This is a new issue that has reared its ugly head a few times.
Here is the signal chain:
Kick > Beta52 > Focusrite ISA 428 > PreSonus Firestudio (Insert Ch1) > PC (Cubase SX3). I run an XLR > 1/4" from the 428 to the FS insert.
Periodically and randomly the level of the signal from the preamp will more than double. I hear this in the monitors (no DAW necessary), and it shows in the recorded waveforms. It literally sounds like the kick head is being blown open w/ each hit. It randomly comes and goes, sometimes w/in the same track/song.
I've traded out the 52 for a CAD kick mic; mic cables, and cable connecting the the 428 to the FS. No luck - it comes and goes on a whim.
The levels on the ISA428 seem to be fine (peaking @ -10db or lower). I get no visual indication of a clip from the preamp, the Firestudio (and Control Console), or inputs on Cubase - only audio indications.
Trying to get ahold of the folks at PreSonus as I type, but thought someone here might have a clue.
Thanks,
Ben
Comments
Thanks Jack - I've got a bevy of different cables lying around,
Thanks Jack - I've got a bevy of different cables lying around, so I have the necessary XLR>TS cables. I'll make the switch.
However, I use the same type of cable to go into both inputs 1 and 2. This is only a problem w/ 1, and only w/ the kick drum. Input 2 is usually dedicated to an OH mic. I also use both channels for voice, acoustic and electric guitar mics, and direct box, but have had no issues w/ these sources.
The frequency and randomness of the noise is what makes this most confusing for me...
It isn't that you need an XLR->TS cable, you need an XLR that go
It isn't that you need an XLR->TS cable, you need an XLR that goes from pin 2 to the ring on the TRS and then tie pins 1 and 3 together on the XLR going to the sleeve of the TRS. The tip of the TRS won't be connected to anything in this scenario.
At least that is my memory of this particular conversion cable.
If the insert is wired T (send) R (return) S (shield/common/grou
If the insert is wired T (send) R (return) S (shield/common/ground/whatever)...
I'd ditch the T on the jack end.
Which is what TheJackAttack said.
Tying the other XLR output that has the inverted signal to the shield shouldn't matter, unless the state of it being connected affects the tone/electrics of it all?
XLR->TS or XLR->TRS? When using an insert it makes a huge diffe
XLR->TS or XLR->TRS? When using an insert it makes a huge difference.