The problem with turning those trim knobs fully clockwise is that the pream=
ps get very
noisy, you really need to reduce them a bit.
Mike
>At 2:48 PM +0100 4/27/08, James Huckle wrote:
>>Hi All
>>
>>I appreciate this subject has gone around for a while now. My unit
>>arrived on Friday and I've been researching what the mic trim does,
>>generating tests tones to set mics etc.
>>
>>The missing piece of information I need is does the mic trim setting
>>apply for given mic for *any* recording?
>
>Yes, except for rare, loud sounds and settings. ;-)
>
>Assuming the output levels of your stereo mics are matched to within
>a decibel, for most quieter, natural environments and sounds, turn
>the trim knobs fully-clockwise. This removes all "trim" from the mic
>preamp circuit.
>
>One way to tell if the output levels of your mics are well-matched is
>to turn the trim knobs fully clockwise, place the mics side by side
>in a quiet setting, raise the master record level while listening
>with a good pair of stereo headphones. As you raise the master
>record level, the background "presence" (usually a dirty low
>frequency "rumble") should increase in both ears at the same rate.
>If one side fades in sooner (louder), that side may need trimming. If
>the meter readings seem to show the same imbalance, go ahead and trim
>the louder side until both sides fade in from "silence" at the same
>rate. You can always adjust the stereo balance in post but sometimes
>mic levels are so different its nice to match them more closely in
>the field. Lower/trim just the louder side, not both.
>
>>I.e. for a given mic will
>>the same trim setting be used for quiet ambiance as well as loud or
>>will I need to trim for each situation?
>
>Its safest to use the trim knobs only when you cannot reduce the
>master record level enough to get correct meter readings. Rob D.
>
>>
>>Any advice appreciated. Many thanks
>>
>>James
>>
>>--
>><http://www.phonography.org.uk/blog/>http://www.phonography.org.uk/blog/
>>
>>
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