beat-beat

Beneath them, the mono's slo-trans engines continued to cycle up - mat beat-beat - beat which Susannah did not so much hear as feel in the hinges of her jaw, the hollows of her temples, the pulse-points of her wrists.

Wizard and Glass King, Stephen 1997

Hiku was in no way reluctant to venture onto the bridge, but went on bravely enough, the ring of his hoofs sounding a hollow beat-beat which somehow set me to listening, as if I expected a response from the building ahead.

The Crystal Gryphon Norton, Andre 1972

Boom-boom ... a second heavy beat-beat ... then a clangor with a swelling echo.

The Defiant Agents Andre Norton 1958

They heard the muffled beat-beat of feet running through the trenches toward the front.

Shelled by an Unseen Foe James Fiske

As they marched, fifty voices rose and fell wildly in a stirring chant, exciting and terrible as the beat-beat of a tom-tom, sometimes a shout of barbaric triumph, sometimes a mourning wail.

The Golden Silence 1901