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Gear / Technical Help => Ask The Tapers => Topic started by: westkc3 on September 12, 2008, 04:39:59 PM
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Recorded Larry Coryell Trio last night. As I was driving home I listened to the recording and it sounded pretty good until I got to an acoustic track when I heard a strange noise, over the road noise no less. When I got home, I transferred the file to my PC and listened thru my Sony VD - 900 cans. Ouch! On the acoustic track it stands out like fingernails on a chalk board. Why would this be?
Equipment/settings;
AT 853 sub-cards
CA ST 9100 (Not positive of the setting as this was a stealth job and I set according to meter levels, I'd guess it was only at around 10 o'clock)
H120 (Rockboxed) line in gain @ +10, AGC Safety on
I checked the battery in the pre with a voltmeter and it's still fully charged. I checked the recording screen and the AGC knocked the gain down to +9.5. All connections were double checked prior to beginning the recording.
Is this the H120s pre, HDD the ST 9100?
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It doesn´t sound like the known noise we all know from preamps. It´s more kind of electrical-noise. Never had this issue with my H120, but mine is CF-card-modded and it could be that the spinning harddisk causes this noise which can only be heard at silent tracks.
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Upon futher listening the noise first appears between tracks 3 & 4. I do notice from the very start of the recording what sounds like a hush of air. Is it possible this could all be from HVAC?
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HVAC is always a problem, especially with mic's that can hear down low.