#21

No doubt, but I’d like to use it also for a 48HP portable, battery-powered setup to use outside, so I guess a mixer, albeit small, is quite impractical :slight_smile: – PS: I’m deciding on the Rode NT-3, which is both battery-powered and phantom-powered through XLR, I already have a MACKIE Mix5 at home, in case I want to use it in studio.

#22

You’re just going to route the mic signal to one of your mono inputs. Ideally, you use a TRS to TS cable with tip-tip, ring-shield, and cable shield left floating on the TS side. With a TRS to TRS cable plugged into a TS jack, the ring will short to ground—which may be fine.

#23

In my case, the input module (an EricaSynth Pico INPUT) has a standard stereo TRS input, which gets amplified and splitted into the two mono modular-level L/R outputs. So I will plug the TRS cable directly, that is why (having a basic knowledge of how balanced signals works, but knowing nothing about how XLR/TRS cables are made) I asked what to expect on L/R.

#24

I would also be quite interested in finding a solution for a module that can supply plug-in power for 3.5mm lav mics, are there really no solutions for this other than a 1U tile?

1 Like
#25

:thinking:

Shouldn’t it be possible to use a stackcable and any old CV offset module to power a plug-in powered mic? It would require tweaking the voltage output depending on the output impedance of the CV offset module.

You’d also need some amplification, and to filter out the DC component of the signal with a HP filter or an A/C-coupled input.

:warning: I don’t know the ratings of the particular components in play here, so I don’t know the consequences of putting too much current through your capsules! All I know (from my brief research) is that most electret capsules have JFET buffers that require a particular amount of current to bias them open. That might not be the right terminology… “bias” usually refers to the gate side and JFETs conduct even when Vgs is 0, so no bias needed. It should be possible to start at 0V and use your ears to determine when you’re in the right ballpark. Just a couple volts should do it!

Source: https://www.ti.com/lit/ug/tidu765/tidu765.pdf

#26

Ok, plugging directly into a stereo TRS (left input) should be ok, as long as you only take one channel out of your Pico Input. The left channel will take the hot signal from your mic from the tip.

1 Like
#27

this is off topic by a bit but if I were to be looking for a basic microphone for general fx recording I would start at shop goodwill - alway lots of cheap and cheerful dynamic mics with 1/4 plugs in the $10 range.
example link