Ticking noise during recording?

fajonze said:
...
I took out the return line out and plugged my headphones into my recorder, the ticking wasn't
present. It must be coming from the return line connection somehow, tt doesn't seem to be recording onto the mix so I guess i'll just live with it.
Click to expand...

I mentioned this before. The return from The recorder is expecting a line level in and your hitting it with a headphone out, that is essentially a not to powerful amplifier out, since headphones are just small speakers. There are a stack of reasons that could be causing problems. First it's not as clean a signal (in general) It's about 100 times The signal that The mixer is expecting, it may well not be the same ground, in fact it almost certainly isn't the same ground, and you have a serious impedance miss match. All of these could lead to "ticking". It sounds like your picking up harmonics off the clock. Since your return should be a relatively weak shielded cable and your using the headphone out instead it probably opens you up to picking up that kind of RF.
 
I used my iPhone all day today and it was literally inside my bag.
I was bored out of my skull doing interviews in a studio so I just put the phone where my hands usually are on the knobs
and surfed online all day ;)

No audio issues at all.
 
Rippie said:
I used my iPhone all day today and it was literally inside my bag.
I was bored out of my skull doing interviews in a studio so I just put the phone where my hands usually are on the knobs
and surfed online all day ;)

No audio issues at all.
Click to expand...

That is impressive. I take mine and lean it against the mixer in the classroom so the students will all know the sound. It never fails to bleed (Quite loudly) into the system whenever it calls home.

This is a early model so maybe they fixed the later ones? I find it needs to be about 10 feet from cables etc before I don't pick up a periodic warble.
 
Noiz2 said:
That is impressive. I take mine and lean it against the mixer in the classroom so the students will all know the sound. It never fails to bleed (Quite loudly) into the system whenever it calls home.

This is a early model so maybe they fixed the later ones? I find it needs to be about 10 feet from cables etc before I don't pick up a periodic warble.
Click to expand...

I have a pro tools system at my house (as you know) and I know back when I was doing a small indie on it the director had a 1st gen iPhone.
The thing came through loud and clear though everything. I noticed though that my 3rd gen version didn't make any sound through my system.

I'm sure my 552 field mixer is much better shielded for that kinda thing compared to my rig at home so
I'm sure that explains it.

On the other hand I cant get my 3rd gen iPhone anywhere near my comtek 216 transmitter, but those things are built pretty crappy RF wise.
 
Noiz2 said:
I mentioned this before. The return from The recorder is expecting a line level in and your hitting it with a headphone out, that is essentially a not to powerful amplifier out, since headphones are just small speakers. There are a stack of reasons that could be causing problems. First it's not as clean a signal (in general) It's about 100 times The signal that The mixer is expecting, it may well not be the same ground, in fact it almost certainly isn't the same ground, and you have a serious impedance miss match. All of these could lead to "ticking". It sounds like your picking up harmonics off the clock. Since your return should be a relatively weak shielded cable and your using the headphone out instead it probably opens you up to picking up that kind of RF.
Click to expand...

ahh that makes sense! thanks for explaining that Noiz2 no more worries here but to everyone else, thanks for your input if only I had an Iphone it'd be all gravy.
 
Rippie said:
I have a pro tools system at my house (as you know) and I know back when I was doing a small indie on it the director had a 1st gen iPhone.
The thing came through loud and clear though everything. I noticed though that my 3rd gen version didn't make any sound through my system.

I'm sure my 552 field mixer is much better shielded for that kinda thing compared to my rig at home so
I'm sure that explains it.

On the other hand I cant get my 3rd gen iPhone anywhere near my comtek 216 transmitter, but those things are built pretty crappy RF wise.
Click to expand...


The Wife can't use any GSM phone, the 3 gs iPhone included. The GSM signalling gets picked up by her hearing aid. CDMA does not have this problem, and the current debate is to switch to the Verizon CDMA based iPhone. She uses the iPhone, but text/mail/surfing only. (There's a special data plan only offered by ATT for the deaf and hearing impaired.)

While the iPhone models may have improved noise, I think GSM is just plain 'crappy' in this regard... but the licensing was cheap... unlike Qualcom's CDMA...
 
Chadfish said:
It could be a cell phone. I hear that when my phone s too close to my cables, even in my studio. It's a click, but with a faint tone too. Almost like the muffled sound of the internet connecting back in the old days of dial-up.
Click to expand...

My experience of GSM signaling being folded into audio circuits, is that it is a 'burst' interference, not a continuous interference, at least for a phone that is just 'around'.
 
j1clark@ucsd.edu said:
My experience of GSM signaling being folded into audio circuits, is that it is a 'burst' interference, not a continuous interference, at least for a phone that is just 'around'.
Click to expand...


Yeah, I would get this with my MyTouch 3G slide with T-Mobile. I'd hear it come through my monitors on my pro tools system. It was a good warning before I was about to get a call or a text message.
 
Were you in the vicinty of any military or civil outfits .. ambulance etc even ham wireless folk. RF is getting worse by the day, in the canyons of most big cities now you can throw a piece of white bread up in the air and it comes down toast HTH

Cheers.
 
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