20. Efficiency of Voice vs Text
âą We type slower but read faster than speaking
âą Text becomes more efïŹcient as the group gets bigger
âą Typing 20-60 Words Per Minute
âą Speaking 160 WPM (Audio Books)
âą Reading 250-300 WPM
âą Listening up to 300 WPM
21. Efficiency of Voice vs Text
Source: Jacob Palme âElectronic Mailâ Artech House Publishers 1995
22. Efficiency of Voice vs Text
Email Voice
Text becomes more efïŹcient
when the group gets to
5 participants
23. Efficiency of Voice vs Text
Mobile Voice
Text
Mobile Text becomes more efïŹcient
when the group gets to
9 participants
24. The Problems with Voice
Itâs not just about efïŹciency
Increasingly viewed as
âą Anti-Social
âą InefïŹcient
25. The Problems with Phone Calls
âą Interrupting
âą Waiting
âą Social Awkwardness
38. What people want
Lightweight interaction (not calls)
Groups (social segmentation)
Text,Voice, Pictures,Video, Location
Fast (progressive and low latency)
39. Messaging Apps
Innovation occurs at the edges
Tom Katis
CEO, Voxer
Copyright 2011 Voxer LLC