tlavite 0 Posted May 12, 2011 Hi I recently installed a 32CH system at a local restaurant. Well we have 6 mic's installed and after hooking them up and turning on the audio we have a weird pulsing kind of smacking sound on all the mics. The sound is louder on some mics and quitter on others. Could this be because of electrical noise? all mics are amplified mics running on RG59. Anyway I am going to try and fix this problem tomorrow and then I will be done with this job finally. Any suggestions on what could be causing this? It is a Divis 32Ch system. Also you can hear people talking the audio works there is just like a continuous timed smacking weird noise on all the mics. Share this post Link to post Share on other sites
tlavite 0 Posted May 13, 2011 Well I went to try and figure it out today. the first thing I did was bring some speakers with me and plugged them into the DVR and much to my surprise the audio was perfect on all 6 channels. So now I figure its got to be picking something up on the cable line running to the modem. I ruled that out and tried something I really didn't think would make a difference. See the DVR is on its own Charter modem nothing else attached. We attached the managers computer to the DVR's charter modem so he could have the faster speed since the other restaurants modem was packed and slowed to a crawl during business time. So we ran a long ethernet line from his office on one side of the building to the charter modem for the DVR. Now once I unplugged this long ethernet cable from the modem much to my surprise the audio being transmitted online to remote stations was clean no pulsing rhythm in them. Once his computer was attached the noise came back. I reconnected his computer back up to his old network and left the Charter modem with nothing but the DVR attached. Before I left it was working perfectly... then once back home I logged on to test the site and bam the noise is back but not nearly as bad. On some cameras its really low. On others its definitely back. It has me stumped... also i noticed the audio pulsates exactly with the Modem connectivity lights in the same exact rhythm. Share this post Link to post Share on other sites
Nimrod 0 Posted May 13, 2011 “also i noticed the audio pulsates exactly with the Modem connectivity lights in the same exact rhythm.” See if you can get the modem replaced. Share this post Link to post Share on other sites
Soundy 1 Posted May 13, 2011 I would suggest removing the mics before you and the store get in trouble: http://www.rcfp.org/taping/states/illinois.html In Illinois, an eavesdropping device cannot be used to record or overhear a conversation without the consent of all parties to the conversation. 720 Ill. Compiled Stat. Ann. 5/14-1, -2. An eavesdropping device is defined as anything used to hear or record a conversation, even if the conversation is conducted in person. Share this post Link to post Share on other sites
