","guid":{"rendered":"https:\/\/itp.nyu.edu\/adjacent\/issue-6\/?p=176"},"modified":"2024-10-08T23:14:27","modified_gmt":"2024-10-08T23:14:27","slug":"precisely-experimental-a-progression-of-analog-synthesizers","status":"publish","type":"post","link":"https:\/\/itp.nyu.edu\/adjacent\/issue-6\/precisely-experimental-a-progression-of-analog-synthesizers\/","title":{"rendered":"Precisely Experimental: A Progression of Analog Synthesizers"},"content":{"rendered":"\n<p>When we talk about music, we have a vocabulary for how music is made. We <em>perform<\/em>, or <em>improvise<\/em>, or <em>compose<\/em>, or <em>notate<\/em>. More recently, we <em>record, overdub, track<\/em> our sounds. In the 21st Century, more and more musicians do something a little different &#8211; they <em>program<\/em> music. This summer I spent some time thinking about what this means, and how we could revisit the original tool by which music was programmed: the <em>sequencer<\/em>.<br><\/p>\n\n\n\n<p>Around twenty-five years ago, long before I\u2019d heard of ITP, I started hanging out at the Electronic Music Center at Columbia University. Founded in the mid-1950s, and now renamed the Computer Music Center, this place is the oldest research facility for electronic music in the Western Hemisphere. The CMC became a pioneer in electronic research, ranging from early experiments with tape delay, basic research in audio mixing and spatialization, and the development of <a rel=\"noreferrer noopener\" aria-label=\"open source computer music languages (opens in a new tab)\" href=\"http:\/\/rtcmix.org\/\" target=\"_blank\">open source computer music languages<\/a>. In addition, because of the CMC, Columbia has one of the top programs in <a rel=\"noreferrer noopener\" aria-label=\"music composition (opens in a new tab)\" href=\"https:\/\/music.columbia.edu\/graduate-study\/programs\/graduate-study-in-composition\" target=\"_blank\">music composition<\/a> and <a rel=\"noreferrer noopener\" aria-label=\"sound art (opens in a new tab)\" href=\"https:\/\/arts.columbia.edu\/sound-art\" target=\"_blank\">sound art<\/a> in the United States. But despite its over sixty years doing innovative work, the Center is best known for a room-size relic in the form of a piece of vacuum tube-powered equipment called the <a rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\" href=\"https:\/\/en.wikipedia.org\/wiki\/RCA_Mark_II_Sound_Synthesizer\" target=\"_blank\">RCA Mark II Sound Synthesizer<\/a>, nicknamed \u201cVictor\u201d. Victor, as it\u2019s been often claimed, is not the world\u2019s first synthesizer. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/8Y1VpomIOQM2L2gygtdPWBe1Kpe3d-44LcCYf_oSOfuWublYdD7jCHT96sDfkQFFuw4eMt6qc7ovc--voEGXwge39OpgBGkjpxr8zLn5D8gcphobrcFTcDPKSWgHDwwvuPBhWuHy\" alt=\"An Older Photo of Faculty Members at the Computer Music Center, standing in front of the RCA Mark 2 Sound Synth\"\/><\/figure>\n\n\n\n<p>Depending on whether electricity is key to how you define <em>synthesizer<\/em> and how pedantic you might be, the world\u2019s first synthesizer may, in fact, be the <a rel=\"noreferrer noopener\" aria-label=\"Telharmonium (opens in a new tab)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Telharmonium\" target=\"_blank\">Telharmonium<\/a>, developed in the 1890s. Alternately, whoever started naming the stops on <a rel=\"noreferrer noopener\" aria-label=\"pipe organs (opens in a new tab)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pipe_organ\" target=\"_blank\">pipe organs<\/a> after the instruments they mimicked &#8211; most likely in Byzantium in the 8th Century CE &#8211; could have been the inventor of the synthesizer.<br><\/p>\n\n\n\n<p>Similarly, Victor&nbsp; wasn\u2019t the world\u2019s first sequencer &#8211; player pianos and music boxes, developed in the age of mechanical innovation that gave us cuckoo clocks and pocket watches, could reliably play repeated sequences of notes over a century before.