公开(公告)号：US20230142711A1

公开(公告)日：2023-05-11

申请号：US18096655

申请日：2023-01-13

Applicant: Staton Techiya LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/0388 ,  H04R3/00

CPC classification number: G10L21/0388 ,  H04R3/00 ,  H04R1/028

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US20230386499A1

公开(公告)日：2023-11-30

申请号：US18219077

申请日：2023-07-06

Applicant: Staton Techiya LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/038

CPC classification number: G10L21/038

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the original an input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US11605395B2

公开(公告)日：2023-03-14

申请号：US16783624

申请日：2020-02-06

Applicant: Staton Techiya LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L15/30 ,  G10L21/0388 ,  H04R3/00 ,  H04R1/02 ,  H04R1/10 ,  H04R5/033

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US20220358947A1

公开(公告)日：2022-11-10

申请号：US17872851

申请日：2022-07-25

Applicant: Staton Techiya LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/038

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping ”(or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the original an input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US10043535B2

公开(公告)日：2018-08-07

申请号：US14155724

申请日：2014-01-15

Applicant: Staton Techiya, LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/00 ,  G10L21/0388 ,  H04R3/00 ,  H04R1/02 ,  H04R1/10 ,  H04R5/033

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US11741985B2

公开(公告)日：2023-08-29

申请号：US17872851

申请日：2022-07-25

Applicant: Staton Techiya LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/00 ,  G10L21/038

CPC classification number: G10L21/038

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping”(or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the original an input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US20180336912A1

公开(公告)日：2018-11-22

申请号：US16047661

申请日：2018-07-27

Applicant: Staton Techiya, LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/038

CPC classification number: G10L21/038

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the original an input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US11551704B2

公开(公告)日：2023-01-10

申请号：US16804668

申请日：2020-02-28

Applicant: Staton Techiya LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/00 ,  G10L21/038

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the original an input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US20200176013A1

公开(公告)日：2020-06-04

申请号：US16783624

申请日：2020-02-06

Applicant: Staton Techiya LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/0388 ,  H04R3/00

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the input narrowband audio signal. Other embodiments are disclosed.

公开(公告)号：US20180336914A1

公开(公告)日：2018-11-22

申请号：US16047612

申请日：2018-07-27

Applicant: Staton Techiya, LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/0388 ,  H04R3/00 ,  H04R5/033 ,  H04R1/02 ,  H04R1/10

CPC classification number: G10L21/0388 ,  H04R1/028 ,  H04R1/1083 ,  H04R3/00 ,  H04R5/033 ,  H04R2420/07

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the input narrowband audio signal. Other embodiments are disclosed.