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animationlife
Legend
January 14, 2020
Answered

Sennheiser EW 112P G4 Wireless Lavalier Mic " AF Out" " Sensitivity"

  • January 14, 2020
  • 1 reply
  • 3662 views

Hello Everyone.

 

I have the Sennheiser EW 112P G4 Wireless Lavalier Mic. I have a few questions, please.

I was told that It would be best for recording directly from the Sennheiser Into Canon 5D Mark4, to do the following:

1- Inside the Canon 5D Manual Audio Dial, Reduce the camera Pre-Amp all the way down to Zero and go one click up. Technically, the Camera Pre-Amp is doing no work.

 

2- Inside the Sennheiser Transmitter, Lower the Sensitivity to somewhere around -12dB, and Inside the Receiver, Play with the AF Out, for example, +6dB, or higher. Keep playing with AF-Out, and Sensitivity until the AF-PEAK is not Hot.

 

Someone else told me, It would be better to use at least 25% of the Canon 5D Mark4 Built-In Preamp, and 75% of the Sennheiser. Not to go all the way down, Inside the Canon Pre-Amp.

 

Also, with my Sony PXW-Z150 Camcorder, which has an XLR Jack, I did some testing, and I noticed that the Sony Built-In Pre-Amp was much more Powerful than the Canon DSLR. I noticed, with my Sony Z150 Camcorder, I tried the Sensitivity of -30dB, and the clip sounded nice.

What Is your recommendation?

Thank you very much.

 

https://www.bhphotovideo.com/c/product/1385595-REG/sennheiser_ew_112p_g4_a_ew_112p_g4_camera.html

This topic has been closed for replies.
Correct answer SteveG_AudioMasters_

Technically the correct way to do this is as it says in the manual, because this is going to achieve a greater signal to noise ratio in the mic preamp, and that's pretty much what you want here. I can't think of any reason that you'd want to do it any differently from that - apart from anything else, you stand a greater chance of overloading the Cannon this way if an exceptionally strong signal comes along. Doing it the way the manual suggests means that you'll only have a potential overload in the first stage, not further down the line as well.

1 reply

SteveG_AudioMasters_
Community Expert
SteveG_AudioMasters_Community ExpertCorrect answer
Community Expert
January 14, 2020

Technically the correct way to do this is as it says in the manual, because this is going to achieve a greater signal to noise ratio in the mic preamp, and that's pretty much what you want here. I can't think of any reason that you'd want to do it any differently from that - apart from anything else, you stand a greater chance of overloading the Cannon this way if an exceptionally strong signal comes along. Doing it the way the manual suggests means that you'll only have a potential overload in the first stage, not further down the line as well.

    A
    animationlifeAuthor
    Legend
    January 15, 2020

    Dear SteveG Audio Master.

    I did many Testings. You are Correct.

    Thank you very much.

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