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Title:
LOW COMPLEXITY HOWLING SUPPRESSION FOR PORTABLE KARAOKE
Document Type and Number:
WIPO Patent Application WO/2022/041030
Kind Code:
A1
Abstract:
A low complexity howling suppression system and method for portable karaoke system are provided. In the howling suppression, at least one infinite impulse response (IIR) filters are introduced for estimating the acoustic feedback picked up by the microphone from the real environment, and thereby to cancel out the acoustic feedback from the microphone input signal.

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Inventors:
ZHENG JIANWEN (CN)
SHIH SHAO-FU (US)
Application Number:
PCT/CN2020/111657
Publication Date:
March 03, 2022
Filing Date:
August 27, 2020
Export Citation:
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Assignee:
HARMAN INT IND (US)
ZHENG JIANWEN (CN)
International Classes:
H04B15/00
Domestic Patent References:
WO2014205297A12014-12-24
Foreign References:
US20040125973A12004-07-01
US6282176B12001-08-28
US5668794A1997-09-16
US20110293103A12011-12-01
Other References:
See also references of EP 4205309A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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