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About will1234

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  1. PZM-11LL Connections

    Thanks for your reply. I sincerely appreciate your insight and will purchase some shielded cable today.... -Rob
  2. Currently I have two PZM-11LLs connected to my Shure SCM810 and not phantom powered. Separate RS 24VAC transformer. To make the connections to the mixer I used CAT-6 with a single strand from 3 twisted pair sets and power on both strands of the orange/orange white pair. They seem to be working OK to me but I am new to this. Other than the obvious differences, what is the difference between the CAT-6 and shielded microphone cable? The CAT-6 isn't shielded but is designed to eliminate or minimize any cross-talk via the twists. Knowing the above, and drawing on any similar experience would using shielded mic cable work better? Should I be able to detect an audible difference or would it only address inaudible line noise only seen with a scope? I have to believe that running the power in the same 4 pair bundle has to be detrimental to some degree but don't see anything obvious as a resulting of doing so. Should I go ahead and run separate power. Phantom power is an option but don't really want to tear into the circuitry at this point unless if would be a significant benefit. Running additional lines isn't a problem. BTW, both runs are around 30 feet. If I need to switch to shielded mic cable, is there a particular brand or street name (nickname) I should look for when I head out. In the telecom world, hardly anything is actually referred to by its true name but rather a, sometimes colorful, nickname. I also have RG-59 and RG-6 coax on hand but they are only 2 conductor core and shield. Thanks in advance Rob
  3. PZM-11LL Generalities

    Thank you so much for the reply. From where I was this has propelled me light years ahead.....
  4. Hello all, I would say that I am an audio novice but that would be an egregious overstatement. What I am searching for, if any exist, are general rules of thumb regarding PZM microphone placement in an open room. More specifically, I ordered 2 PZM-11LL mics for use in an open-air voice recognition system. I pretty sure that this is a ‘that depends topic’ where everything influences everything else but I need a starting point of some kind. I have bookmarked the technical resource documents on the Crown web site have not had time to read through them yet. Also, I have been told that the room I am in is a worst case scenario with flat walls with nothing on them, hard wood floors, a 12 foot ceiling, and measuring in the neighborhood of 12’ x 30’. I know this is probably going to be a lot of trial and error work but want to at least eliminate the ‘audio common sense’ variables. Should the mics be installed at wall switch height, head height while sitting, while standing? Is there any variance to where the mic is in relation to the voice? For example, is it better to speak directly at the mic or would work as well with my head pointed 30 degrees to one side? Would it be better to have one 3 feet behind my head or 15 feet across the room? What about a mixer? I currently have a cheap $40 mixer (you can probably guess where it was purchased) which helped while trying to use all of the wrong mics but have to believe that there is a different one at a less than heart stopping price somewhere. I’ve heard of people using automatic mixers. Is this the silver bullet that the name implies? See, audio novice is an egregious overstatement! Thanks in advance, Rob