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US 9,754,580 B2Granted
System and method for extracting and using prosody features
AssigneeTechnologies for Voice Interface
InventorsDanny Lionel Weissberg, Stas Tiomkin
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AssigneeTechnologies for Voice Interface
InventorsDanny Lionel Weissberg, Stas Tiomkin
Estimating the term…
A system for carrying out voice pattern recognition and a method for achieving same. The system includes an arrangement for acquiring an input voice, a signal processing library for extracting acoustic and prosodic features of the acquired voice, a database for storing a recognition dictionary, at least one instance of a prosody detector for carrying out a prosody detection process on extracted respective prosodic features, communicating with an end user application for applying control thereto.
A method for applying voice pattern recognition, implementable on an input voice, said method comprising the steps of:
An automated assistant for speech disabled people, operating on a computing device, said assistant comprising:
Dependencies are inferred from the claim text.
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Speech recognition: feature extraction for speech recognition; Selection of recognition unit
Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice: training
Speech classification or search: using dynamic programming techniques, e.g. dynamic time warping [DTW]
Speech recognition: procedures used during a speech recognition process, e.g. man-machine dialogue
About 9 years of term left · ends 12 Oct 2035 (estimated)
This application claims priority from the following US. Provisional Patent Applications:
1. US. Provisional Patent application No. 61/810,293 entitled “Platform, System and method for Intonation Processing”, filed on Apr. 10, 2013.
2. US. Provisional Patent application No. 61/875,072 entitled “Platform, System and method for Intonation Processing”, filed on Sep. 8, 2013.
The principles and operation of the system and method according to the present invention may be better understood with reference to the drawings, and the following description, it being understood that these drawings are given or illustrative purposes only and not meant to be limiting, wherein:
FIG. 1 is a schematic block diagram illustrating a prior art speech recognition system using speaker-dependent approach.
FIG. 2 is a block diagram showing the configuration of a voice pattern recognition and prosodic feature extraction system of the present invention.
Embodiments of the present invention are described below. In the interest of clarity, not all features/components of an actual implementation are necessarily described.
FIG. 1 schematizes prior art speech recognition system using speaker-dependent approach. A voice source 10, typically of a person, generates a sound that is propagated through air 15 and received by microphone 20. The voice signal is converted by the microphone 20 to an electronic signal representing the received human speech, which is sampled and transferred over the connection 25 to a voice pattern classifier engine 40, which implements algorithms for identifying the voice content, facilitating its transformation to text. The voice pattern classifier engine (VPCE) 40 is coupled via connection 45 to database 50 (local or remote), for storing and/or retrieving configuration and other information, such as voice samples associated with specific persons or users. The VPCE uses algorithms, for example by supplying the recognized information in the speech to the end user application 55. The end user application 55 may be internal or external application which may control the total system operation and commonly also is in charge of the user interface, and for example may include aspects such as enterprise management or voice control over a game.
The system shown in FIG. 1 is a prior art system, operative in two distinct stages: