מחשב השתקות

Air Volume (cFm): cu.m/h:
Cross Section (cm x cm):    X   sqm:
Operating Diameter (mm): POD:
Free Area (sq/m):
Real Velocity (m/sec): Ft/Mnt
Length (m):
Length (m):
Depth (mm):
Pressure Drop (Pa):
Frequency (Hz) 63 125 250 500 1000 2000 4000 "A"
Noise Reduction (dB)                
Frequency (Hz) 63 125 250 500 1000 2000 4000 "A"
Source Noise Power Level (dB):  
Source Noise Power Level (dB):  
Source Noise Power Level (dB):              
Sound Pressure Level at m (dB)
Sound Pressure Level (dB):  
Sound Pressure Level (dB):              
Silencer Noise Reduction (dB):
Expected Noise Level at m (dB)
Expected Noise Level(dB)
"A" Weighting Filter (dB): -26 -16 -9 -3 0 +1 +1
"A" Weighted Noise Level (dB):
Total expected Noise dB(A)
Please type the title for this design
Your email address
Silencer Type: