Patents Assigned to VoiceAge EVS LLC
  • Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates
    Patent number: 11721349
    Abstract: Methods, an encoder and a decoder are configured for transition between frames with different internal sampling rates. Linear predictive (LP) filter parameters are converted from a sampling rate S1 to a sampling rate S2. A power spectrum of a LP synthesis filter is computed, at the sampling rate S1, using the LP filter parameters. The power spectrum of the LP synthesis filter is modified to convert it from the sampling rate S1 to the sampling rate S2. The modified power spectrum of the LP synthesis filter is inverse transformed to determine autocorrelations of the LP synthesis filter at the sampling rate S2. The autocorrelations are used to compute the LP filter parameters at the sampling rate S2.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: August 8, 2023
    Assignee: VOICEAGE EVS LLC
    Inventors: Redwan Salami, Vaclav Eksler
  • Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates
    Patent number: 11282530
    Abstract: Methods, an encoder and a decoder are configured for transition between frames with different internal sampling rates. Linear predictive (LP) filter parameters are converted from a sampling rate S1 to a sampling rate S2. A power spectrum of a LP synthesis filter is computed, at the sampling rate S1, using the LP filter parameters. The power spectrum of the LP synthesis filter is modified to convert it from the sampling rate S1 to the sampling rate S2. The modified power spectrum of the LP synthesis filter is inverse transformed to determine autocorrelations of the LP synthesis filter at the sampling rate S2. The autocorrelations are used to compute the LP filter parameters at the sampling rate S2.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: March 22, 2022
    Assignee: VOICEAGE EVS LLC
    Inventors: Redwan Salami, Vaclav Eksler
  • Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates
    Patent number: 10468045
    Abstract: Methods, an encoder and a decoder are configured for transition between frames with different internal sampling rates. Linear predictive (LP) filter parameters are converted from a sampling rate S1 to a sampling rate S2. A power spectrum of a LP synthesis filter is computed, at the sampling rate S1, using the LP filter parameters. The power spectrum of the LP synthesis filter is modified to convert it from the sampling rate S1 to the sampling rate S2. The modified power spectrum of the LP synthesis filter is inverse transformed to determine autocorrelations of the LP synthesis filter at the sampling rate S2. The autocorrelations are used to compute the LP filter parameters at the sampling rate S2.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: November 5, 2019
    Assignee: VoiceAge EVS LLC
    Inventors: Redwan Salami, Vaclav Eksler
  • Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates
    Patent number: 10431233
    Abstract: Methods, an encoder and a decoder are configured for transition between frames with different internal sampling rates. Linear predictive (LP) filter parameters are converted from a sampling rate S1 to a sampling rate S2. A power spectrum of a LP synthesis filter is computed, at the sampling rate S1, using the LP filter parameters. The power spectrum of the LP synthesis filter is modified to convert it from the sampling rate S1 to the sampling rate S2. The modified power spectrum of the LP synthesis filter is inverse transformed to determine autocorrelations of the LP synthesis filter at the sampling rate S2. The autocorrelations are used to compute the LP filter parameters at the sampling rate S2.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: October 1, 2019
    Assignee: VoiceAge EVS LLC
    Inventors: Redwan Salami, Vaclav Eksler