Future Goals for E.C.H.O.

Ideally, E.C.H.O. would be displayed publicly in an art space as an interactive soundscape. Physically, we would like it to be more like a box, rather than a mess of jumbled pieces. It relies heavily on being connected to a computer, but we would like to remove this necessity by using a raspberry pi or something equally small, inexpensive and customizable.

E.C.H.O. all connected--it's a  mess.

E.C.H.O. all connected–it’s a mess.

The physical pieces pose the largest challenge. We need still need to rewire the system from DC to AC in order for it to work properly. It would also be nice to add a visual component–whether it be a projected twitter stream or lights that correspond with each hashtag trigger.

Interactive Soundscape

As we’ve noticed throughout our experiment and in class, the user interface of a system can highly affect engagement. Using E.C.H.O. as an interactive soundscape could allow us to explore many questions about audience interaction:

  • Would audiences try to be the “loudest”?
  • What would inspire people to work together to create something more musical, rather than something entirely cacophonous?
  • How would this physical display differ from the Twitter sphere itself? Would the translation of data into sound affect user interaction, or have we been too programmed to use social media in a certain way? Would audiences have trouble breaking this mold?
  • Would a “gamification” occur? Is the ability to control a publicly shared experience enough to incentivize interaction?

We utilized polarized hashtags as an attempt to comment on discussion quality on twitter, but you can use different hashtags and sounds to make different assumptions. Presentation is vital to the interpretation of this piece because it can be so abstract. Depending on the time and space in which it is presented could heavily influence the hashtags, sounds and incorporation of audience participation.

Wiring Is Hard: Piecing Together E.C.H.O.

Even with a group of 6 tech-savvy college students, only one of us had any prior experience with physical tech. Equipped with his toolbox of secrets and wires, Will set out to piece together one of the most vital components of this project: translating all of the instructions we are creating on the computer to our sound devices.

Originally we intended to have 6 audio inputs using 3 tape players, each with a LEFT/RIGHT channel. In order to accomplish this, Will needed to wire each audio source to the Arduino so that it could then trigger when the audio should be on/off (depending on if there was a tweet or not).

Early Problems:

  • Will had originally envisioned the project using a Bipolar Junction Transistor  rather than a Field Effect Transistor  Essentially, a BJT is always “off” until you turn it “on”, while a FET is always “on” until you turn it on “off”. While this was a relatively quick fix in the Arduino code, it took some tinkering to figure out what was wrong.
  • Wiring is hard. The bread board holes are very small, so as will discovered it is extremely difficult for standard core wire to be manipulated into these holes. Because we are using mostly audio equipment, most wiring is typically standard core because it is less prone to breaking. While this may be good for the wires themselves, Will had a really hard time making it all work together within such a tight space.

Once the actual bread board was constructed and connected to the Arduino, we met to try and piece it all together. The final breadboard consists of 4 NTE 2343 transistors, 4 resistors and a ground.

Arduino for the E.C.H.O. Project

Arduino for the E.C.H.O. Project

Emerging Difficulties:

  • After we met to combine it all together, all the pieces worked separately but not when combined. Currently we are still working on trying to make sure that the sound only plays when triggered. It looks like some of our audio inputs are stronger than we expected and need to either be grounded separately, or we need to add more resistors. 

ECHO