A method and apparatus for indicating emotional stress in speech by detecting the presence of vibratto or rapid modulation and weighting the vibratto with a detected peak value of a preselected frequency band.

A method and apparatus for indicating emotional stress in speech by normalizing the ratio of peak amplitude signals in two or more frequency regions of a single response. Normalization is achieved by comparing all subsequent ratios with a selected stored ratio of the same speaker.

A periodic signal detector is disclosed which may be incorporated to an antage in a voice actuated communication system. It comprises a series connected low pass filter, limiter, and bistable multivibrator, the outputs of the latter of which are respectively connected to the inputs of a pair of ramp generators. A differential comparator detects the difference in the output voltage from said pair of ramp generators and uses it to timely trigger a first monostable multivibrator. A shift register a...

An electronic hand-held, talking learning aid is disclosed. The learning aid includes a MOS speech synthesizer chip having an active surface area on the order of 45,000 square mils. The disclosed speech synthesizer chip includes a digital lattice filter, a voiced/unvoiced excitation circuit, a speech parameter interpolator, an input parameter decoder, a digital-to-analog converter and associated timing circuits. The learning aid is also provided with a microprocessor which functions as a control...

A vocal indicating device for a copying machine includes a speech synthesizer which says "Please wait a minute" if logic-control circuitry detects the machine in Wait-Mode (e.g., warmup) for more than 5 seconds.

A system for announcing operating conditions of a plant includes an identifying unit identifying plant site operating conditions on the basis of information signals indicative of the operating conditions at plate sites at the plant site, a voice message signal generating unit determining plant site operating instruction signals on the basis of the identified plant operating conditions and converting the determined instruction signals into corresponding voice message signals, a voice message sign...

A typing station at a remote location having a central processing unit and a terminal is interconnected with an information storage and retrieval system via a single telephone line. A typist at the remote location depresses a foot pedal associated with the central processing unit and controls shared transmission of audio messages and digital data between the typing station and the information storage and retrieval system. When the foot pedal is depressed, audio information is transmitted from th...

In a talking calculator, a condition memory (F1-F4) causes selection of one kind of voice information sound quality, such as male or female, whereby, for example, a male voice announces positive numbers and a female voice announces negative numbers.

Disclosed is a speech synthesizer integrated circuit as a preferred embodiment of the present invention, which is characterized in that; Using one chip LSI, it implements the fundamental controls for the speech synthesizing operations, for example, and fundamental controls for the key input and display operations (corresponding to the functions usually performed by any of the conventional microprocessors). The preferred embodiment of the present invention has made it possible to realize an extre...

A calculator system with visual and speech outputs uses a single monolithic LSI chip which includes: a single ROM containing program instructions for both system and speech control, as well as data for synthesizing speech; a central controller which calculates both inputted data and program execution data to control the system, and a RAM used by the central controller in manipulating data.