T.R | Title | User | Personal Name | Date | Lines |
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863.1 | | SALSA::MOELLER | Co. confidential acronyms.. | Mon Jul 13 1987 13:49 | 9 |
| Hi, Jeff, Karl from AZ here.
I have a sync box and 8track Fostex setup. However, it sounds as
if your problem is that the 8track is poorly adjusted; the level
being recorded doesn't match the displayed input level. You might
try just a single sinewave-type note, comparing the VU level off
tape compared to the input signal.
best. karl moeller
|
863.2 | Signal=Unknown, ~speed=Sync error | EMERLD::SCHAFER | Old Age+Treachery > Youth+Skill | Tue Jul 14 1987 14:40 | 12 |
| I had a similar problem with speed up/slow down when trying to sync
from a TR707 to a tape deck. Signal was not the problem - but digital
feedback was.
When the tape sync lines were connected and the 707 was NOT syncing to
tape, the problem appeared. Also happened when the 707 was set to
external clock and was still connected to tape sync lines. Real weird.
Good luck - I've not tried syncing my ESQ to tape. Let us know
what happens.
8^)
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863.3 | Synch Plug ! | MINDER::KENT | | Wed Jul 15 1987 03:46 | 16 |
|
Hello Chaps Remember Me ?
I guess these things are sent to try some of us. I have been syncing
to a Fostex M80 recently without any trouble. I have just coupled
the synch out of MY Qx5 straight to track 8 (no Mixing but with
Dolby C on) of the deck and it all worked no problem. The only minor
glitch which I guess was inexperience was when playing back I started
the sequence and then the Deck. When the sequencer picked up the
first taped tone it blobbed a beat and then stopped again, waiting
for the clock signals. I have cured this by starting the Deck first
and then pressing "GO" on the sequencer.
Paul.
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863.4 | Noise reduction | DREGS::BLICKSTEIN | Yo! | Tue Feb 07 1989 10:51 | 29 |
| I also have encountered a problem using the FSK on the Ensoniq
SQ-80.
I have the SQ-80 audio output going directly into a channel on the
4-track. When I plug the tape sync out of the 4-track into
the tape in of the SQ-80, I get an annoying buzz. Unplug it,
and the noise goes away.
The SQ-80 has a 3-prong type power cord. I've lifted the ground
by putting a 3-prong-to-2-prong adapter on the SQ-80's plug.
The 4-track (Yamaha MT1X) has a two-pronged wall bug type thing).
Both electrical plugs are plugged into the same power strip.
Any ideas on the cause or the cure?
db
p.s. It's been my experience that getting noise out of a system
is a constant and royal pain and a tremendous consumer of my
time. It almost seems like a standard step in my "setup
procedure".
Does anyone else have regular noise problems like this. What
things can I do to avoid noise? I use good cords, all my
stuff is plugged into the same power strip, I use ground lifts
on most of the 3-prong stuff.
And yet I still ALWAYS have problems.
|
863.5 | Solution (if anyone's interested) | DREGS::BLICKSTEIN | So What? BEEG Deal! | Fri Feb 10 1989 10:33 | 19 |
| Well, not too much interest about this problem, but I found a solution
and I'll describe it just in case someone else ends up with the
same problem.
I tend to think that anyone using the tape sync feature will have
this problem (noise). Even if you think you don't, you might
want to try comparing the noise level when the tape sync connection
is made with when it is not (i.e. hook it up for tape sync and
then just plug and unplug the tape sync cord and compare the
noise level).
Anyway the solution is a trick I hadn't thought to try even though
it has often worked for me in other noise situations in the past.
When I pull the tape sync cord slightly out of the sync out port
of my recorder (it's an RCA plug), the noise goes away and yet
tape sync still works.
db
|
863.6 | Maybe something in either the deck or the Ensoniq | TYFYS::MOLLER | Halloween the 13th on Elm Street #7 | Fri Feb 10 1989 13:02 | 18 |
| Sounds like some strange problem relating to grounding. I've been doing
this sort of thing between my MMT-8 and TEAC #144 for quite some time
(I plug the tape out of the MMT-8 to track 4 on the Teac, and connect
the tape in on the MMT-8 to the CUE out on the Teac). When I record, I
usually put in an instrument playing to another track so I can hear
about where I am within a song. I record the MIDI sync at about 0 db,
and when I play back, I set the cue mixers for 1, 2 and 3 to 'no
output', and set the 4 cue level to half (50%) level. I've had no
trouble with this. I like to record the drums on my MT-32 seperately
from the rest of the song (it sounds nice with a touch of Exciter
added), then seperate the Bass instrument and everything else onto
a seperate track. I've also used it where I turn the 4 track into a 3
track (for vocals, guitar, etc.) and only supplied the MIDI sync to
the sequencer to play back (It's interesting when you select the wrong
song during playback). Seems to work well & the DOLBY B seems to have
no effect (I can't turn it off on the #144).
Jens
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863.7 | on Midi sync, line and AC grounding | SALSA::MOELLER | A bazillion MIPS ?.... really ? | Fri Feb 10 1989 14:09 | 29 |
| > < Note 863.5 by DREGS::BLICKSTEIN "So What? BEEG Deal!" >
> I tend to think that anyone using the tape sync feature will have
> this problem (noise).
