A real time spectrograph with implications for speech training for the deaf

A real-time speech spectrograph has been developed which is practical for clinical use. It produces and stores a frequency-time-intensity display on a video monitor while the sound is being spoken. The display closely resembles a conventional, broad-band spectrogram in time, frequency and grey scale resolution. Preliminary evaluations have been made to show its usefulness 1. as an aid to the therapist in diagnosis and communication of concepts, and 2. for student drill relatively independent from the therapist. These results suggest that the instrument has considerable potential for training speech production with deaf.