MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless Mobile Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Multipulse excited LPC requires pitch detection. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The problem of buzzy twang in synthesized speech is mitigated by multipulse excited LPC or code excited LPC. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following LPC produces a buzzy twang in the synthesized speech? |
| A. | Multiple excited LPC |
| B. | Residual excited LPC |
| C. | LPC Vocoders |
| D. | Code excited LPC |
| Answer» D. Code excited LPC | |
| 4. |
Linear predictive vocoders use __________ to estimate present sample. |
| A. | Weighted sum of past samples |
| B. | Multiplication of past samples |
| C. | One past sample |
| D. | Do not use past samples |
| Answer» B. Multiplication of past samples | |
| 5. |
Linear predictive coding system models the vocal tract as __________ linear filter. |
| A. | Pole and zero |
| B. | All zero |
| C. | All pole |
| D. | No pole |
| Answer» D. No pole | |
| 6. |
WHICH_OF_THE_FOLLOWING_LPC_PRODUCES_A_BUZZY_TWANG_IN_THE_SYNTHESIZED_SPEECH??$ |
| A. | Multiple excited LPC |
| B. | Residual excited LPC |
| C. | LPC Vocoders |
| D. | Code excited LPC |
| Answer» D. Code excited LPC | |
| 7. |
Multipulse excited LPC requires pitch detection.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
The_problem_of_buzzy_twang_in_synthesized_speech_is_mitigated_by_multipulse_excited_LPC_or_code_excited_LPC._State_whether_True_or_False.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which of the following LPC uses two sources at the receiver? |
| A. | Multiple excited LPC |
| B. | Residual excited LPC |
| C. | LPC Vocoders |
| D. | Code excited LPC |
| Answer» D. Code excited LPC | |
| 10. |
Which of the non-linear transform is generally used to improve the coding of reflection coefficient? |
| A. | Long area ratio transform |
| B. | Mutual information |
| C. | Least square |
| D. | Interpolation |
| Answer» B. Mutual information | |
| 11. |
How many past samples are used by linear predictive coders to estimate present sample? |
| A. | 100-150 |
| B. | 10-15 |
| C. | 1 |
| D. | 1000-1100 |
| Answer» C. 1 | |
| 12. |
Which of the following LPC uses code book? |
| A. | Multiple excited LPC |
| B. | Residual excited LPC |
| C. | LPC Vocoders |
| D. | Code excited LPC |
| Answer» E. | |
| 13. |
Linear predictive vocoders use _____ to estimate present sample. |
| A. | Weighted sum of past samples |
| B. | Multiplication of past samples |
| C. | One past sample |
| D. | Do not use past samples |
| Answer» B. Multiplication of past samples | |
| 14. |
Linear predictive coding system models the vocal tract as _____ linear filter. |
| A. | Pole and zero |
| B. | All zero |
| C. | All pole |
| D. | No pole |
| Answer» D. No pole | |
| 15. |
Linear predictive coders are computationally simple. |
| A. | True |
| B. | False |
| Answer» C. | |
| 16. |
Linear predictive coders belong to _______ domain class of vocoders. |
| A. | Time |
| B. | Frequency |
| C. | Direct |
| D. | Indirect |
| Answer» B. Frequency | |