A monitoring apparatus for training devices has control switches for selecting audio signals output from a plurality of respective training devices arranged in columns and rows and for obtaining an output signal to be monitored, scanning direction selectors actuable for selecting a scanning direction from the directions of the columns and rows, respectively, and coordinate step advancing devices operable in one of the column and row directions in response to actuation of the respective scanning direction selector for causing the control switches to successively select one-by-one the audio signals output from the training devices which are successively arranged in the selected column or row scanning direction.
A piezoelectric resilient arm contacts a projected object and establishes a reference relative to sensitivity means and differential detector means including feedback coupled amplifier means which operates in cooperation with a balanced square wave generator means for producing a switched output upon detecting motion. An alarm signal is produced which has a duration related to the rate of change of movement of the piezoelectric resilient arm. Programmable delay means appropriately enables an annunciator and/or wireless communication link to a system controller.
A large number of keys arranged in a matrix are provided on the keyboard (KB) of a host computer. Of these keys, keys (K10, . . . , K15, . . . ), located at positions corresponding to Learning terminals in a classroom, are assigned to the respective learning terminals.
Individual training stations are able to record and play back a student's own pronunciations as well as to reproduce the recorded pronunciations of the fellow students and of prerecorded voice teaching aids by means of a digital memory and controller.
An interactive speech pronunciation system for teaching pronunciation and reducing the accent of a user includes a memory for storing a plurality of presequenced lessons, an input interface for allowing a user to select predetermined ones of the presequenced lessons, a processor for executing program steps corresponding to the lessons selected by the user, and a monitor for displaying visual indicators to the user of the system. The speech pronunciation system further includes an audio input device, for recording sounds spoken by the user, an audio output device for transducing signals fed thereto to pre-recorded sounds and a speech processor for providing stored signals to the audio output device.
