ETC Manual

Chapter Zero: Quick-start Guide

Let there be visuals!

Welcome to The ETC Television Center (or simply ETC to her friends)! Time is money so let’s get you up and running…

Package Manifest

Along with this card, there are two main items in the box you just opened.

  • Your ETC. Also note that a tiny white USB drive is also plugged in on the right side of the unit. This drive holds the patches that ETC will use to paint its pictures.
  • Its power adapter. While the power supply has prongs for US-style wall sockets, it will work with input voltages from 100 to 240VAC at 50/60Hz. You may need an adapter for the shape of your wall socket.

Getting Started

Follow these steps to make your sound visual.

  1. Connect the HDMI Out port to a powered-up HDMI® monitor.
  2. Connect the power adapter to a power outlet, and then connect its plug to the leftmost port on the back of ETC. The top row’s Status LED will indicate progress, glowing blue as ETC will is booting up, and then white when things are operational. Your connected monitor will also show the boot up process.
  3. Press the top row’s On Screen Display button (ICON IMAGE). Your monitor should now show an overlay of current system information. You can press the button once more to toggle off this display.
  4. To transmute audio to video, connect a 1/4" audio cable to the Audio In port, and turn up the top row’s Audio Input Gain knob (ICON IMAGE). (Feel free to crank it; you won’t hurt ETC’s ears.) As long as an audio signal is coming in, you should start getting pictures on your HDMI display.
  5. When you have had enough fun for now, press the Shutdown button (ICON IMAGE) on the top left of ETC. The Status LED will glow pink while the device shuts itself down. Once the Status LED is off, it is safe to unplug the power supply.

Chapter One: ETC™ Concepts

What is this box with the curious icons?!‽

Again, welcome to the world of ETC! As this video instrument has an inherent range and can work for different people in different ways, let us start by talking about what it is and where on Earth (or beyond!) it came from. We’ll then look at some of the basic concepts in play and make sure we are speaking the same language. Then we’ll close with a word on using this guide, preparing you to go forth and visually multiply. So back to our origin story…

Where did The ETC Television Center come from?

We at Critter & Guitari (hello!) have released video boxes before, and we are still rather fond of those devices. Their intended use was simple:

  1. Plug in an audio input, feeding live sound to the box.
  2. Plug in a live video output for a projector or other display.
  3. Set a couple knobs.
  4. Go back to playing music, and live visuals will accompany you.

While ETC preserves this “self-service” approach, a number of other modes and options are present.

Is ETC ready to go out of the box?

Yes! Once ETC is connected and powered up (see chapter zero), it will automatically begin creating visuals with the factory presets.

Does ETC have different methods of creating video?

Yes! You can cycle forwards and backwards through ETC’s current visual modes by pressing the two Mode Selector buttons on the bottom left of the front panel (around the eyeball icon). Each valid patch on the USB stick is loaded as a mode, and the preloaded factory content provides a survey of unique visual effects.

Can I play ETC as a video instrument?

Yes! The knobs and buttons on ETC’s front panel provide direct access to the inner workings of ETC and each available visual mode. To expand your control options, you can connect a pedal to ETC’s Foot Switch port, or even wire up a MIDI controller to the MIDI In port, etc.

Can I just plug in ETC and go back to playing bass?

Yes! If audio is running into ETC, a couple of knob tweaks should get you a steady stream of responsive visuals.

Can I capture still images generating by ETC?

Yes! The bottom row of ETC has a dedicated Screenshot button (with a camera icon). Pressing this button will capture the current output of ETC to an image file on the USB drive.

Can I feed still images into ETC as source material?

Yes! Modes can be made to use still images from within the mode’s file structure. A couple of the factory presets use this approach and are good examples if you want to explore this avenue.

Hold up. Can I edit ETC’s modes?

Yes! All of ETC’s modes are written in pygame, an open-source Python library. This means that for the brave, every mode on your USB drive could be edited. And for the truly bold, new modes of your own can be created.

So, there is no “right” way to use ETC?

Exactly! ETC is a vehicle for creating visuals. You may want that in a live performance environment, or you might wish to capture and edit the output. Perhaps you want someone to operate ETC throughout your set, or maybe you yourself just lean over and switch scene presets ever song or two. You might want to get out a text editor and code a new mode, but you can just as easily download new modes that others have written. Any of these choices are valid as long as they serve your purposes!

ETC Concepts

Our introduction and the sticker on the back of ETC have already hinted at certain ideas and the terms we are using to express them. Let’s take a moment to be clear about the concepts in play.

An ETC mode is a method for creating visuals. In audio terms, you could think of each mode as a patch. The mode can be switched instantaneously from the front panel. Each available mode lives on the attached USB drive along with any support files it may need.

In building the initial factory modes, we have considered modes as falling into three broad categories:

  • An oscilloscope mode directly visualizes the incoming audio signal. This could take the form of a classic “oscilloscope” signal representation or something far different. Either way, animation is continuously updated with the received audio.
  • A trigger mode also visualizes the incoming audio signal, but it doesn’t draw continually as an oscilloscope mode would. Often, a threshold must be crossed for the audio to get visualized. This could be an audio threshold, where only certain levels of sound cause substantial visual activity. The threshold could also come via a button (such as the Trigger button), a connected Foot Switch, received MIDI notes, or something else altogether.
  • A draw mode creates visuals regardless of whether audio signal is reaching ETC or not. It could still use incoming audio for an effect, but painting should continue without the audio connected.

As these descriptions indicate, there is plenty of wiggle room as modes can readily blend these ideas or go off in completely new directions. But thinking in this way may help you understand the factory modes — and even organize your own ideas for new modes or new categories.

As for the controls of ETC, we think of them as falling into a couple of categories.

  • Foreground controls change parameters of the local mode. Consisting of the four numbered knobs on the front panel, these controls affect settings defined within the currently loaded mode.
  • Background controls set global parameters. These include the Background Color knob, the Auto Clear Toggle, and the Audio Input Gain knob. Even when you change modes or scenes, these parameters are persistent.

An ETC scene is essentially a preset. Each scene stores which mode was being used and the setting of all four foreground controls.

The next chapter will explore how to put all of these ideas into action, but understanding modes versus scenes (and foreground controls versus background controls) will let us hit the ground running.

How to Use This Manual

Certain chapters (such as this one!) are relevant to everyone. But depending on how you plan to use ETC, some information may prove more valuable to you.

  • Regardless of your intentions, the quick-start (chapter zero) and concepts information (chapter one) will benefit you.
  • For out-of-the-box usage, the information on operating the hardware (chapter two) will be a central guide, walking you through the functions of the various panel controls and ports. And the factory patch information (see URL?) will walk you through the standard modes and their parameters.
  • If you are looking to load additional modes into ETC, then chapter three will also be useful to you. Then you can scour our online repository of additional ETC modes (URL?).
  • If you want to edit modes or even create some of your own, chapter four will help you prepare your work for ETC.

Just realize that how you use ETC today may be very different from how you use it a week from now. This is to say feel free to skip information that isn’t of use to you today; you may find that later chapters appreciate in value over time.