1, excellent sound quality

Digital wireless systems provide high quality, transparent audio. This is largely because digital wireless systems do not have a "compression expander", a circuit that reduces noise and maximizes dynamic range for all analog wireless microphone systems. The audio signal is first compressed via the transmitter to adapt to the limited dynamic range of the FM transmission and then spread in the receiver.

The process of compression and expansion, although relatively small in most good analog systems, there are some artificially audible sounds (like a wheezing effect) that make the sound of a wireless microphone slightly different from that of a wired microphone. Since the use of digital wireless microphones, the transmission of audio signals no longer requires compression and expansion, and the received signals restore the precise characteristics of the original audio.

2. Compressor (variable)

A digital wireless system that achieves the entire audible audio range with a flat frequency response curve.

The digital wireless system converts the analog audio into a digital signal by modulating the radio carrier in several steps. The digital audio signal arrives at the receiver without being affected by electromagnetic noise. Any RF noise below the threshold will not affect the audio quality. The receiver simply ignores anything that is not 1 or 0. All others are discarded. Only digital signals will be identified.