Final answer:
Demodulation is the process used to receive transmitted data and convert it into a readable message.
Step-by-step explanation:
The process used to receive transmitted data and convert it into a readable message is demodulation. Demodulation is the reverse process of modulation, where the original data is extracted from the modulated carrier signal. In the case of radio communication, for example, demodulation is used to extract the audio signal from the frequency modulated (FM) carrier wave.