Introduction —
Advantages of Wideband —
Challenges of Wideband —
The Good, Part I: Better Task Performance —
The Good, Part II: User Preference —
The Bad —
The Ugly —
Successful Deployment
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Introduction
We could have sworn the lab was haunted. As we walked into the room we could hear two of our colleagues talking to each other. Then we noticed that only one person ...
Advantages of Wideband
In an automotive environment, wideband (WB) speech reduces driver distraction, makes speech easier to understand in the presence of vehicle noise, and eliminates ...
Challenges of Wideband
Along with its benefits, WB speech also presents some challenges. People are more sensitive to WB echo and noise than to NB echo and noise ...
The Good, Part I: Better Task Performance
Wideband communication improves speech comprehension, talker identification, and speech localization. These benefits alone make a compelling argument for deploying WB speech in the vehicle. However, because WB ...
The Good, Part II: User Preference
Users prefer WB speech and judge it to be of higher quality than NB speech. In the presence of vehicle noise, they can expend less listening effort and can listen to speech at a more comfortable ...
The Bad
WB speech has many benefits, but it is not without its challenges. Chief among these are that people are more sensitive to WB echo and noise than to NB echo and noise, and that echo cancellers ...
The Ugly
Assuming that high-performance algorithms and careful electro-acoustic vehicle platform design have adequately solved the problems specific to WB speech, there still remains ...
Successful Deployment
Though further research that directly measures the effects of speech bandwidth in the automotive environment is needed, work done thus far clearly supports ...
