MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
Cepstrum vocoder uses __________ |
| A. | Wavelet transform |
| B. | Inverse wavelet transform |
| C. | Cosine transform |
| D. | Inverse Fourier transform |
| Answer» E. | |
| 2. |
________ is often called the formant of the speech signal. |
| A. | Pitch frequency |
| B. | Voice pitch |
| C. | Pole frequency |
| D. | Central frequency |
| Answer» D. Central frequency | |
| 3. |
Vocoders are simple than the waveform coders. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Vocoders __________ the voice at the receiver. |
| A. | Analyse |
| B. | Synthesize |
| C. | Modulate |
| D. | Evaluate |
| Answer» C. Modulate | |
| 5. |
FORMANT_VOCODERS_USE_LARGE_NUMBER_OF_CONTROL_SIGNALS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Cepstrum vocoder uses _____$ |
| A. | Wavelet transform |
| B. | Inverse wavelet transform |
| C. | Cosine transform |
| D. | Inverse Fourier transform |
| Answer» E. | |
| 7. |
________ is often called the formant of the speech signal? |
| A. | Pitch frequency |
| B. | Voice pitch |
| C. | Pole frequency |
| D. | Central frequency |
| Answer» D. Central frequency | |
| 8. |
Channel vocoders are the time domain vocoders. State whether True or False. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Speech signal can be categorised in _____ and ______ |
| A. | Voiced, unvoiced |
| B. | Active, passive |
| C. | Direct, indirect |
| D. | Balanced, unbalanced |
| Answer» B. Active, passive | |
| 10. |
Which of the following pronunciations lead to voiced sound? |
| A. | ‘f’ |
| B. | ‘s’ |
| C. | ‘sh’ |
| D. | ‘m’ |
| Answer» E. | |
| 11. |
Which of the following is not a vocoding system? |
| A. | Linear predictive coder |
| B. | Channel vocoder |
| C. | Waveform coder |
| D. | Formant vocoder |
| Answer» D. Formant vocoder | |
| 12. |
Vocoders are simple than the waveform coders. State whether True or False. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Vocoders _____ the voice at the receiver. |
| A. | Analyse |
| B. | Synthesize |
| C. | Modulate |
| D. | Evaluate |
| Answer» C. Modulate | |
| 14. |
Vocoders analyse the speech signals at ______ |
| A. | Transmitter |
| B. | Receiver |
| C. | Channel |
| D. | IF Filter |
| Answer» B. Receiver | |