Paranormal Files - Security Cam EVP Session 1

So last night I recorded an EVP session on both security cams as promised. At the beginning of the recordings no orbs or dust on either camera. As I progress into the session I am having a hard time with the 'orb' or dust equation in this video. What are these? DUST or ORBS? I have never seen so many in any other security video. Did I stir something up by asking questions. Or did I just stir something up...like dust? I also get a weird electronic buzz throughout the 1 hour session. Notice at the very end I go upstairs. No dust, or orbs. So what is going on. You guys tell me what you think. Thanks for watching.