What are two steps that are taken when a router converts a voice signal from analog to digital form？（）
A: sampling
B: packetization
C: quantization
D: serialization
A: sampling
B: packetization
C: quantization
D: serialization
举一反三
- What is the term that is used to describe the process of converting a signal from digital to analog？（） A: packetization B: quantization C: decoding D: sampling
- The quantization process<br/>____. A: converts the<br/>sample-and-hold output to binary code B: converts a sample impulse<br/>to a level C: converts a sequence of<br/>binary codes to a reconstructed analog signal D: filters out unwanted<br/>frequencies before sampling takes place
- Generally, an analog signal can be reconstructed more accurately with A: more quantization levels B: fewer quantization levels C: a higher sampling frequency D: a lower sampling frequency E: either answer (a) or (c)
- Generally,<br/>an analog signal can be reconstructed more accurately with ( ) A: more<br/>quantization levels B: fewer<br/>quantization levels C: a<br/>higher sampling frequency D: a<br/>lower sampling frequency
- Generally speaking, digital transmission can get higher signal quality than analog transmission, because? A: The repeater can regenerate digital pulses to remove signal distortion, and the amplifier amplifies the analog signal as well as the analog signal distorted B: Digital signals are smaller than analog signals and are not prone to distortion C: Analog signals are continuous and are not prone to distortion D: Digital signal is easier to sample than analog signal