• Patent Title: System and method for real time loudspeaker equalization
  • Application No.: US17269159
    Application Date: 2019-08-14
  • Publication No.: US11601774B2
    Publication Date: 2023-03-07
  • Inventor: Daekyoung Noh
  • Applicant: DTS, Inc.
  • Applicant Address: US CA Calabasas
  • Assignee: DTS, Inc.
  • Current Assignee: DTS, Inc.
  • Current Assignee Address: US CA Calabasas
  • Agency: Schwegman Lundberg & Woessner, P.A.
  • International Application: PCT/US2019/046505 WO 20190814
  • International Announcement: WO2020/037044 WO 20200220
  • Main IPC: H04S7/00
  • IPC: H04S7/00 H04R3/04
System and method for real time loudspeaker equalization
Abstract:
A loudspeaker system can include a first loudspeaker driver provided in a substantially fixed spatial relationship relative to a microphone. The loudspeaker driver can be tuned, for example automatically and without user input. In an example, the tuning can include receiving transfer function reference information about the first loudspeaker driver and the microphone, and receiving information about a desired acoustic response for the loudspeaker system. The tuning can include determining a simulated response for the loudspeaker system using a first input signal and the transfer function reference information, and can include providing the first input signal to the first loudspeaker driver. In response to the first input signal, an actual response for the loudspeaker driver can be received using the microphone. A compensation filter can be determined for the loudspeaker system based on the determined simulated response and the received actual response for the loudspeaker system.
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