Audio line out into iPhone mic

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Common Wiggler
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Audio line out into iPhone mic

Post by submute » Sat Oct 05, 2019 6:44 pm

Having trouble getting my iPhone to allow line in audio, any tips? I bought a TRRS adapter for 3.5mm out to TRRS into iPhone as some folks said it might make the iPhone recognize it as a mic device: no go.

What am I missing?

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Post by Phil999 » Sat Oct 05, 2019 9:19 pm

I believe all pins on the other end of the TRRS must be connected correctly. A TRRS-TRS adapter will only short two connections, and will likely not work. You will need a TRRS cable and solder the other end correctly to two sockets, one for the headphone output, one for the line input. If you want to do that. I've done it, but although it works, in the end it's not very practical. If I lived in San Diego you could have mine (I made at least two versions).

There are affordable solutions on the market that are simply better if you use line in often.

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Post by mmp » Sat Oct 05, 2019 9:50 pm

I use a direct box between the line out and the iPhone input.

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Post by xonetacular » Sun Oct 06, 2019 7:34 am

dont bother trying this, even if you have a correct adapter it will sound like shit. get a cheap interface: viewtopic.php?t=148274

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Post by mmp » Sun Oct 06, 2019 8:04 am

I use a setup like this for voiceover sessions in my studio as a phone patch so remote clients can listen in. Works well as a dial up, or through FaceTime & Skype. As a side note, it is interesting to me that the audio quality of a FaceTime video call is better than that of an audio only call.

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Post by beedogs » Tue Oct 08, 2019 12:10 am

current iphones only do mono microphone input and as others have said it's going to sound like shit. get an interface that uses the lightning connector.

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Post by hbc » Wed Oct 09, 2019 11:17 am

This thing works for me: ... le-Devices

You might need a little attenuation.

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Post by RickKleffel » Wed Oct 09, 2019 11:51 am

I bought this and was able to stream an hour live performance doing a soundtrack for radio via Facebook without any hitches [make sure you have your phone plugged in]:

Simple, cheap, works.

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