Doctor Varney
Cave dwelling Luddite
I wonder if anyone could explain what is happening here?
Just lately, I've been running a line from the output of the on-board Realtec sound chip of my internet/ office computer to a line-level stereo input on my Behringer 1204FX mixer. The connection comprises a 6 meter audio cable which goes from a small jack to phono x2 and converted to 1/4 in. x2 jack using phono->jack mono adapters.
On a couple of occasions I have received slight (but noticeable) shocks when handling the 'live' phono connectors and accidentally touching the ends.
Last night, I was listening to a Youtube video on line 7/8 with the preset level selector button of that strip set to +4. Part way through the song, the sound scragged out to a blurred crackling mess, so I stopped the video and pulled back the fader. I tried several different videos (which I've listened to before) and the same happened again. So I toggled the level preset button to -10 and the problem went away.
I have discovered that if I use this particular connection with +4 selected the sound starts off fine, then suddenly degrades but if I keep the button set to -10, the problem doesn't occur. Obviously, it's a quieter setting but easily compensated for by giving it a little bit more on the fader.
Is this normal and anything to do with 'balanced/ none balanced lines' or would you suspect there could be something wrong? Is it normal to receive an electric shock from (what I assumed was) a passive audio cable coming from the computer?
Thing is, I can't say I've ever noticed this phenomenon when I have connected other machines to my mixer in the past using the same cable and adapters. So, naturally, I felt I just had to ask.
Thanks
Dr. V
Just lately, I've been running a line from the output of the on-board Realtec sound chip of my internet/ office computer to a line-level stereo input on my Behringer 1204FX mixer. The connection comprises a 6 meter audio cable which goes from a small jack to phono x2 and converted to 1/4 in. x2 jack using phono->jack mono adapters.
On a couple of occasions I have received slight (but noticeable) shocks when handling the 'live' phono connectors and accidentally touching the ends.
Last night, I was listening to a Youtube video on line 7/8 with the preset level selector button of that strip set to +4. Part way through the song, the sound scragged out to a blurred crackling mess, so I stopped the video and pulled back the fader. I tried several different videos (which I've listened to before) and the same happened again. So I toggled the level preset button to -10 and the problem went away.
I have discovered that if I use this particular connection with +4 selected the sound starts off fine, then suddenly degrades but if I keep the button set to -10, the problem doesn't occur. Obviously, it's a quieter setting but easily compensated for by giving it a little bit more on the fader.
Is this normal and anything to do with 'balanced/ none balanced lines' or would you suspect there could be something wrong? Is it normal to receive an electric shock from (what I assumed was) a passive audio cable coming from the computer?
Thing is, I can't say I've ever noticed this phenomenon when I have connected other machines to my mixer in the past using the same cable and adapters. So, naturally, I felt I just had to ask.
Thanks
Dr. V