I use a Yamaha YMC-10 unit into track 8 of a Fostex A8LR.. I have
NEVER noticed ANY side effects from using tape sync.. it's its own
little circuit, and does not affect the other tape outs going to
the patchbay and thence to the mixer(s). The MIDI feed to the YMC10
comes from a SONUS MIDIswitcher. The MIDI feed FROM the YMC10 goes
directly into the KX88 MIDI in port.
> When I pull the tape sync cord slightly out of the sync out port
> of my recorder (it's an RCA plug), the noise goes away and yet
> tape sync still works.
Well, the outer rim of an RCA plug is the ground, the center is
hot.. possible for you to set up a 'floating' ground ? Like a long
Lo-Z mic cord, two grounds.. one end-to-end, the other grounded
only at one end ?
re .4 (Brad I think) .. grounding probs. I have only one problem,
that's a 'pop' in my system when my refrigerator cycles on and off.
That's it. I use several AC power strips, all going to the SAME
wall outlet. I use no ground lifts on my gear, which is mostly
rackmounted (in a steel rack), yet I have no ground buzz/hum.. and
that rack is FULL. Just lucky ?
karl
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863.8 | Ground Loop ??? | OTOO01::ELLACOTT | Freddie's Revenge | Fri Feb 10 1989 14:17 | 9 |
| It sounds to me that what you are experiencing is the dreaded
***GROUND LOOP***. The best way to cure this is with single point
ground for the whole system and only one path from each piece to
that ground point. To accomplish this you may have to modify some
of your patch cords so that the ground (shield) is only connected
at one end, the shield will still do its job
FE
|
863.9 | Product specific maybe? | DYO780::SCHAFER | Brad - back in Ohio. | Fri Feb 10 1989 18:07 | 14 |
| Naw, Karl, it wasn't me, but I'll throw in 2� anyway.
A friend of mine who has an ESQ-1 stopped over yesterday, and was
having the same problem. We went thru the same procedure as outlined
in this topic, and he *still* had the trouble.
Makes me think that there's something fishy about the (E)SQ. This
silly thing wouldn't be expecting a *stereo* pin (3 leads), would it?
I've used sync with my 144 and a 707 with no noise at all. I've never
tried using my HR. And the only thing in my system that's got a
ground is my OB-Xa.
-b
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863.10 | Are you sure you lifted the ground? | DREGS::BLICKSTEIN | So What? BEEG Deal! | Mon Feb 13 1989 08:06 | 46 |
| > We went thru the same procedure as outlined in this topic and he
> *still* had the trouble.
If you're friend is experiencing the exact same symptoms (I.E. removing
the tape sync connection removes the noise), it's hard to imagine
that he doesn't have the same problem. Thus it's hard to imagine
why my fix doesn't work.
Are you quite sure that you removed the ground connection?
I'm not an expert at this stuff, but I'm pretty sure that you could
only duplicate my procedure if one end of the plug was an RCA type
pin. My MT1x (4-track) has RCA plugs, but that's pretty unusual.
Most stuff is, obviously, phone plugs. I don't think that
pulling a phone plug halfway out won't lift the ground.
If you knew all this, don't consider it an insult of YOUR intelligence,
but rather a "reflection" of mine as I am incredibly illiterate when
it comes to electronics (this despite the fact that my father is
in "Who's who" for his accomplishments as an electrical design
engineer).
db
p.s. At the risk of contradicting myself, there is one experience I've
had where pulling a phone plug halfway out had an effect on
something (an effect different than pulling the plug ALL the way
out that is).
I had this ancient (like 1940's) Revere 7" reel-to-reel MONO
tape player/recorder. It had a PA mode where the microphone input was
amplified and output to the builtin 7" elliptical speaker.
This thing was effectively my first guitar amp, but it couldn't
go very loud and the sound was way too thin for a guitar amp
(no harmonics).
One day I plugged in and all of a sudden it became this loud
incredible sounding Marshall-like amp. I eventually discovered
that the guitar cord was only plugged in halfway which I discovered
(through an obvious experiment) was what made the difference.
Lots of guitar players with Fenders and Marshalls admired my
Revere and wanted to buy it. It really had incredibly smooth
distortion and unlike the Fenders and Marshalls, you didn't have
to go quite as loud to get it.
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863.11 | That's an over generalization I would never have made | DREGS::BLICKSTEIN | So What? BEEG Deal! | Mon Feb 13 1989 08:11 | 18 |
| re: .7
>> < Note 863.5 by DREGS::BLICKSTEIN "So What? BEEG Deal!" >
>> I tend to think that anyone using the tape sync feature will have
>> this problem (noise).
> I use a Yamaha YMC-10 unit into track 8 of a Fostex A8LR.. I have
> NEVER noticed ANY side effects from using tape sync..
Karl,
I was speaking of the "tape sync feature" with respect to the
ESQ-1.
db
|
863.12 | counter-example | NEWFUN::GEORGE | | Mon Feb 13 1989 18:30 | 7 |
| It's not an ESQ-1 problem. ESQ -> Tascam 244 @ -5db has worked fine
for several months.
It makes an *ugly* buzz if the track volume isn't turned off. Duh.
Happy Monday,
Dave
|
863.13 | Problem with ESQ-1 but not ESQ-1 problem | DREGS::BLICKSTEIN | So What? BEEG Deal! | Tue Feb 14 1989 09:46 | 6 |
| I think we've clearly established that it's a ground loop problem
which means that it's not so much an "ESQ problem" as a problem
that you can have WITH an ESQ depending on what else you've got
it plugged into and how it's grounded.
db
|