How can an analog signal be transmitted to digital and back to analog again?
An analog signal can be converted to a digital signal through a process called sampling and quantization. This involves taking samples of the analog signal at regular intervals and assigning numerical values to these samples. The digital signal can then be transmitted using various digital communication methods such as Ethernet, fiber optics, or wireless transmission.
To convert the digital signal back to analog, a process called digital-to-analog conversion is used. This involves taking the numerical values from the digital signal and reconstructing an analog signal by converting the numerical values back to their original voltage levels. This analog signal can then be used for playback or further processing as needed.