The sound had come from a speaker hidden there.
He realized that soft music was purring from speakers hidden somewhere above his head.
A wall panel unit controls speakers hidden throughout the house.
One of his songs came booming out across the lake from huge speakers hidden in a house and a barn.
Soft music played through speakers hidden within the electrical and water conduits.
Hecate's feminine voice tinkled through speakers hidden within the rock walls.
She spoke, her voice filling the vast room from scores of speakers hidden in the roofbeams.
Reading by the pool was activity enough for us, serenaded by music from small speakers hidden in the ground foliage.
Theme-appropriate music flowed from speakers hidden in towering redwood trees.
Outside, patriotic music wafted from speakers hidden in the bushes.