Ventilation Acoustics Calculator

FSRS Rectangular Straight Silencer Calculator

System Parameters

System Type:

Silencer Placement:

Air Volume (l/s):

Silencer Dimensions

Width W (mm):

Height H (mm):

Length L (mm):

Gap Width (mm):

Fan Selection

Fan Model:

Manual Override Lwi

Silencer Product Selection

Product:

Fan Lwi & Base Silencer IL (dB)

Frequency (Hz)	63	125	250	500	1000	2000	4000	8000
Fan Lwi
Base IL

Note: Base IL values will be automatically adjusted based on silencer length using formula 13 multipliers.

Room Acoustics Calculator

⚠️ No silencer data available. Please calculate silencer performance first in the "Silencer Performance" tab, or enter custom sound power levels below.

Room Dimensions

Room Length (m):

Room Width (m):

Room Height (m):

Temperature (°C):

Room Surface Materials

Add Surface Material

Surface Name:

Material Type:

Area (m²):

Absorption Coefficients (α) per Frequency

63Hz	125Hz	250Hz	500Hz	1kHz	2kHz	4kHz	8kHz

Current Room Surfaces

No surfaces added yet

Input Sound Power Levels (Lw)

Use data from Silencer Calculator

Frequency (Hz)	63	125	250	500	1000	2000	4000	8000
Sound Power Lw

Duct Velocity & Design Analysis

Duct Parameters

Duct Width (mm):

Duct Height (mm):

Airflow (l/s):

Duct Type:

🔊 Ventilation Acoustics Calculator