Low-power FM transmitters provided audio for in-car speakers at drive-in theaters. Patrons tuned their car radios to a designated frequency to hear the movie’s soundtrack. This technology offered a personalized listening experience, eliminating the need for large, often problematic, outdoor speakers.
This individualized sound system enhanced the movie-going experience by providing clear, adjustable audio directly to each vehicle, improving clarity and immersion. Historically, this technology was crucial for the drive-in experience, contributing significantly to its popularity during its heyday. The shift from communal speakers to individualized audio marked a turning point, offering privacy and customized volume control.