Alphabetical search:  A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   All 
Please enter search here:

Entries found for search: free-field

free-field : A sound source radiating into three-dimensional space where there are no reflecting surfaces is said to be radiating under free-field conditions. The SPL as measured at various distances from the source would obey the inverse square law precisely. There is no such thing as a true free-field, but it is approximated in an anechoic chamber. Because all rooms have at least a small amount of reverberation, the sound field from a source is always contaminated with reflected sound. See also far-field, near-field, reverberant field.

site design Dan Rugh and Steve Kunath