The Speech Research Laboratory at Indiana University has extensive hardware and software for presenting complex acoustic signals to subjects and recording their responses in real-time. Three computer-controlled laboratories are used for perceptual experiments with human observers. These labs are equipped with audio-visual capabilities for running multiple observers in real-time experiments. The labs also have several specialized state-of-the-art workstations as well as a series of microcomputers that are used for speech analysis and synthesis and computational studies of linguistic databases.