Resource Documents by Casella Stanger
Casella Stanger
Low Frequency Noise
Technical Research Support for DEFRA Noise Programme 2001 2 Background 2.1 Low frequency noise is not clearly defined but is generally taken to mean noise below a frequency of about 100 to 150 Hz. Noise at frequencies below about 20 Hz is sometimes referred to as infrasound and this type of noise presents even greater difficulties in its measurement and assessment. At these particularly low frequencies complainants often have difficulty in describing the source of their complaint, sometimes referring to . . . Complete article »
Also try:
Search all of documents for "Casella Stanger".
Search entire site for "Casella Stanger".