Sound isolated room but its full of random crap, HELP!

[Etheron]

I have access to a "perfectly" sound isolated room in my University, where I intend to record vocals and acoustic guitars with my condenser mics. This room is part of the psychology department, and it is intended to be used for psychology experiments. So, since I am a graduate student at this department I can reserve this room under the pretext that I'll do uhm, experiments ... ( Of course they wont know the subjects of experiments in question will be my voice, my guitar , my condenser mic, etc). However, since nobody has used it in a long time, its actually become kinda like a storage room with all sorts of random furniture and crap ( metal an wood tables, metal and wood chairs, a pair of metal panels, shelves, devices for audiophysiology experiments, some fulffy couch, etc). I'd say that roughly 25-35% of the actual room space is filled with crap. I "could" take out everything out for my recording, but due to the, uhm, "conspicuity" of my project, I really shouldnt risk bringing attention in the department of me using this room, and taking out all the random crap is a sure way to garner unwanted attention. It is already bad enough that my current graduate research has NOTHING to do with audiophysiology experiments, so the last thing I want to do is make my supervisors suspicious of my real intention with this room. So, since even with all the furniture and crap I still have enough room to do my recording, I was wondering how could all this affect the recording. I wouldnt want to go through all the hassle of taking out all the furniture, figuring a place to put it(which might be really troublesome), risking getting unneeded attention to my personal recording project, to then find out that it was all for nothing.

SO PLEASE SOMEBODY HELP ME! ADVISE ME IF A PERFECTLY EMPTY SOUND ISOLATED ROOM HAS ANY DIFFENRECE WITH ONE FULL OF FURNITURE AND OTHER RANDOM CRAP. Please be aware that I am not asking how to arrange the random crap, I really dont have that luxury. all I want to know if its better with the crap in or the crap out. The room AS I T IS NOW does have some nice natural reverb, which cant hurt my recording, so I guess some of the crap might be reflecting the sound perhaps, or perhaps the room has natural reverb, I dont know.

If u must now, my set up consists on a AT-3035, a Rode NT1A, a Tapco blend 6 mixer with mackie preamps, and a somewhat noisy pentium 4 EE DAW which I stil lneed to figure out how am i going to muffle while I'm doing the recording.

Thanks in advance for the help

[Eric_Desart]

SO PLEASE SOMEBODY HELP ME! ADVISE ME IF A PERFECTLY EMPTY SOUND ISOLATED ROOM HAS ANY DIFFENRECE WITH ONE FULL OF FURNITURE AND OTHER RANDOM CRAP.

Yes it has difference, a shit load of random crap difference.
Is it better or worse?
Well there is measurement equipment and your ears.
Asking others to define or rate this difference, based on this description is as asking them to participate in a lottery.

Kind regards
Eric