Audio coming out of only one headphone speaker

  • Thread starter Thread starter Pedro Beling
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Pedro Beling

New member
Hello guys,

First of all I'm a non-native-speaker, so sorry about my English, I'll do my best.

I have an Alesis iO2 and I'm using one adapter (http://www.vitmax.com.br/img/2261.jpg) to plug my headphones into the interface.
The problem is that any sound comes just from one speaker when passing through the interface. When I plug the headphone directly into the notebook it sounds correctly.

I think the problem is the adapter I'm using, can you please recommed me some adapters that may work?
 
The picture you linked doesn't tell us if the 1/8" jack (the small side) is stereo - 3 conductor. I tend to think that whatever you are listening to is getting fed into theiO2 as a mono (1 side only) track.
 
No, not really. You're on the right track. You probably just got a bad adapter. If at first you don't succeed. Adapters are cheap. Buy one and return it if it doesn't fix the problem, and keep trying. If the headphones work and several adapters don't, it might be the interface...
 
mjbphotos said:
The picture you linked doesn't tell us if the 1/8" jack (the small side) is stereo - 3 conductor. I tend to think that whatever you are listening to is getting fed into theiO2 as a mono (1 side only) track.
Click to expand...

Good catch Mike. I didn't consider stereo source in...I assumed there would be stereo speakers also hooked into the AI (that's not a guarantee, is it?) to hear if the source was correct. Pretty sure though, that he's plugging it into the computer he gets good stereo out of the headphone jack of. (Wow, that sentence will confuse non-english speakers).

Could also be a bad USB cable? Don't know how that interface passes stereo signal.
 
Pedro, just trade the adapter for a different one and see if that solves the problem. They're about $2 (don't know what currency you work in).
If that doesn't solve the problem, then we have to consider other options, but for now, let's get the adapter out of the way.
 
Pedro Beling said:
The headphone jack is stereo I guess... Just like this one https://encrypted-tbn2.gstatic.com/...KPNwvmafVcxJ2sVDc7N76uBdn5WQmNviwUpii4Ql5Vx1v

The USB cable is just fine as when I tested the monitors output the sound was perfectly functioning.

Could it be that the adapter doesn't properly fit the AI output?
The adapter it's not lose at all but I can't tell if it's in the perfect place.
Click to expand...

It could be anything from a faulty or misshapen insulator to bad wiring or anything. But the problem is still likely the adapter.
 
Make sure the output you're using is meant for monitoring like that. I had a multi-out interface where the channels were split between outputs, so I had to get an adapter to combine two outs (one left, one right) into a stereo jack. Took me a while to figure that one out.
 
Pedro, are you recording a mono source to a stereo track? If you are recording a mono source (like a microphone) then you may need to first set up as mono the track you are going to record on.
 
That picture you linked in 'post #5' is a 4 conductor one. That would be for headphones with a microphone built in. That could be part of the problem. A stereo one would only have two black rings, not three.
 
Last edited by a moderator:
bouldersoundguy said:
Pedro, are you recording a mono source to a stereo track? If you are recording a mono source (like a microphone) then you may need to first set up as mono the track you are going to record on.
Click to expand...

I'm more inclined to think this is the problem. I am pretty sure you can plug a 4 connector plug into a 3 connector jack.

Pedro, post up some screenshots of the track you're recording.
 
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