FIELD: reducing flame- produced noise level. SUBSTANCE: device has photodetector made for detecting flame fluctuations and generating first acoustic signal from flame, means for generating second acoustic signal which is inverted relative to first acoustic signal, cathode and anode designed for building up electric arc between them to apply second acoustic signal to flame and for modulating by mentioned second acoustic signal and suppressing noise produced by flame. Flame-produced noise suppression process includes detection of first acoustic signal by means of photodetector, generation of second acoustic signal, application of the latter to flame between anode and cathode, building up of electric arc which is modulated by second acoustic signal, and suppression of flame- produced noise. EFFECT: provision for immediate suppression of flame-produced noise. 14 cl, 3 dwg
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