公开(公告)号：US10511917B2

公开(公告)日：2019-12-17

申请号：US16289401

申请日：2019-02-28

Applicant: Oticon A/S

Inventor： Anders Højsgaard Thomsen ,  Jan Petersen ,  Jan Mark De Haan

IPC: H04R25/00 ,  H04R29/00 ,  G06F3/16 ,  H03G9/00 ,  H03G9/02

Abstract: An adaptive level estimator for providing a level estimate of an electric input signal representing sound is provided. The adaptive level estimator comprises a first level estimator that provides a first level estimate of the electric input signal in a first number K1 of frequency bands; a second level estimator that provides attack/release time constants associated with a second level estimate of the electric input signal in a second number K2 of frequency bands, wherein K2 is smaller than K1; and a level control unit that provides a resulting level estimate based on said first level estimates and said attack/release time constants associated with said second level estimates. The level estimator may be used in devices or applications that benefit from a dynamic adaptation of an input signal level to a listener's dynamic range of sound level perception, or to any other specific dynamic range deviating from that of the environment sound.

公开(公告)号：US10277990B2

公开(公告)日：2019-04-30

申请号：US15885969

申请日：2018-02-01

Applicant: Oticon A/S

Inventor： Anders Højsgaard Thomsen ,  Jan Petersen ,  Jan Mark De Haan

IPC: H03G9/00 ,  H04R25/00 ,  H04R29/00 ,  G06F3/16 ,  H03G9/02

Abstract: An adaptive level estimator for providing a level estimate of an electric input signal representing sound is provided. The adaptive level estimator comprises a first level estimator configured to provide a first level estimate of the electric input signal in a first number K1 of frequency bands; a second level estimator configured to provide a second level estimate of the electric input signal and/or associated attack/release time constants in a second number K2 of frequency bands, wherein K2 is smaller than K1; and a level control unit receiving said first and second level estimates and configured to provide said resulting level estimate based on said first and said second level estimates and/or said associated attack/release time constants. The invention may e.g. be used in devices or applications that benefit from a dynamic adaptation of an input signal level to a listener's (possibly limited) dynamic range of sound level perception, or to any other specific dynamic range deviating from that of the environment sound.