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need help with a simple xlr to 3.5trrs cable wiring

kyborgFTW

Jun 14, 2014
1
Joined
Jun 14, 2014
Messages
1
so i want to plug an xlr into a 3.5mm on a phone for recording samples on the go.
the phone is a nexus5 and the mic is a ntg2 (it has a battery installed so it wont need phantom power)
iv wired it up as if its a TRS to XLR lead for the studio to find out that it dosent work in the phone jack.
so the phone takes a TRRS plug as in this picture http://goo.gl/SrSN9u
but iv got a TRS as in this picture http://goo.gl/S9fmsi

is there some way to make this work?
if i wire the positive from the mic into the sleeve on the TRS and the ground to the tip or the the ring (the speaker outputs) will that work? or cause a potential problem in my phone

allso i realise going out and buying a TRRS would be my best option but i live in the middle of no where and wont be going to the shops for quite a while and im allso just curiouse to know if theres a way this can work
 

KrisBlueNZ

Sadly passed away in 2015
Nov 28, 2011
8,393
Joined
Nov 28, 2011
Messages
8,393
Hi there and welcome to Electronics Point :)

I think you'll need a TRRS plug. If the Nexus 5 works with standard headphones, then the TRS contacts are left, right, and ground respectively. The extra ring is the microphone input. So with a TRS plug, you can't connect to the microphone input.

There's also the issue of the Cannon connector having a balanced signal while the Nexus has an unbalanced input, but the loss of signal quality and increased susceptibility to interference that you would get from feeding a balanced signal into an unbalanced input is probably small compared to the loss of accuracy due to the signal processing that the Nexus 5 will probably apply to the microphone input signal.

If you want good quality samples, you would be better to buy an external USB sound card with built-in microphone preamp(s) and use it with a laptop.
 
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