Nikola Holecek, Dejan Dren

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This paper presents a new visualization method of complex sound sources in combined fridge freezers. Measurement method with sixty array microphones in free sound field conditions is used. Laboratory acoustic measurements using an algorithm of the complex sound sources visualization are performed. With this method, sound effects are successfully identified, localized and calculated. The individual crack noises emitted as a result of thermal dilatation of different types of material in the transitional cooling modes of the household refrigerator.


free field, array microphones, acoustic measurements, crack noises

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ISSN   0354-804X (Print)

ISSN   2406-0534 (Online)