"Quite correct," he said, in his most mechanical tone.

His voice took on the mechanical tones of a dozen science fiction movie computers.

Hugh spoke in mechanical tones, but his human eye glowed bright with compassion.

Taryn asked, and the mechanical tones could not disguise the cold fury in his voice.

He spoke in the mechanical tones of a nightmare.

They speak in a cold, mechanical, female tone of voice.

To answer your question," he said in that same buzzy, mechanical tone, "we are the Group.

The night watchman said, "Good morning, sir," in a mechanical tone, different from his usual heartiness.

Chet gave a laugh, nervous, despite its mechanical tone.

There is a mechanical tone about them, as if they had been elaborated and put together by some music-writing machine.