Psychoacoustic Analysis of Vacuum Cleaner Noise
2. Psychoacoustic Factors: Definitions
2.3. Fluctuation Strength and Roughness
3. Experimental Layout and Methods
3.1. Test Environment
3.2. Test Appliances
3.3. Test Equipment and Signal Processing
4. Results and Discussion
4.1. Acoustical Performances
4.2. Psychoacoustic Performance
4.3. Comparative Analysis
4.4. Statistical Analysis
- The average loudness values sensed by the right ear for model type 1 and model type 2 vacuum cleaners were higher irrespective of multiple speed ratings.
- The average sharpness value of model type 2 and type 3 vacuum cleaners increased with increased motor speed.
- A low variation in average roughness and fluctuation strength values revealed that the signal changes across the ears and surroundings were at the minimum.
- Moreover, the psychoacoustic metrics perceived by the user could be different from those that are within the proximity of the appliance.
- The ANOVA analysis revealed that microphone positions have a significant contribution to the equivalent sound pressure levels.
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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|Specifications||LG V-CP243NB||Dyson Cyclone V10||Xiaomi Cleanfly Gen2|
|Annotation used||Model type 1||Model type 2||Model type 3|
|Power rating (Watt)||1400||525||120|
|Suction pressure (air Watt #)||NA *||151||~100|
|Motor speed (R.P.M.)||NA *||125,000||100,000|
|Overall weight (kg)||3.5||2.5||0.56|
|C2||Right Ear Microphone (from the headphones)|
|C3||Left Ear Microphone (from the headphones)|
|S1||Minimum motor speed setting of vacuum cleaners|
|S2||Maximum motor speed setting of vacuum cleaners|
|V1, V2, and V3||Vacuum cleaner model types 1, 2, and 3, respectively|
|DF||Sum of Squares||Mean Square||F-Value||Prob. > F|
|Michrophone positions (C’s)||2||631.60||315.80||11.11||0.009|
|Vacuum cleaner types (V’s)||2||73.64||36.82||1.29||0.34|
|DF||Sum of Squares||Mean Square||F-Value||Prob. > F|
|Loudness (R2 = 0.982)|
|Sharpness (R2 = 0.84)|
|Model||14||9.70||0.69||148.75||8.52 × 10−150|
|Roughness (R2 = 0.75)|
|Model||14||4.92||0.35||87.68||4.91 × 10−113|
|Fluctuation strength (R2 = 0.27)|
|Model||14||1.22||0.087||10.62||1.32 × 10−20|
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Kumar, S.; Wing, W.S.; Lee, H.P. Psychoacoustic Analysis of Vacuum Cleaner Noise. Acoustics 2021, 3, 545-558. https://doi.org/10.3390/acoustics3030035
Kumar S, Wing WS, Lee HP. Psychoacoustic Analysis of Vacuum Cleaner Noise. Acoustics. 2021; 3(3):545-558. https://doi.org/10.3390/acoustics3030035Chicago/Turabian Style
Kumar, Sanjay, Wong Sze Wing, and Heow Pueh Lee. 2021. "Psychoacoustic Analysis of Vacuum Cleaner Noise" Acoustics 3, no. 3: 545-558. https://doi.org/10.3390/acoustics3030035