Speech

1
Speech Gesture

• Hello computer.

2
A Voice Interface
3
Waveform Spectrogram

• Speech does not equal written language

4
Parsing Sentences
"I told him to go back where he came from, but he
wouldn't listen."
5
How to use a PDA
6
Personal Digital Asst. (PDA)
Palm VII
Palm IIIc
Handspring Visor
HP Jornada
Apple Newton (1993)
7
No Shredder
8
Free-form Ink

• Ink is the data, take as is
• Human is responsible forunderstanding
  andinterpretation
• Like a sketch pad

9
Pen Gesture Commands
- Might mean delete
Define a series of (hopefully) simple drawing
gesturesthat mean different commands in a system
10
Soft Keyboards

• Common on PDAs and mobile devices
• Many varieties
• Tapping interface
• Stroking interface

11
Tapping Interface

• Presents a small diagram of keyboard
• You click on buttons/keys with pen
• QWERTY vs. alphabetical
• Tradeoffs?
• Alternatives?

12
Tegic Communications-T9

• Tapping interface that uses phone pad
• You press out letters of your word, it matches
  the most likely word, then gives optional choices
• Used in mobile phones
• www.tegic.com/t9

13
ATOMIK SHARK
14
Cirrin

• Developed by Jen Mankoff (GT-gtCal)
• Word-level unistroke technique

15
Quikwriting

• Developed by Ken Perlin

16
Special Alphabets

• Graffiti - Unistroke alphabet on Palm PDA
• Experience?
• Other alphabets or purposes
• Gestures for commands

17
Example

• Flatland, Igarashi PARC

18
Example

• Silk - J. Landay, CMU (now Berkeley)

19
Example

• DENIM Landay, Berkeley

20
Project Part 3 (due 3/25)

• Implement prototype
• Identify/complete a design
• Implement a prototype
• Development platform of your choice
• Enough so that it can adequately be evaluated
  inpart 4
• Develop evaluation plan
• Usability specifications
• What you will do in part 4