S C O T T P E T E R S E N ∞ E L M U C O ∞ S C A C I N T O . C O M

homepage for scott eric petersen, el muco, and all things electronic

Audio Fun with Inductor Coils


As Ethan and I await the arrival of components necessary to embark on our spring reverberation tests, we pass the time by winding inductor coils and playing with magnetic fields. Read the rest of this entry »

Filed under: DIY, Tutorial / How-to, , , , ,

Fun with the Wien Bridge Oscillator


Look ma, a (almost) sine tone!

To the fledgling electronics enthusiast who has just enough knowledge of electronic music theory to be dangerous, it makes sense that the simplest tone, the sine tone, should be the simplest/easiest to construct in the analog electronics domain.  Of course, this is not the case.  While geometrically simple to describe, the sine tone is not easily achieved using electronic components.  Most designs found online indicate that the most common method is to “filter” a square wave created by an op-amp through a given set of components placed between the output, the non-inverting input, and the ground.  This is the method employed by the Wien Bridge Oscillator. Read the rest of this entry »

Filed under: DIY, Tutorial / How-to, , , , , , , , , , ,

Modular Synth Components

(top, left to right) Oscillator with voltage divider, low pass filter, white noise generator, amplifier

(top, left to right) Oscillator with voltage divider, low pass filter, white noise generator, amplifier

Last night El MuCo (The Mutagenic Cooptoraptors) accomplished a feat heretofore unimaginable: three circuit projects were undertaken and three projects were completed successfully.  While you may be tempted to think that, with the assistance of a book (Ray Wilson’s Analog Synthesizers) and the vast power of the internet this is not a big deal, you could not be more mistaken. Not only because of our chronic electronic ineptitude, but because even getting all the parts together for this much electronic awesome is daunting.  Of course, we didn’t have all the right parts, but we did it anyway because SCOFFING AT CONVENTION IS OUR BREAD AND JAM™! Read the rest of this entry »

Filed under: Phase 1, Tutorial / How-to, , , , , ,

Music V: Back to the Future


In 1969 Max Mathews published The Technology of Computer Music in which he provides a  primer to digital sound and synthesis, describes the function of a computer music program, and provides a manual to the language he was describing, namely MUSIC V. It was to be the last MUSIC-N language he would write, and was the culmination of audio programming innovation that Mathews began in 1957 when he created the series of programs that formed MUSIC. Read the rest of this entry »

Filed under: Code, Music, Phase 1, Tutorial / How-to, , , , , , , , , , ,

Intro to SuperCollider 3 for the Uninitiated

sc3_128There are so many good tutorials, books, and websites out there for learning SuperCollider that one may scoff at “yet another…” SuperCollider intro and for good reason.  This article, however, aims to answer really basic questions at the absolute beginner level, questions such as “ok, but how do I get SuperCollider and what version do I want?”  I will present information in the form of an extended FAQ largely based on questions I have answered over and over again.  Read the rest of this entry »

Filed under: Code, SC3 - Code - Music - More, Tutorial / How-to, , , , , ,

New SuperCollider on (x)Ubuntu

SuperCollider on Xubuntu

My page on installing SC3.x on Ubuntu has been a popular page here at scacinto.com. Because it was written 3+ years ago, and more importantly, because so much changed with the SC3.6 update I felt compelled to write up another tut. This time I’m installed 3.6.x on Xubuntu 13.10. The flavor of Ubuntu you choose doesn’t matter. I like X because it uses the lighter XFCE desktop environment. Actually, I like and use #! Linux more, but Ubuntu is the easier and more people use it (even though #! is better!) so here goes: Read the rest of this entry »

Filed under: SC3 - Code - Music - More, Tutorial / How-to, , , , , , , ,

Experimental Musical Instrument Workshop @MakeHaven

Contact Mics hanging up to dry following workshop 1

Contact Mics hanging up to dry following workshop 1

Yesterday was the 2nd of what will now be three workshops I’m giving at MakeHaven hacker space in New Haven, CT. The first two focused on creating contact mics and designing and building acoustic instruments. The third workshop, TBA sometime in October, will center on basics of electronics and circuits, bending/hacking instruments, toys, household objects, etc, and then interfacing the analog with the digital via Arduino. If you are interested in coming to the third workshop, please leave a comment below, or go to http://www.makehaven.org to check out the event. (You do not need to have attended parts 1 and 2 to attend part 3.)

You can see some pictures and videos from the workshops at the following link:

Filed under: El MuCo, Tutorial / How-to, , , , , , ,

Batch Normalize and add Fades to Audio Files


A new project I have just started has had me editing a lot of relatively long audio files.  I have to cut them up separating the noise from the spoken word, normalize each file, and add fades to the beginning and end.  Then, I have to export them.  I was using Audacity, which is a great (though ugly) audio editor.  However, there are some problems with batch work in Audacity that ended cost me a lot of time and ultimately making it unsuitable for my purposes.  Finding no app for mac to quickly batch normalize, add fades, and save as a 48k/24-bit file, I decided I would bite the bullet and try to *assemble a bash script to do the tedious work for me. Read the rest of this entry »

Filed under: Code, Music, Tutorial / How-to, , , , , , , ,

INI Workshop Prototype Instruments pt. 2

INI Prototype Instruments Pt. 2

INI Prototype Instruments Pt. 2

These are the last of the prototype instruments I designed for the INI instrument workshop which took place last Thursday at Artspace New Haven.  If you go to ininewhaven.com you can see some pictures and video from the event.  Turnout was great and everyone had a swell time making things to make noise.  We plan to give a series of instrument making workshops at MakeHaven (makehaven.org) in the new year so stay tuned.  We envision a 2-part workshop where we would make contact mics in part 1 and then make instruments in part 2.

Read the rest of this entry »

Filed under: El MuCo, Music, Tutorial / How-to, , , , , ,

How to: Make Contact Mics


In preparation for our instrument making workshop at Artspace New Haven on December 13th, your intrepid guides Brian and Scott spent a foggy Sunday afternoon making contact mics from scratch.  The below is both a how-to and an advertisement for the workshop.  If you are around New Haven, please follow this link to the INI site and register now as seats are limited to 10 and they will go fast.  So without further ado, lets make some contact mics! Read the rest of this entry »

Filed under: El MuCo, Tutorial / How-to, , , , , ,

G O I N G S O N : L O C A L (ISH)

fritz Art of Fritz Horstman
kane Music of Brian Kane
fritz Hartford Phase Shift
fritz Hartford Sound Alliance
Lique Art of Philip Lique
Lique Music of Matt Sargeant
strycharz Art of Heather Strycharz
uncertainty Uncertainty Music Series

My Other Awesome Sites [•_•]

Assault! 375 Aural Assaults!
About me! About me!
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My (soon-to-be) Company! My (soon-to-be) Company!

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INI new haven

Handmade instruments by Scott Petersen and Brian Kane at Artspace New Haven