BravoBrava
Mississippi State University
• Spontaneous
telephone speech is still a
“grand
challenge”
• Telephone-quality speech is still central to the problem
• Vision for speech technology continues
to evolve
• Broadcast news is a very dynamic domain
0%
10%
30%
40%
20%
Word Error Rate
Level Of Difficulty
Digits
Command and Control
Letters and Numbers
Read Speech
Evaluation Metrics
Evolution