OK, I understand that a gamma ray is just an electromagnetic wave, and so a gamma particle could be a photon, but somehow I think that the author here is not being that sophisticated:
Appliance makers believe more and better chimes, alerts, and jingles make for happier customers. Are they right?
An early example of a device that communicated data through sound was the Geiger counter. Invented in 1908 to measure ionizing radiation, it makes an audible snap to signal the presence of alpha, beta, or gamma particles.