Shotgun Mics and XLR adapters

[Erik Hermesman]

I should add to my previous post that when I say I recieved a very low signal I mean the amplitude is very low and there is a significant lack of low frequeinces.

I also tried using an XLR cable with an old XLR to 1/4 adapter and from there went to a 1/8 adapter. The result was a strong signal with all frequencies present (alas, sound was only present in one channel).

This is the XLR adapter that I used in this test.

Why did the Radioshack XLR adapter combined with the additional 1/8 adapter produce near sufficient results and the original XLR to 1/8 cable detriment the signal?

[Rodney Morris]

Which camera/device are you plugging into? What does it say above the jack? It sounds to me that you are plugging into a mono mic input, which would need a mono 1/8″ plug.

[Erik Hermesman]

Panasonic PV-GS70. Above the jack it says “Remote/Mic (Plug In Power)”

[Erik Hermesman]

I was recommended this cable today.

https://www.shure.com/ProAudio/Products/Accessories/us_pro_A96F_content

It looks like it should do the job…

Any thoughts?

Thanks again.

[Rodney Morris]

Well Erik I just downloaded the manual on the PV-GS70 and it appears that the mic/remote jack does indeed use a stereo mini jack. However, this input was designed for use with the remote control/narration mic combo. So I’m guessing that the remote function is wired perhaps to the ring portion of the TRS plug, while audio is on the tip (sleeve being the ground). You might need to wire a female XLR to male TRS in this manner:

XLR Pin 1 to 1/8″ Sleeve.
XLR Pins 2&3 to 1/8″ Tip.
Nothing is wired to the 1/8″ Ring.

You may still need the voltage blocker.

Ty, would you please check this?

[Junaid Syed]

What value should I use for the capacitor? I saw the link:
https://www.rcrowley.com/CamAdapt.htm
Is it OK?

[David Conrad]

My question concerns a similar connection concern. I want to connect the output of a Microphone pream XLR balanced to the 3.5 mm audio input on a imac G5. The jack requires line level as it provides no voltage itself. I’ve read that it accepts mono or stereo. What would be the best way to wire the XLR to a 3.5 mm trs or ts?