Patents by Inventor Nishant Chandra

Nishant Chandra has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10453442
    Abstract: A computer-implemented method for automatically analyzing, predicting, and/or modifying acoustic units of prosodic human speech utterances for use in speech synthesis or speech recognition. Possible steps include: initiating analysis of acoustic wave data representing the human speech utterances, via the phase state of the acoustic wave data; using one or more phase state defined acoustic wave metrics as common elements for analyzing, and optionally modifying, pitch, amplitude, duration, and other measurable acoustic parameters of the acoustic wave data, at predetermined time intervals; analyzing acoustic wave data representing a selected acoustic unit to determine the phase state of the acoustic unit; and analyzing the acoustic wave data representing the selected acoustic unit to determine at least one acoustic parameter of the acoustic unit with reference to the determined phase state of the selected acoustic unit. Also included are systems for implementing the described and related methods.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: October 22, 2019
    Assignee: LESSAC TECHNOLOGIES, INC.
    Inventors: Nishant Chandra, Reiner Wilhelms-Tricarico, Rattima Nitisaroj, Brian Mottershead, Gary A. Marple, John B. Reichenbach
  • Publication number: 20170011733
    Abstract: A computer-implemented method for automatically analyzing, predicting, and/or modifying acoustic units of prosodic human speech utterances for use in speech synthesis or speech recognition. Possible steps include: initiating analysis of acoustic wave data representing the human speech utterances, via the phase state of the acoustic wave data; using one or more phase state defined acoustic wave metrics as common elements for analyzing, and optionally modifying, pitch, amplitude, duration, and other measurable acoustic parameters of the acoustic wave data, at predetermined time intervals; analyzing acoustic wave data representing a selected acoustic unit to determine the phase state of the acoustic unit; and analyzing the acoustic wave data representing the selected acoustic unit to determine at least one acoustic parameter of the acoustic unit with reference to the determined phase state of the selected acoustic unit. Also included are systems for implementing the described and related methods.
    Type: Application
    Filed: September 26, 2016
    Publication date: January 12, 2017
    Inventors: Nishant CHANDRA, Reiner WILHELMS-TRICARICO, Rattima NITISAROJ, Brian MOTTERSHEAD, Gary A. MARPLE, John B. REICHENBACH
  • Patent number: 8401849
    Abstract: A computer-implemented method for automatically analyzing, predicting, and/or modifying acoustic units of prosodic human speech utterances for use in speech synthesis or speech recognition. Possible steps include: initiating analysis of acoustic wave data representing the human speech utterances, via the phase state of the acoustic wave data; using one or more phase state defined acoustic wave metrics as common elements for analyzing, and optionally modifying, pitch, amplitude, duration, and other measurable acoustic parameters of the acoustic wave data, at predetermined time intervals; analyzing acoustic wave data representing a selected acoustic unit to determine the phase state of the acoustic unit; and analyzing the acoustic wave data representing the selected acoustic unit to determine at least one acoustic parameter of the acoustic unit with reference to the determined phase state of the selected acoustic unit. Also included are systems for implementing the described and related methods.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: March 19, 2013
    Assignee: Lessac Technologies, Inc.
    Inventors: Nishant Chandra, Reiner Wilhelms-Tricarico, Rattima Nitisaroj, Brian Mottershead, Gary A. Marple, John B. Reichenbach
  • Patent number: 8219398
    Abstract: Disclosed are novel embodiments of a speech synthesizer and speech synthesis method for generating human-like speech wherein a speech signal can be generated by concatenation from phonemes stored in a phoneme database. Wavelet transforms and interpolation between frames can be employed to effect smooth morphological fusion of adjacent phonemes in the output signal. The phonemes may have one prosody or set of prosody characteristics and one or more alternative prosodies may be created by applying prosody modification parameters to the phonemes from a differential prosody database. Preferred embodiments can provide fast, resource-efficient speech synthesis with an appealing musical or rhythmic output in a desired prosody style such as reportorial or human interest.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: July 10, 2012
    Assignee: Lessac Technologies, Inc.
    Inventors: Gary Marple, Nishant Chandra
  • Patent number: 8175879
    Abstract: The inventive system can automatically annotate the relationship of text and acoustic units for the purposes of: (a) predicting how the text is to be pronounced as expressively synthesized speech, and (b) improving the proportion of expressively uttered speech as correctly identified text representing the speaker's message. The system can automatically annotate text corpora for relationships of uttered speech for a particular speaking style and for acoustic units in terms of context and content of the text to the utterances. The inventive system can use kinesthetically defined expressive speech production phonetics that are recognizable and controllable according to kinesensic feedback principles. In speech synthesis embodiments of the invention, the text annotations can specify how the text is to be expressively pronounced as synthesized speech.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: May 8, 2012
    Assignee: Lessac Technologies, Inc.
    Inventors: Rattima Nitisaroj, Gary Marple, Nishant Chandra
  • Publication number: 20100161327
    Abstract: A computer-implemented method for automatically analyzing, predicting, and/or modifying acoustic units of prosodic human speech utterances for use in speech synthesis or speech recognition. Possible steps include: initiating analysis of acoustic wave data representing the human speech utterances, via the phase state of the acoustic wave data; using one or more phase state defined acoustic wave metrics as common elements for analyzing, and optionally modifying, pitch, amplitude, duration, and other measurable acoustic parameters of the acoustic wave data, at predetermined time intervals; analyzing acoustic wave data representing a selected acoustic unit to determine the phase state of the acoustic unit; and analyzing the acoustic wave data representing the selected acoustic unit to determine at least one acoustic parameter of the acoustic unit with reference to the determined phase state of the selected acoustic unit. Also included are systems for implementing the described and related methods.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 24, 2010
    Inventors: Nishant CHANDRA, Reiner Wilhelms-Tricarico, Rattima Nitisaroj, Brian Mottershead, Gary A. Marple, John B. Reichenbach
  • Publication number: 20090048843
    Abstract: The inventive system can automatically annotate the relationship of text and acoustic units for the purposes of: (a) predicting how the text is to be pronounced as expressively synthesized speech, and (b) improving the proportion of expressively uttered speech as correctly identified text representing the speaker's message. The system can automatically annotate text corpora for relationships of uttered speech for a particular speaking style and for acoustic units in terms of context and content of the text to the utterances. The inventive system can use kinesthetically defined expressive speech production phonetics that are recognizable and controllable according to kinesensic feedback principles. In speech synthesis embodiments of the invention, the text annotations can specify how the text is to be expressively pronounced as synthesized speech.
    Type: Application
    Filed: August 8, 2008
    Publication date: February 19, 2009
    Inventors: Rattima NITISAROJ, Gary Marple, Nishant Chandra
  • Publication number: 20080195391
    Abstract: Disclosed are novel embodiments of a speech synthesizer and speech synthesis method for generating human-like speech wherein a speech signal can be generated by concatenation from phonemes stored in a phoneme database. Wavelet transforms and interpolation between frames can be employed to effect smooth morphological fusion of adjacent phonemes in the output signal. The phonemes may have one prosody or set of prosody characteristics and one or more alternative prosodies may be created by applying prosody modification parameters to the phonemes from a differential prosody database. Preferred embodiments can provide fast, resource-efficient speech synthesis with an appealing musical or rhythmic output in a desired prosody style such as reportorial or human interest.
    Type: Application
    Filed: March 28, 2006
    Publication date: August 14, 2008
    Applicant: LESSAC TECHNOLOGIES, INC.
    Inventors: Gary Marple, Nishant Chandra