The invention relates to an audible howling control system and method. An audio system includes: a speaker; a microphone that generates a microphone signal based on the sound output from the speaker; a mixer module configured to generate a mixed signal by mixing the microphone signal with the audio signal; a filter module configured to filter the mixed signal to produce a filtered signal and to apply the filtered signal to the speaker; and a detector module configured to determine a howling frequency in the microphone signal attributable to sound output from the speaker, where the filter module is configured to reduce a magnitude of the filtered signal at the howling frequency.
本发明涉及可听啸声控制系统和方法。一种音频系统包括:扬声器;麦克风,其基于从扬声器输出的声音来生成麦克风信号;混合器模块,其被构造成通过将麦克风信号与音频信号混合来生成混合信号;滤波器模块,其被构造成对混合信号进行滤波以产生经滤波的信号并将经滤波的信号应用于扬声器;以及检测器模块,其被构造成确定麦克风信号中可归因于从扬声器输出的声音的啸声频率,其中滤波器模块被构造成减小经滤波的信号在啸声频率下的大小。
Audible howling control system and method
可听啸声控制系统和方法
2023-02-17
Patent
Elektronische Ressource
Chinesisch
IPC: | H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G10L Analyse oder Synthese von Sprache , SPEECH ANALYSIS OR SYNTHESIS |
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