Is it possible for an input connector to fail on an audio 4 dj?

Usherman

So this seems to be the issue as far as I can tell.

The left input channels work normal with my turntables. The right side is missing one channel. So far my problem solving has included this -

Both turntable RCA's checked plugged into the mixer phono - both working in stereo.

Mixer swapped out to test for the same problem - same issue

All cables tested and swapped with new ones (incl multicore)

Needles cleaned, swapped and tested

Turntables swapped, same issue. Can rule out it is nothing to do with my decks.

Time code vinyl is brand new and clean

My desktop pc has more than enough power to run Traktor -

Ryzen 5600x / Nvidia 3080ti / 16GB Ram @ 3600mhz / Traktor installed on an M.2 drive

screen from the affected channel while running (strange it shows both coming through equal at the top)

screen from the left channel that runs fine

and a screen from audacity to show the levels coming out of the right channel. It does show a little output, but this can't be heard over the speakers.

So unless anyone else has any ideas, I feel it might be a hardware issue of my Audio 4. I've had it since 2011, however it has been looked after well like all my dj equipment.

Any advice and help would be much appreciated.

Cheers.

lord-carlos

My gut feeling says there is nothing wrong with the input, but either with the recording or that exact track you used. (If there would be something wrong, the DVS scope would look different.)

But lets confirm it: play something in the right record player and open the input routing settings.

Do you see two of those blue bars on the right side?

If you see two bars everything is gucci. Check your recording settings.

Usherman

Thanks for the reply. Seems to be fine. All mp3's tested are legit purchases from iTunes. Tested two different ones and the result was the same. The issue is, I still have the missing channel problem when I'm not recording. I'm totally stumped. Everything points to it being fine. I only included a screenshot of Audacity as visual proof that's something's up. If I remove the RCA from the Audio 4 channel B 4 "in" while it's playing, there is no difference in the sound I hear from my stereo system. Plug it back in and the result is the same but the card is telling me everything is normal and the output is in stereo.

lord-carlos

Well now we know it's not the input or DVS :)

If I remove the RCA from the Audio 4 channel B 4 "in" while it's playing, there is no difference in the sound I hear from my stereo system

Well yes, because you are playing a timecode vinyl. It's there to figure out where the playhead it. It does not control the sound. But anyhow, that does not matter right now.

Can you take a screenshot of Input and output routing settings? And also mix recorder settings please. Thank you.

Usherman

So looking at this screenshot I clearly see that all my input decks are set to "L mono" For the life of me I don't know why I didn't notice that before…. I feel we are zeroing in on the problem. Question now is, how did it end up like that and how to re-set it?

Output routing

Mix recorder

Usherman

I've got a feeling that maybe the root cause of this resides in my pc settings…

lord-carlos

All the settings look good. Besides mix recorder. That will only record one deck. But even then it should record stereo.

How did you create the recording from your screenshot? With traktor or with audacity?

Usherman

So that recording is Audacity recording Traktor. Line out from my mixer and lined into my mic input on the rear of my motherboard.

lord-carlos

And what about the speakers? Do you get stereo there?

What you could do is switch the cable on the OUTPUT of the A6 around, the ones that goes into the input of your mixer. And then see if what happens.

If you still only get right side: something wrong with the mixer.

If you only hear left side: something wrong with A6 or the cable.

Usherman

No it only comes out of one speaker. The mixer is brand new and I had the same problem with my previous mixer. I have the A4 so I can't do what you suggest…The only other thing I have yet to test is to plug my old laptop in which has the previous version of Traktor.

Usherman

Is there any setting to change my input decks so both channels are stereo? It's weird that all the left sides are in mono.

lord-carlos

https://community.native-instruments.com/discussion/comment/144449#Comment_144449

Ah sorry, I meant A4. The deck that is not working right, switch the two cables around so Left goes into right, and right into left.

Maybe one of the outputs is defective.

https://community.native-instruments.com/discussion/comment/144450#Comment_144450

Nothing is mono, it's all correct. If you just assign L traktor will convert it to mono, but you correctly assigned both sides.

Usherman

So when I swap left and right, the sound just moves to the opposite speaker…. which circles me back around to thinking that it's a hardware issue. I've managed to source an Audio 8 for $120 which I'm picking up tomorrow, so I'll post the results of plugging that in. Thanks for helping me with this, much appreciated

lord-carlos

Yeah, sounds like an OUTPUT was the issue.

Keep in mind the Audio 8 is quite old and no longer supported. But should still work on windows.

Audio 6 and 10 are newer I think. I managed to get a Audio 6 for 90 EUR and sometimes see them for 50 bucks. They also have direct path through if you want to play real vinyl without going through traktor.

PK The DJ

Line out from my mixer and lined into my mic input

IMO that's probably where you're going wrong. Mic inputs are typically mono.

You should be plugging into a LINE input (as the mixer output is LINE level) which will be stereo.

lord-carlos

It's already one channel only on the speakers. So I doubt it's the recording.

One questions though, you do get stereo on the other deck right? It's only one deck that gives trouble?