Sounds like mine sometimes. Is your usb connected?
For me depending on what usb gear I have hooked up, determines how bad the noise is.
It has to do with the a ground loop between the audio and usb.
I’ve been considering getting a hum eliminator/transformer isolator or even a usb isolator.
It can be really annoying!
The other option is to turn off charging mode, I believe on fnc + com. Just remember to turn it back on!
Thanks for the info but the noise is there all the time, with or without usb, charging mode disabled or not
I’m starting to think my IO is somehow busted
^ I think that is “normal”, at least mine does that as well… the OP-1 input circuit seems very susceptible to digital noise, probably created by itself.
I can’t remember now if the gain control applies to the line in or just the mic, if both then you could try leaving it at the lowest setting and pre-amping your signal externaly.
@punji yes it seems the noise is created by the OP-1
i can hear variations in the hiss depending on what page i’m on. if tape is running for example i can hear the internal clock “ticking” (and it isn’t the metronome)
and no gain control doesn’t affect it.
it’s odd because my previous op-1 had a different kind of constant hiss but which was smoother sounding. i actually liked it
i could tune it with the volume knob and the noise wasn’t recorded.
"it's odd because my previous op-1 had a different kind of constant hiss but which was smoother sounding. i actually liked it
i could tune it with the volume knob and the noise wasn't recorded."
If i had to guess that's because your old OP-1 was on a previous OS which had different noise floors ( which i remember was disscussed on the old opeewon site)
It does not quite fit the slick, impeccable design of the object,
but is definitely part of the sonic “character” of it.
For a while I hoped that they would fix it, but at this point it’s clear that the noise will never go away.
nope, was the same OS !
ah well, guess i’ll just have to forget about it…
thanks again guys