<br><\/p>\n\n\n\n<p>In college and graduate school I was a fairly consistent presence at the CMC, where I <a href=\"https:\/\/drive.google.com\/open?id=1e1Sc6BXq0MfK2_YkKv7Rc2CN7A6_f3vO\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"would play it (opens in a new tab)\">would play it<\/a>, show it off, and sing its praises to visitors. During these demos, I\u2019d generally gloss over the fact that the system was obsolete within five years of its installation because some smart people in New Jersey had just invented the transistor.<\/p>\n\n\n\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/itp.nyu.edu\/adjacent\/wp-content\/uploads\/2019\/10\/rca.mp3\"><\/audio><figcaption>Short Audio Piece Composed on the RCA<\/figcaption><\/figure>\n\n\n\n<div class=\"iframe-wrapper -youtube\">\n<iframe src=\"https:\/\/www.youtube.com\/embed\/n00Ew9xUVng\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"><\/iframe>\n<\/div>\n\n\n\n<p>What Victor <em>did have<\/em>, as a first, was a combination of synthesizer and sequencer that was robust, reliable, and fully \u201cprogrammable\u201d by the user. While it wasn\u2019t a computer by any stretch of the imagination, Victor had a lot of things about it that were influenced by early computers, telecommunications infrastructure, and information theory. The sequencer ran on paper tape, similar to a player piano, but with a more open notational schema. Instead of the holes simply representing notes, they could be assigned to signal changes in amplitudes, durations, filter settings, and so on. <br><\/p>\n\n\n\n<p>Small patchboards allowed the user to rewire the large racks of equipment that made up each \u201cvoice\u201d of the synthesizer such that, for example, one voice could be mellow and soft and another could be brassy with sharp attacks. Finally, a four-bit binary encoder system was used for every parameter, assigning the entire vocabulary of musical attributes the RCA Mark II understood to a value from 0 to 15.<br><\/p>\n\n\n\n<p>The correspondence between Columbia and RCA around the development of the synthesizer is&nbsp; interesting, in that it highlights two things. One, is that getting the machine built and paid for was a little bit of a grift: Vladimir Ussachevsky and Milton Babbitt, the main faculty instigators at Columbia and Princeton, respectively, promised RCA that the synthesizer, once built, would replace the symphony orchestra. RCA was, after all, the Radio Corporation of America, and had a vested interest in the continuing success of radio stations that, more than likely, were supporting a unionized radio orchestra that was expensive to maintain.<br><\/p>\n\n\n\n<p>The second point\u00a0 of interest is that Victor was designed to be (and, once built, praised as) a <em>precision instrument<\/em>. This machine can play notes faster, more in tune, and with higher accuracy in every sense than the best concert violinist money can buy. The player piano interface, the patching system, and the all-around 4-bit quantization,\u00a0 meant that music written for Victor would come out as intended every time. Herb Belar and Harry Olson, the RCA engineers who designed the machine, claimed that it reproduced the programmed music with \u201cmilitary-grade\u201d reliability.<br><\/p>\n\n\n\n<p>The problem was, there was no way to make the machine play inaccurately, or randomly, or in a way that could include improvisation or experimentation as part of the creative process. The machine was quite loud, so loud that a shellac record lathe was hooked up to record an inexpensive run of a composition for listening in the next room. This high modernist riff on the dub plate meant that the RCA workflow was iterative, non-real time, and strangely disconnected from the immediacy of control that one expects modern analog synthesizers to have.