Nimai Posted December 28, 2004 Report Share Posted December 28, 2004 i recently used my nh900 to record a long recording. I had it connected to the mains for the whole period. when i heard my recordings i heard a buzzing sound in the background. Should this happen? If not then is it a fault of my player? Otherwise what would you reccomend i should do to increase battery life whilst recording? would the batteries from the MZN1 net MD work on a nh900? all suggestions would be appreciated. thanks Quote Link to comment Share on other sites More sharing options...
Christopher Posted December 28, 2004 Report Share Posted December 28, 2004 Welcome to the forums. :welcome: Here's some tips for battery life: http://forums.minidisc.org/viewtopic.php?t=5711 Quote Link to comment Share on other sites More sharing options...
A440 Posted December 29, 2004 Report Share Posted December 29, 2004 Also, try using some of the clamp filters that came with the MD on the mains cord and anything going into the MD. It can't hurt. Quote Link to comment Share on other sites More sharing options...
dex Otaku Posted December 31, 2004 Report Share Posted December 31, 2004 I have noticed that with my NH700, regardless of how clean the power source is or whether the chokes are installed or not, trying to record with a powered mic while using the AC adapter is an exercise is utter futility. HUMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM. On the other hand, with a no-name AA battery and a HiMD disc I have successfully made recordings in excess of 7 hours in length [with a powered mic, in Hi-SP mode] and still had enough juice to use the unit as a player for a couple of days [of heavy use] afterwards. PCM mode would be another matter, though. Quote Link to comment Share on other sites More sharing options...
TimJim Posted December 31, 2004 Report Share Posted December 31, 2004 I have had the same buzzing on the MZ-NH1 when using mains while recording from a mic - with suppressors on. I have found that 5 NiMH rechargable AA size in a battery pack (5 because they are 1.2 v and the 4.8v from 4 gave erratic service) plugged into the charging station worked very well - Maplin (maplin.co.uk) in the UK sells battery holders for 6 and dummy batteries to take up the sixth position and the power supply plug etc. With 2300mAh AA cells available there is a lot of juice for hours of buzz free-recording... Quote Link to comment Share on other sites More sharing options...
Christopher Posted December 31, 2004 Report Share Posted December 31, 2004 So, are we saying here that recording via AC power carries this distortion? The only time I tried recording with AC power I had the same result. Please don't tell me that it's like this for everyone and there isn't a solution. Quote Link to comment Share on other sites More sharing options...
dex Otaku Posted December 31, 2004 Report Share Posted December 31, 2004 Sony's video cameras and other devices with "plug in power" for mics are also very well-known for this "feature". [i've also experienced this with Canon miniDV equipment. It appears that power filtration isn't a concern for equipment manufacturers.] It should only happen with powered mics though. I've met budget video crews who carry around their own power along with their equipment - marine or motorcycle lead-acid batteries in cases, and a 12V recharger, because getting good AC at any given location is iffy for one - secondly because of problems with powering condensor mics. Quote Link to comment Share on other sites More sharing options...
andrewhall Posted December 31, 2004 Report Share Posted December 31, 2004 This is interesting and relevant to my recording situation. Would you mind clarifying for this newbie what a 'powered mike' is? I am currently using a Sony MS957 which has a little battery in it - I presume that is not what you are talking about? Andrew Quote Link to comment Share on other sites More sharing options...
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