For speech understanding systems to gain widespread acceptance in office automation, they must feature: A. speaker independence B. speaker dependence C. isolated word recognition D. All of the above E. None of the above

The correct answer is: D. All of the above

Speech understanding systems must feature speaker independence, speaker dependence, and isolated word recognition in order to gain widespread acceptance in office automation.

• Speaker independence means that the system should be able to recognize speech from any speaker, regardless of their accent or voice quality. This is important in office automation because it allows employees to use the system without having to train it to recognize their voice.
• Speaker dependence means that the system should be able to recognize speech from a specific speaker, even if they are speaking in a noisy environment. This is important in office automation because it allows employees to use the system to dictate documents or give commands to computers without having to worry about background noise.
• Isolated word recognition means that the system should be able to recognize individual words, even if they are spoken in isolation. This is important in office automation because it allows employees to use the system to enter data or control computers without having to speak in complete sentences.

Without all of these features, speech understanding systems would be less useful in office automation. Employees would have to spend more time training the system, and they would be less likely to use it in noisy environments. Additionally, they would have to speak in complete sentences, which can be difficult and time-consuming.