Patents by Inventor Stefan Sullivan

Stefan Sullivan 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: 11900904
    Abstract: Digital signal processing and machine learning techniques can be employed in a vocal capture and performance social network to computationally generate vocal pitch tracks from a collection of vocal performances captured against a common temporal baseline such as a backing track or an original performance by a popularizing artist. In this way, crowd-sourced pitch tracks may be generated and distributed for use in subsequent karaoke-style vocal audio captures or other applications. Large numbers of performances of a song can be used to generate a pitch track. Computationally determined pitch trackings from individual audio signal encodings of the crowd-sourced vocal performance set are aggregated and processed as an observation sequence of a trained Hidden Markov Model (HMM) or other statistical model to produce an output pitch track.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: February 13, 2024
    Assignee: Smule, Inc.
    Inventors: Stefan Sullivan, John Shimmin, Dean Schaffer, Perry R. Cook
  • Publication number: 20230005463
    Abstract: Digital signal processing and machine learning techniques can be employed in a vocal capture and performance social network to computationally generate vocal pitch tracks from a collection of vocal performances captured against a common temporal baseline such as a backing track or an original performance by a popularizing artist. In this way, crowd-sourced pitch tracks may be generated and distributed for use in subsequent karaoke-style vocal audio captures or other applications. Large numbers of performances of a song can be used to generate a pitch track. Computationally determined pitch trackings from individual audio signal encodings of the crowd-sourced vocal performance set are aggregated and processed as an observation sequence of a trained Hidden Markov Model (HMM) or other statistical model to produce an output pitch track.
    Type: Application
    Filed: February 14, 2022
    Publication date: January 5, 2023
    Inventors: Stefan SULLIVAN, John SHIMMIN, Dean SCHAFFER, Perry R. COOK
  • Publication number: 20220222294
    Abstract: Disclosed herein are computer-implemented method, system, and computer-readable storage-medium embodiments for implementing densification in music search. An embodiment includes processor(s) configured to obtain a first feature set extracted from a first audio recording, and a first fingerprint of the first audio recording; and evaluate, using at least one first machine-learning algorithm, a similarity index corresponding to the first audio recording with respect to at least one second audio recording, considering: the first feature set extracted from the first audio recording, and a second feature set extracted from the at least one second audio recording; or the first fingerprint of the first audio recording, and at least one second fingerprint of the at least one second audio recording.
    Type: Application
    Filed: February 22, 2021
    Publication date: July 14, 2022
    Inventors: Cheng-i WANG, Stefan SULLIVAN, David Adam STEINWEDEL, George TZANETAKIS
  • Patent number: 11250826
    Abstract: Digital signal processing and machine learning techniques can be employed in a vocal capture and performance social network to computationally generate vocal pitch tracks from a collection of vocal performances captured against a common temporal baseline such as a backing track or an original performance by a popularizing artist. In this way, crowd-sourced pitch tracks may be generated and distributed for use in subsequent karaoke-style vocal audio captures or other applications. Large numbers of performances of a song can be used to generate a pitch track. Computationally determined pitch trackings from individual audio signal encodings of the crowd-sourced vocal performance set are aggregated and processed as an observation sequence of a trained Hidden Markov Model (HMM) or other statistical model to produce an output pitch track.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: February 15, 2022
    Assignee: Smule, Inc.
    Inventors: Stefan Sullivan, John Shimmin, Dean Schaffer, Perry R. Cook
  • Publication number: 20200312290
    Abstract: Digital signal processing and machine learning techniques can be employed in a vocal capture and performance social network to computationally generate vocal pitch tracks from a collection of vocal performances captured against a common temporal baseline such as a backing track or an original performance by a popularizing artist. In this way, crowd-sourced pitch tracks may be generated and distributed for use in subsequent karaoke-style vocal audio captures or other applications. Large numbers of performances of a song can be used to generate a pitch track. Computationally determined pitch trackings from individual audio signal encodings of the crowd-sourced vocal performance set are aggregated and processed as an observation sequence of a trained Hidden Markov Model (HMM) or other statistical model to produce an output pitch track.
    Type: Application
    Filed: October 28, 2019
    Publication date: October 1, 2020
    Inventors: Stefan Sullivan, John Shimmin, Dean Schaffer, Perry R. Cook
  • Patent number: 10460711
    Abstract: Digital signal processing and machine learning techniques can be employed in a vocal capture and performance social network to computationally generate vocal pitch tracks from a collection of vocal performances captured against a common temporal baseline such as a backing track or an original performance by a popularizing artist. In this way, crowd-sourced pitch tracks may be generated and distributed for use in subsequent karaoke-style vocal audio captures or other applications. Large numbers of performances of a song can be used to generate a pitch track. Computationally determined pitch trackings from individual audio signal encodings of the crowd-sourced vocal performance set are aggregated and processed as an observation sequence of a trained Hidden Markov Model (HMM) or other statistical model to produce an output pitch track.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: October 29, 2019
    Assignee: Smule, Inc.
    Inventors: Stefan Sullivan, John Shimmin, Dean Schaffer, Perry R. Cook
  • Publication number: 20180018949
    Abstract: Digital signal processing and machine learning techniques can be employed in a vocal capture and performance social network to computationally generate vocal pitch tracks from a collection of vocal performances captured against a common temporal baseline such as a backing track or an original performance by a popularizing artist. In this way, crowd-sourced pitch tracks may be generated and distributed for use in subsequent karaoke-style vocal audio captures or other applications. Large numbers of performances of a song can be used to generate a pitch track. Computationally determined pitch trackings from individual audio signal encodings of the crowd-sourced vocal performance set are aggregated and processed as an observation sequence of a trained Hidden Markov Model (HMM) or other statistical model to produce an output pitch track.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 18, 2018
    Inventors: Stefan Sullivan, John Shimmin, Dean Schaffer, Perry R. Cook