Broadcast news offers some unique
challenges:
•
Lexicon: important information in
infrequently occurring words
•
• Acoustic Modeling:
variations in
channel, particularly within the
same segment (“ in the studio” vs.
“on location”)
•
• Language Model: must
adapt (“ Bush,”
“Clinton,” “Bush,” “McCain,” “???”)
•
• Language: multilingual
systems?
language-independent acoustic
modeling?