epoch1970 wrote: > Of course, noise cancellation would be great... There are refrigeration > units, quite loud and they produce what I think is stationary noise.
Hi! Cancelling the noise of your refrigeration units may not be as easy as you think - how many independent units are there? Each one will switch its compressor (i.e. the refrigeration pump) on & off thermostatically according to the temperature inside the unit & therefore even though the noise made by each compressor may be "static" in nature, the aggregate noise generated by them all will vary as individual units switch on & off independently of one another - none of them should be on all of the time: if this is not the case then you don't have adequate refrigeration capacity. You'd have to "close mike" each unit separately & insert a reversed phase signal from each through a mixing unit into your audio signal - & even then you'll only be able to achieve one "dead zone" in which the sound is cancelled. You would probably end up with *-greater-* "compressor" noise in other areas where the introduced cancellation signal itself was actually louder than the noise there from the refrigeration units themselves... How loud are these things anyway? Dave :) ------------------------------------------------------------------------ Golden Earring's Profile: http://forums.slimdevices.com/member.php?userid=66646 View this thread: http://forums.slimdevices.com/showthread.php?t=107617 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
