Connecting a balanced mono line output to Xbox Series S microphone input

[terencehill]

Hello,

I have a microphone preamp (Audient iD4) with 2 balanced outputs (L + R), and a headphone output.
Furthermore, I have an XBOX Series S controller with a combined headphone/microphone jack.

What I'm trying to achieve: using the microphone connected to the Audient iD4 on the XBOX.

What I did:
I used a splitter cable to split the combined jack of the XBOX controller into a microphone and a headphone jack (both 3.5mm).
Then I used a 6.35mm instrument cable (both ends 6.35mm, TS cable) and connected a 6.35 to 3.5mm adapter on one end. I connected one end to the splitter cable's mic input and the other end to the iD4's L line level output. But I don't hear anything...

I played around with the volume of the speaker output, even with the pan settings L/R, but to no avail.

 

[DVDdoug]

The short answer is that they are not compatible.

Line level signals are about 100 times stronger than microphone signals. You'd need an attenuator. The mic output also has a 5V "bias" to power electret condenser "computer mics" and that can potentially have "unknown effects" on whatever is plugged-in.

The combo jack also needs a 4-contact TRRS plug to make the microphone connection. (Regular headphones will work.)

 

[terencehill]

But it should be possible to turn down the volume of the line level signal. I know the signal must be dampened by ~20dB but can't this be achieved by reducing the volume?

There must be a missing connection because I don't hear anything. If the level was just too high, I would need to hear distortion.

I think I have this splitter: https://ventiontech.com/products/3-...litter-for-laptop-headphone-aux-cable-adapter

The combo jack is definitely a TRRS plug. Because it supports stereo output and a mic. So there must be 4 connections.