<br><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/-Ix4fqNHYvRmLC3YI4wi_ormdG-54Vx3GTACAYEhI9NAyWlcgpIgXd5kXpiVmo5s290jWm-D0Fw7Huk9Z6pSOjzhS60J6ZweN9hFffBxD3bNS0BkOpdZ0eYevZX1UZHq6TgFa4Kw\" alt=\"Luke DuBois at the Computer Music Center \"\/><\/figure>\n\n\n\n<p>Columbia had other synthesizers as well, including a series of modular synthesizers developed a decade after Victor, using transistors that would condemn the large, vacuum tube machine to obsolescence by its 10th birthday.&nbsp;&nbsp;<br><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/eSh7cGJ0gJy5HRdFqWu9sGhZ_L_OQyNSGJykrtIOX1CsfVepBmlwy4nMlCC-MCJhVBv_KRaTXXb5R-Bge2UuzpoDQHyVAAnH7gspsfdx6p7OxfXgf1wlwwaaMfP9bINMUu2B4csN\" alt=\"Serge Modular System\"\/><figcaption>Serge Modular System<\/figcaption><\/figure>\n\n\n\n<p>These synthesizers, made by <a rel=\"noreferrer noopener\" aria-label=\"Don Buchla (opens in a new tab)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Buchla_Electronic_Musical_Instruments\" target=\"_blank\">Don Buchla<\/a> and <a rel=\"noreferrer noopener\" aria-label=\"Serge Tcherepnin, (opens in a new tab)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Serge_synthesizer\" target=\"_blank\">Serge Tcherepnin<\/a>, were \u201c<a rel=\"noreferrer noopener\" aria-label=\"West Coast\u201d  (opens in a new tab)\" href=\"https:\/\/reverb.com\/news\/the-basics-of-east-coast-and-west-coast-synthesis\" target=\"_blank\">West Coast\u201d<\/a> modular synthesizers, and were in many ways the opposite of the RCA Mark II. Optimized for experimentation, easy to use in live performance, and designed with a certain intentional inability to save your work, they were the machines that I really learned to compose on, making <a rel=\"noreferrer noopener\" aria-label=\"weird fantasias  (opens in a new tab)\" href=\"https:\/\/soundcloud.com\/r-luke-dubois\/thingsthatgo?in=r-luke-dubois\/sets\/cmc-compositions-1995-2002\" target=\"_blank\">weird fantasias<\/a> and <a rel=\"noreferrer noopener\" aria-label=\"downtempo dance music  (opens in a new tab)\" href=\"https:\/\/drive.google.com\/drive\/u\/1\/folders\/1MSeEIFZA5E0_SAys4ut9GiCWONdEV_t2\" target=\"_blank\">downtempo dance music<\/a> with the band I had started called the Freight Elevator Quartet.<br><\/p>\n\n\n\n<p>The Buchla and Serge machines, like the RCA Mark II, had sequencers &#8211; rows of knobs that you could then trigger through stage-by-stage, to control the frequency of an oscillator to make a melody (or any other parameter on the synthesizer). But they also had modules that generated noise, or warped the sounds you could make in unexpected ways. Buchla\u2019s most famous module in this vein was fittingly called the <em><a rel=\"noreferrer noopener\" aria-label=\"Source of Uncertainty, (opens in a new tab)\" href=\"https:\/\/buchla.com\/266e-source-of-uncertainty\/\" target=\"_blank\">Source of Uncertainty<\/a><\/em><a rel=\"noreferrer noopener\" aria-label=\"Source of Uncertainty, (opens in a new tab)\" href=\"https:\/\/buchla.com\/266e-source-of-uncertainty\/\" target=\"_blank\">,<\/a> and if he liked you, he\u2019d give you a red panel with your order, coated with LSD that\u2019s <a rel=\"noreferrer noopener\" aria-label=\"apparently still potent 40 years later, (opens in a new tab)\" href=\"https:\/\/sanfrancisco.cbslocal.com\/2019\/05\/21\/1960s-rock-music-san-francisco-lsd-buchla-100-synthesizer-grateful-dead\/\" target=\"_blank\">apparently still potent 40 years later,<\/a> with the idea that the contact high would encourage you to use the equipment in more adventurous ways.