1.
Welcome!
David Effendi
GNOME Asia Summit 2015
University of Indonesia

2.
The Problem
● I have a lousy eyesight and I must edit some
text...
– Where's the cursor?
– Where am I in the text?
– How to navigate through the body of the text and
quickly “zero-in” on portion(s) that needs to be
changed?
– and then check if that change was typed
correctly?

3.
The Original “Spark”
● Head tracking device using IMU
● Natural movement through the text
● Lightweight
● But what if.....

4.
The Thing Today
● Three motorized sliders, eliminates:
– Moving to the right, but straying up/downwards
– Extended fixation strain
– Inaccuracy when returning to the text
– Incidental / jerky / reflex movements
● Desk-bound

5.
The Demo
● Now this is the fun part :)
● Reading text (non-visual and visual)
● Importing text
● Editing text
● Change language
● Change speech rate and spelling rate

6.
The Components (Hardware)
● Slide potentiometers (motorized!)
● Rotary potentiometers (1 motorized, 2 normal)
● Push buttons
● Arduino (UNO to Mega)
● Adafruit Motor Shield (v2!)
● PcDuino3 (or other Linux SBCs equivalent or
better, or just plain laptop/desktop)

7.
The Components (Software)
● Espeak text-to-speech
● Arduino
● Node.js + Angular.js + Socket.io

8.
The Philosophy
● Easy-to-find hardware components
● Be the “next-step” after Arduino Inventor's Kit
● Interchangeable / modular hardware components –
no “big black box”, “RYO” (re-use your own)
components
● Easy to isolate each components, to learn how it
works, how to modify and how to re-use it in other
projects
● Education first, Economy second

9.
The Next Steps
● Social chat
● Wikipedia reader
● GNOME desktop integration
● IDE (!)
● Web-browser / Elinks / full browser integration

10.
The Reason Why
● “There won't be any money in this”
● “And you will lose income, do you know that?”
● “You have a wife and a kid, you're not being
responsible!”
● “Are you crazy??”

11.
The Reason Why
● I just want this problem nailed
● I dont want to be another bystander
● It “floats all boats”

12.
Mary TTS – A Special Shoutout
● GREAT NATURAL sounding
● Runs on OpenJDK
● More resource intensive
● Software is less robust
● Indonesian Voice (!)

13.
The Case For Text-To-Speech
●
NOT only for accessibility / disability
●
Voice-enhanced queueing systems
●
Announcement systems – public transport, events, etc
●
Speed-reading while commuting
●
Wearables / headless systems (e.g. “checklist” application)
●
In-vehicle applications (e.g. GPS Navigation)
●
Low-bandwith podcasting
●
Computerized exams
●
TTS for Bahasa Indonesia = 260 million people immediately
benefits!

14.
The Influencer
● Dear Programmer, A Special Note...

15.
Code, build, hack
COBUHA!
:)

16.
Thank you! :)
Email:
kurakuradave@gmail.com
GitHub:
Www.github.com/kurakuradave/chorustext/
Website:
Www.chorustext.org
Next Public Event:
Maker Faire Singapore 2015, 11th-14th July 2015