Howling suppression method and audio playing device

WO2025251880A1PCT designated stage Publication Date: 2025-12-11ANKER INNOVATIONS TECH CO LTD
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Patent Information

Application Number
PCT/CN2025/095407
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-07
Filing Date
2025-05-16
Publication Date
2025-12-11

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Abstract

Provided in the present application are a howling suppression method and an audio playing device. The method comprises: when an audio playing device is in a playing state, acquiring a played audio signal which is currently played by a loudspeaker, and an environmental sound signal which is collected by means of a feedforward microphone; on the basis of the played audio signal and the environmental sound signal, determining a frequency response estimation at the current time point; performing fitting on the frequency response estimation, so as to obtain a target filter parameter; and updating a filter parameter of a filter to be the target filter parameter, so as to suppress howling by means of the filter.
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Citation Information

Patent Citations

  • Earphone feed-forward filter parameter generation method and device, earphone and storage medium

    CN114040285A

  • Howling suppression method and device, sound equipment and sound amplification system

    CN115278465A

  • Howling suppression device, howling suppression method, and non-transitory computer readable recording medium storing howling suppression program

    US20240121554A1