<br><\/p>\n\n\n\n<p>Serge synthesizers were of particular interest to me, because unlike most systems, they were designed to obfuscate (or eliminate entirely) the distinction between voltages that were \u201cmaking sound\u201d (audio) and voltages that were \u201ccontrolling sound\u201d (control voltages). This allowed you to take a timing clock and speed it up for use as a square wave, or taking something that would normally filter a sound and using it to <a rel=\"noreferrer noopener\" aria-label=\"warp and distort the signal controlling the volume (opens in a new tab)\" href=\"https:\/\/drive.google.com\/drive\/u\/1\/folders\/1MSeEIFZA5E0_SAys4ut9GiCWONdEV_t2\" target=\"_blank\">warp and distort the signal controlling the volume<\/a> of something else.\u00a0<\/p>\n\n\n\n<p>Last year, we commissioned <a rel=\"noreferrer noopener\" aria-label=\"Darrin Weiner (opens in a new tab)\" href=\"https:\/\/www.patch-point.com\/\" target=\"_blank\">Darrin Weiner<\/a>, a synthesizer builder in Berlin, to <a href=\"https:\/\/idmnyu.github.io\/audiolab\/synths.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"make us a Serge Modular system (opens in a new tab)\">make us a Serge Modular system<\/a> at NYU.<br><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/cTQsyw0OSNQOaNjW4LNiIJYRwydWg7aMIfiOZGMWERYIZB09nUJzQI61wRLUrXvhoqXQiG0GQJYh6WQvT--7sYFTo2l6nRCGmSeHKyinr-Wf7VZVF_G0_Jsojr3zPNcE-YF85m1N\" alt=\"Serge Modular System Custom Built for IDM\"\/><figcaption>Serge Modular System Custom Built for IDM<\/figcaption><\/figure>\n\n\n\n<p>This machine has been an incredible addition to the IDM audio lab, and a lot of fun to work with. I kept thinking, though, about the RCA \/ Buchla dichotomy of synthesizer systems that are precise, versus systems&nbsp; that are experimental. This past summer, I invested some time in developing a new set of modules that were, in fact, <em>precisely experimental<\/em>, to work with our new Serge. These modules would use Arduino-class microcontrollers and CMOS chips to keep the part count low, while moving as much of the logic as possible to software, and keep \u201canalog\u201d only that would eventually make their way to the audio path of the synthesizer. This had the added bonus of making easier to design and more legible to work with, lowering the bar for students at NYU to make more designs in the future. These new modules were designed to be housed in a standard 19-inch rack drawer with holes drilled in the front for the interface. I call this project the <a href=\"https:\/\/github.com\/IDMNYU\/shelfisizer\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shelfisizer (opens in a new tab)\">Shelfisizer<\/a>.<br><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/q3IOk1QWb-nk0KSOU9hUS92RsjJUcqr19xSOf-RVUIZ0Y9QLVCWnrKBCWXtvnJmsoLRiqer0MRyE-9eGyDNfNNq7oCHLQ99d-dFcyzZiQxG_afVivr3MC9xP0DEV5CBOgF4M2d8f\" alt=\"Picture of the Shelfisizer Synthesizer\"\/><figcaption>The Shelfisizer Synthesizer<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/Tl3m5WAapvOsTRgOocos6CbrtStwV24GgfC4xv4gRzhSf3lOdjCLuxF_rjMoG8NEpuLnqMNtX7xJGsO3xJMwUL-ia-a-FO3d6iXvWm7AvwBoP0zzsrcAHqf2YHow91TJkaA3pInr\" alt=\"Shot of the Inside of the Shelfisizer Synthesizer \"\/><figcaption>As you can see, it\u2019s a bit of a mess inside, but it gets the work done.<\/figcaption><\/figure>\n\n\n\n<p><br><\/p>\n\n\n\n<p>The modules I developed were all attempts to broaden our understanding of what a sequencer does. Three of them are mocked up below as P5 sketches.<br><\/p>\n\n\n\n<p>The first is fairly straightforward:<\/p>\n\n\n\n<div class=\"iframe-wrapper\">\n<iframe src=\"https:\/\/www.openprocessing.org\/sketch\/761918\"><\/iframe>\n<\/div>\n\n\n\n<p>It consists of four rows of patterns that can be up to 16 steps long. These patterns go in lock-step, so that when row A is on step 7 of the pattern, so are rows B, C, and D. This is a classic pattern sequencer used in, e.g. drum machines, but has a key-driven interface to cruise around the grid and change patterns.