Abstract:
The present invention is a speech encoding technique useful in low data rate speech. Spoken input is analyzed to determine its basic phonological linguistic units and syllables. The pitch track for each syllable is compared with each of a predetermined set of pitch patterns. A pitch pattern forming the best match to the actual pitch track is selected for each syllable. Phonological linguistic unit indicia and pitch pattern indicia are transmitted to a speech synthesis apparatus. This synthesis apparatus matches the pitch pattern indicia to syllable groupings of the phonological linguistic unit indicia. During speech synthesis, sounds are produced corresponding to the phonological linguistic unit indicia with their primary pitch controlled by the pitch pattern indicia of the corresponding syllable. This achieves some measure of approximation to the primary pitch of the original spoken input at a low data rate. In the preferred embodiment, each pitch pattern includes an initial pitch slope, which may be zero indicating no change in pitch, a final pitch slope and a turning point between these two slopes.
Abstract:
Speech is analyzed for phonological linguistic units (phonemes or allophones), along with their duration pattern and pitch pattern contour as a group or string of a syllable. The patterns are encoded as the best-match pattern in a set of prestored standard patterns. This data is transmitted to a synthesizer to help in the intonation reconstruction of speech.
Abstract:
A high-speed tire repair tool includes a locating unit having an outer tube and a locating bar; a buffer element having a head and an inner tube connected to the head and received in the outer tube with the locating bar fixed to the inner tube at a predetermined position; a hollow pipe mounted in the outer tube, the inner tube, and the head; and a hole plugging assembly mounted to the head and connected to the hollow pipe, and having an abrasive element and a plugging strip. When the hollow pipe is driven to rotate and the outer tube is moved forward by a driving unit, the hole plugging assembly connected to a front end of the hollow pipe is quickly driven into a hole on a high-speed tire for the abrasive element to trim the hole and the plugging strip to air-tightly plug the hole.
Abstract:
A high-speed tire repair tool includes a locating unit having an outer tube and a locating bar; a buffer element having a head and an inner tube connected to the head and received in the outer tube with the locating bar fixed to the inner tube at a predetermined position; a hollow pipe mounted in the outer tube, the inner tube, and the head; and a hole plugging assembly mounted to the head and connected to the hollow pipe, and having an abrasive element and a plugging strip. When the hollow pipe is driven to rotate and the outer tube is moved forward by a driving unit, the hole plugging assembly connected to a front end of the hollow pipe is quickly driven into a hole on a high-speed tire for the abrasive element to trim the hole and the plugging strip to air-tightly plug the hole.
Abstract:
Method and apparatus for converting voice characteristics of synthesized speech from a single applied source of synthesized speech in a manner obtaining modified voice characteristics pertaining to the apparent age and/or sex of the speaker. The apparatus is capable of altering the voice characteristics of synthesized speech to obtain modified voice sounds simulating child-like, teenage, adult, aged and sexual preference characteristics by control of vocal track parameters including pitch period, vocal tract model, and speech data rate. A source of synthesized speech having a predetermined pitch period, a predetermined vocal tract model, and a predetermined speech rate is separated into the respective speech parameters. The values of pitch, the speech data frame length, and the speech data rate are then varied in a preselected manner to modify the voice characteristics of the synthesized speech from the source thereof. Thereafter, the changed speech data parameters are re-combined into a modified synthesized speech data format having different voice characteristics with respect to the synthesized speech from the source, and an audio signal representative of human speech is generated from the modified synthesized speech data format from which audible synthesized speech may be generated.