Question about Panasonic AG-DVX100B DV Digital Camcorder

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Audio level Issues with Sennheiser Wireless MIcs

We are having issues with audio levels when using the Sennheiser wireless Mic systems with the Panasonic. We have the gail at its lowest setting in the camera and the sensitivity at its lowest setting in the wireless mic transmitters and the camera settings on the side of the camera at mimimum. We have too low audio levels with a slight buzz after capturing in Final Cut. We seem to have edgy or raspy audio if we use any higher settings. Any advise ???? Help Needed.

Dave

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MAKE SURE WHAT LEVEL IS OUTPUT FROM YOUR WIRELESS, LINE LEVEL OR MIC LEVEL. SET YOUR XLR INPUT TO SAME LEVEL BEFORE YOU ADJUST YOUR RECORD LEVEL. ADJUST SWITCH ON FRONT OF CAMERA NEXT TO XLR. IF NOT SELECT AUTO LEVEL AND IF PROBLEM EXISTS STILL, TAKE IT TO SOMEONE WHO CAN MONITOR THE AUDIO ON AN OSCILLOSCOPE TO CHECK DISTORTION

Posted on Jan 22, 2010

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Could be your capture device.  Isolate this problem by monitoring the quality of the audio at the RF reciever, then monitor it at the camera.  I'm assuming you do not have a EFP mixer or other device that will actually measure your Dbm or Vu levels - what happens if you play the tape in the camera and monitor the output of the camera with an external device - even a TV or stereo? If it sounds good on your TV turn your attention to the capture card.

Posted on Jul 23, 2008

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Posted on Jan 02, 2017

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I have 2AKG UHFHT40ULTRA HIGH FREQUENCY handheld transmitter microphone , why when I turn them on they blink on and then notning ?


Okay, before going any further, let's just check....

  1. Along with your wireless mics, you have an AKG wireless receivers (e.g. WMS40 mini2), right?
  2. You've checked that mics and the receiver all work on the same frequency?
  3. You have connected both outputs from the WMS40 mini2 to individual mic channels on a mixing console?

Let's recap....

  • The AKG mics aren't going to work unless you have one of the matching receivers

  • The receiver has to be the correct type. This means if you want to run two mics at the same time, then you need a dual channel receiver (WMS40 mini2) otherwise they'll block each other. So, if you only have a single channel receiver (WMS40 mini) then you can only run one mic at a time, not two.

  • The mics and receiver have to be on the same frequency. They make it easy by colour coding the hand mics and the receiver. If the colours are different then they're working on different frequencies that are not compatible.


If you're good to go on all the above then the next stage is just the connection and set-up of the mics, receiver and mixer.

Since the mics are a pretty straightforward On/Off switch affair then there's not much to say there. Just make sure you maintain the correct distance for to ensure the wireless signal spreads out properly. It needs a minimum of 3m (about 10ft) distance between the mic and the receiver.

The receiver is straightforward too. It needs power, so make sure you plug in the mains adapter. The front LEDs give you the status of the signal. There's only two lights per channel, so it's easy to understand. RF OK confirms that the receiver is picking up the mic signal, so this one should be lit. AF CLIP let's you know when there's too much level from the singer/speaker. This could be that the receiver's volume control is set too high, or the singer/speaker is holding the mic too close for the volume they're producing.

The receiver's volume control needs to be adjusted fully counter clock-wise if connecting to a mixer by a balanced audio connection. If you're running in to the line level input, then the dial needs to be turned fully clock-wise.

The signal connection going to the desk should really be made with balanced leads. Jack to jack (TRS) or jack to 3 pin XLR will both maintain the noise suppression benefits of the balanced audio connection.

The rest is how you set up the mixer for the signal. Good luck.

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Audio Technica and Sennheiser each have proprietary connectors for their mics. A lot of times the mics require Phantom power which is drawn from the battery of the pack.This is important as the mic will need to be wired correctly to function.
The first thing you will need is the correct plug from the company. Check with Sennheiser customer Support for the correct part. If you aren't extremely good at soldering, do not attempt this. You can change the plug but the wires are extremely delicate and can short easily. Moreover because of the phantom power, the plug must be wired correctly for the mic to function, or you may end up damaging the mic by sending phantom power up the wrong line. I would advise having a music store or pro audio service that handles these products do the wiring for you. If you feel you are up to it, you can do it yourself, but be careful.

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There are many things that could be causing these types of symptoms. Try calling Shure and asking for their Applications Engineering Department. They can help you troubleshoot your wireless.

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That's probably not going to work.
Mic level is extremely low compared with line level.
Your sound card is expecting a line level input.
It's simply not made to plug a microphone into (you must be using an adapter or two just to make the connection)
Look for a USB Audio Interface with XLR or 1/4" microphone inputs - these interfaces are pretty generic these days and easy to use ... just plug into your computer via USB and then plug the mic into the interface ... which has a volume control on it ...
I use a Tapco Link.USB ... and like it

For audio expertise and PA system help with feedback and noise, try our new DVD "PA Systems for Small Groups" at www.whamuniversal.com

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This is quite common with G2's, and really annoying!
If you are lucky, 50% of the time the red button is pushed inside the mic.
You need to remove the bottom section:
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- there should be 3 star-bit screws around the outside (remove)
- pull the bottom of the mic off

If the red button is not inside, they are available as a spare part from Sennheiser dealers.

Be carefull when putting the mic back together, it needs to line up correctly with the internal guides, forcing the base back on could damage the ribbon cable. when the line-up is correct it slides on very easily.

Best of luck.
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Just on a side note, you can get a wired lavalier mic at Radio Shack for $15 that could make the problem go away, or at least eliminate a lot of electronics ... but the cable will only be about 15 feet long ... you could use an extension, just make sure it's mono.

Couple notes: One is that the mini plug input on the HV20 is a stereo microphone input, and you're plugging in a mono source. This will not cause distortion, but is not ideal ... a simple stereo adapter to break down the input (mono mic into one side of stereo adapter, stereo adapter into camera) would optimize the situation.
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Good luck! You are not alone with these issues ... the beauty of modern video cameras is in their small size, but it's also a problem because you are not provided with proper audio inputs - you have to deal with the stereo mini plug input, which is less than ideal.

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