Example 2. Two Response Peaks
Figure 16. Two response peaks
Characterized by two response peaks, approximately equal in amplitude and width. This requires that you make a choice between the two peaks. In situations like this, the higher- frequency peak will always be more audible and objectionable. Response peaks below 45Hz, unless extreme, can actually be beneficial toward achieving visceral impact. Perform corrections on the
Apply the Width Selector as described previously. Align the center line of the Selector over the center of the
Determine the appropriate level using the technique described earlier. This calculation will indicate a
Skip to the “Adjusting the R.A.B.O.S. Equalizer”section on page 14.
Example 3. Peak Adjacent to a Dip
Figure 17. Dip above or below peak
Response dips can occur at any frequency, sometimes immediately adjacent to the peak you want to correct. Two examples are shown, one immediately above and one immediately below the peak. Deep response dips such as these are caused by destructive wave interference. Destructive interference dips occur only in one spot within the room. It is not uncommon to completely eliminate the effect by moving the RSLM to a different location. Note that this does not eliminate the dips. We have simply moved away from them. Sometimes only a few inches are required. Do not attempt to correct this condition with equalization. If you encounter dips like this, take the following steps:
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