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[kohrobby]

i've recorded a whole album to 1/2 inch 16 track and have started mixing, and tonight i've started having a progressive loss of hi-end. cymbals are completely phasing out. i have cleaned the heads several times and have been doing so throughout the session. this is completely freaking me out as it seems to be getting worse.....please advise.

[j.hall]

1/2" 16 track!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

WOW, those are narrow track widths!!!!

if you aren't pulling gobs of gunk off the heads when you clean the deck then you can probably stop cleaning it every few hours and just clean it before use and sometime in the middle of the session.

i'd check the alignment of the deck.

do you have noise reduction on this deck?  check to see if it's engaged in the proper mode.

[bblackwood]

Demagged recently?

Check alignment for drift?

[malice]

could be a lot of things

cleaning, demag, bad allign.

Does it react the same wherever you are in the tape ( beguining or end of tape ) ?

Cause it can be a cabstan tension problem as well

malice

[j.hall]

capstan tension problem?

i'd think that would effect speed more then frequency response.

granted speed and frequencies are tied together, but wouldn't he notice a dip in tape speed first?

i'm honestly asking, not trying to be argumentative.

while cleaning the deck, are you using a good rubber cleaner on the pinch roller.

i've seen MANY nasty pinch rollers that caused all sorts of problems (related to speed) in my short time dealing with tape decks.

[malice]

Dear Jerry,

the reason I raised this problem is that I recently had the case with an MCI 2 track machine. As soon as the tape was reaching the end, the capstan couldn't tie the tape properly against the heads causing slight loss in hi frequencies...

a rather odd problem, but I did had this problem as I describe it to you.

And the speed was ok

I'm not trying to start an argument here Jerry

I'm not used to your place, it would be bad form from me to tell lies the first post I make


best

malice

[j.hall]

malice wrote on Wed, 06 April 2005 08:44

Dear Jerry,

jerry springer?

Quote:

the reason I raised this problem is that I recently had the case with an MCI 2 track machine. As soon as the tape was reaching the end, the capstan couldn't tie the tape properly against the heads causing slight loss in hi frequencies...

weird.  i've had similar problems with MCI decks that had horribly dirty capstans and pinch roller, but my problem was tape slipping and the machine going totally crazy.

Quote:

a rather odd problem, but I did had this problem as I describe it to you.

i don't doubt you.

i've had MCI's do the weirdest things like, drop out of record in the middle of a punch and go to some random locate point and start playing.

i've had them:
- not punch in on tracks i have armed
- not toggle between live signal and recorded
- hit the stop button and have the deck go into rewind
- had it locate 1 second behind the forward 1 second ahead over and over but never stop on the actual locate point.

Quote:

I'm not used to your place, it would be bad form from me to tell lies the first post I make

well, you are french.......................................

[kohrobby]

thanks fellas, i'm about to demag again, haven't done that in the last 10 hours or so on the machine. captan tension sounds like it could be the culprit whereas sometimes afters engaging "stop" the tape kind of rolls into a slow rolling neutral. doesn't all the time. but maybe twice a session. capstan related, yes?

and yes, it is doing this (as far as i've checked) just on the hi-end of this song, about 2/3 thru on the tape.

thanks again!

[floodstage]

kohrobby wrote on Wed, 06 April 2005 10:35

.....<snip> it is doing this (as far as i've checked) just on the hi-end of this song, about 2/3 thru on the tape.....

Hope you have a backup.  Sounds like the tape itself has a problem

[malice]

j.hall wrote on Wed, 06 April 2005 16:18

malice wrote on Wed, 06 April 2005 08:44 Dear Jerry, jerry springer?

LMFBO


Why on Earth did I assume "J." is standing for Jerry ????

I realise my mistake, sorry about that

Weird

But as you said : I'm french  


malice

PS: kohrobb, yes, that sounds like the problem I had ...btw tension related stuff is not easy to handle by yourself, you need special tools for that so my advice would be to ask a proper tech to check on that

[j.hall]

malice wrote on Wed, 06 April 2005 09:44

Why on Earth did I assume "J." is standing for Jerry ????

it stands for Jason.  

Quote:

I realise my mistake, sorry about that

naw, i thought it was funny.  no appologies.

Quote:

But as you said : I'm french

FREAK................hahahahahaha

Quote:

PS: kohrobb, yes, that sounds like the problem I had ...btw tension related stuff is not easy to handle by yourself, you need special tools for that so my advice would be to ask a proper tech to check on that

i'm still not convinced the issue is with the capstan.  but i totally agree with malice.  throw up the white flag and call a tech in there to set that deck up properly and check your capstan/pinch roller tension.

demag every 10 hours???????????????????????????

i had a tech bring over some crazy contraption that reads magnetic levels.  we hadn't demagged the MCI in MONTHS.  and there was hardly any trace of the metal parts holding a magnetic charge.

i demag a couple times a year, maybe i'm crazy, but i've never once had a problem with any of the decks i've used in this particular topic.

[NelsonL]

malice wrote on Wed, 06 April 2005 07:44

j.hall wrote on Wed, 06 April 2005 16:18 malice wrote on Wed, 06 April 2005 08:44 Dear Jerry, jerry springer? LMFBO Why on Earth did I assume "J." is standing for Jerry ???? I realise my mistake, sorry about that Weird

As in Jerry Hall, former wife of Mick Jagger?

[bblackwood]

rattleyour wrote on Wed, 06 April 2005 10:54

As in Jerry Hall, former wife of Mick Jagger?

That was before 'his' surgery...

[cgc]

Quote:

demag every 10 hours???????????????????????????

As I recall, doing demag improperly is worse than not doing it at all.  Performing this as some sort of diurnal ritual probably increases the chance of something going wrong.

[kohrobby]

 yeah, not to say that i DO demag every 10 hours, i'm just sayin that i demagged just prior to starting the session. prolly have put roughly 10 hours on the machine since. machine was demagged @ four months prior.

yeah, as far as any alignment issues, i know barely enough to be dangerous. very. so if i don't get any in house resolution, i'll get out the tech checkbook....