Re: Sound Analysis
John,
There indeed is less low mid level wherever the "new" measurement was taken.
Attenuation is generally used as a term for reduction in amplitude prior to amplification.
The low mid reduction in your "new setup" could be from floor bounce (dual path length interference) or from a different proximity from walls, reducing low mid reinforcement.
Or it could be a difference in mic location..
Your measured differences are large, a 10 dB difference at 1000 Hz sounds around half or twice as loud, at 20 Hz a 5 dB difference sounds half or twice as loud.
The chart below shows how average hearing responds to different levels.
Art
