What is an FM system primarily used for?

An FM system is primarily used to improve the signal-to-noise ratio using radio waves. This technology enhances communication in environments where background noise is present, which can significantly interfere with a listener's ability to hear speech. FM systems work by transmitting audio signals directly from a microphone worn by the speaker to a receiver worn by the listener, using frequency modulation. This direct transmission helps ensure that the listener receives a clearer and more intelligible signal, minimizing the impact of ambient noise.

The effectiveness of FM systems in educational settings or public speaking environments exemplifies their primary function of maintaining audio clarity, especially for individuals with hearing impairments. By optimizing the signal-to-noise ratio, FM systems allow users to focus on the target audio, making it significantly easier to understand speech in challenging listening environments.