<br><\/p>\n\n\n\n<p>Next, I thought I\u2019d reimagine the sequence to be less about a specific pattern and more about specific cycles of activity:<br><\/p>\n\n\n\n<div class=\"iframe-wrapper\">\n<iframe src=\"https:\/\/www.openprocessing.org\/sketch\/764799\"><\/iframe>\n\n<\/div>\n\n\n\n<p>In this module, six channels of voltages can be compared to a threshold (and sometimes each other). When a clock signal is applied giving the system a rhythmic pulse, the state of the voltages determine whether a note gets triggered. Different modes change these rules, and a number of the modes apply <a href=\"https:\/\/en.wikipedia.org\/wiki\/Hysteresis\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"hysteresis (opens in a new tab)\">hysteresis<\/a>, so that the incoming voltages have to fall below the threshold before they can trigger again. By changing the sliders, you can simulate the musical effects of rising voltage ramps of different speeds against different clocks.<br><\/p>\n\n\n\n<p>Finally, a third sequencer considers the sequence not as a series of steps but as a table of numbers:<br><\/p>\n\n\n\n<div class=\"iframe-wrapper\">\n\n<iframe src=\"https:\/\/www.openprocessing.org\/sketch\/764951\"><\/iframe>\n<\/div>\n\n\n\n<p>In this module, three voltages scan sixteen possible values, so that value 1 is output when an incoming voltage is low, value 16 when it\u2019s at its maximum, and everything in between. This means that a rising voltage input will play the values in order, like a traditional sequencer. It also means, however, that a noise source will randomly sample the values; and a triangle wave input will scan the sequence back and forth like a palindrome.<br><\/p>\n\n\n\n<p>The idea here is to break open these systems &#8211; musical, electronic, computational &#8211; and treat them more metaphorically than literally. You can see the hardware in action here:<br><\/p>\n\n\n\n<p>One of the things I learned from building the Shelfisizer is that there\u2019s a false dichotomy in so many of the machines we use to make music (and art, for that matter). We are presented with many tools that claim to be <em>precise<\/em>; other tools promise us room to <em>experiment<\/em>. The circuits I made this summer were an attempt to have both &#8211; to find experimentation in precision, and accurate ways to bring about complex musical interactions.<br><\/p>\n\n\n\n<p>A playlist of music I\u2019ve been making over the past year with the Serge and the Shelfisizer can be found here:<br><\/p>\n\n\n\n<div class=\"iframe-wrapper -soundcloud\">\n<iframe src=\"https:\/\/w.soundcloud.com\/player\/?visual=true&amp;url=https%3A%2F%2Fapi.soundcloud.com%2Fplaylists%2F789039837&amp;show_artwork=true&amp;dnt=1\"><\/iframe>\n<\/div>\n\n\n\n<p>Hope you enjoy.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When we talk about music, we have a vocabulary for how music is made. We perform, or improvise, or compose, or notate. More recently, we record, overdub, track our sounds. In the 21st Century, more and more musicians do something [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"class_list":["post-176","post","type-post","status-publish","format-standard","hentry","category-issue-6"],"_links":{"self":[{"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/posts\/176"}],"collection":[{"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/comments?post=176"}],"version-history":[{"count":1,"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/posts\/176\/revisions"}],"predecessor-version":[{"id":2744,"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/posts\/176\/revisions\/2744"}],"wp:attachment":[{"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/media?parent=176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/categories?post=176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itp.nyu.edu\/adjacent\/wp-json\/wp\/v2\/tags?post=176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}