Questions

Now, it’s time to check your knowledge. Select the best response to the following questions, and then check your answers, found in the Assessment section at the end of the book:

1. Even though voice recognition is a behavioral biometric, there is a great deal of _____ elements that can influence the way we speak.

   a. analog

   b. spectral

   c. physiological

   d. discrete

2. When we speak, we create a(n) _____ signal, which is represented as a waveform.

   a. analog

   b. spectral

   c. digital

   d. discrete

3. Using the Hidden _____Model statistical approach in analyzing speech improves the ability of the algorithm to recognize words.

   a. analog

   b. spectral

   c. digital

   d. Markov

4. Wideband transmission expands or widens the frequencies from 50 Hz to _____ kHz.

   a. 3.4

   b. 7

   c. 11

   d. 20

5. A (n) _____voice recognition system is unconstrained and can recognize the speaker no matter what is being said.

   a. analog

   b. spectral

   c. text-independent

   d. Markov

6. Since 1996, _____has been hosting an...