Mixer at the microphone input of the laptop?

pa
11

I work in a dance school. We have different sources on a mixer, where a large hall is sounded. Now we want to pass this output on via zoom, so we connected the headphone output of the mixer to the microphone input of the laptop.

Because of the combined jack connection, it took us a while to get anything. Now have two options, but neither of them work properly.

If we just plug the mixer into the input, sound comes through, but is completely distorted. It sounds overdriven somehow, but is quiet at the same time.

If we split the combined jack with an adapter and then connect it, we have the same problem in Zoom. However, if we also connect headphones to the adapter, the signal comes out in top quality. Oddly enough, without "listening in" or setting anything else, it just goes through and we don't know why.

I know from other dance schools that did it exactly the same and where it works.

Does anyone have an idea how we can solve the whole thing or what could be the whole thing?

Me

The microphone input on the PC is not suitable, try the line-in.

pa

Unfortunately, the laptop only has the combined jack. Why is this not suitable?

wi

That should not be a problem. Combined blade or single does not matter. As long as you go into the line in at the mixer, everything should work out. If not, get a mini jack to XLR adapter and plug it into the micro input.

Me

If the socket is only for the microphone, it is extremely sensitive, since the microphone has a very low output voltage with high internal resistance. The signal from the mixer, on the other hand, should already have up to 2V and this is much more than with a microphone.

That it still sounds quiet is a protective function?

wi

I just missed the headphone output from the mixer and the jack input from the laptop. That can't work either. Simply split the output signal from the main out from the mixer

pa

Why can't that work? As I said, I know of some colleagues who work for it.

And what do you mean by simply splitting?

wi

The headphone output is only suitable for headphones. It outputs a signal which is optimized for headphones and which is too weak to be used as a main out. The main out is for the actual sound output. From your main out, the signal goes into your boxes. So before you go into the boxes, just split it up. E.g. With an adapter. Then you have the same output signal in the boxes and zoom.

pa

The signal does not seem too weak to me, but overdriven. There are XLR cables for the boxes on the mixer, don't know how to split it so easily

pa

Protective function could be good, it sounds overdriven and sometimes breaks off briefly.

Now I wonder why it works for others. Is there a way to regulate this down at the mixer or something?

Me

You can give it a try, but I suspect that this is practically unwieldy and then overlaid by other noises.

wi

It is overdriven because your laptop can't convert the signal. From the main out already