#390816 - 02/10/00 05:18 AM
Fostex sync troubles(D-160 and G-16S)
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skeeboheebo
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Registered: 02/10/00
Posts: 16
Loc: Finland
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Hello,to all forum people. Iīm glad to see this forum,it looks quite pro. Now,business...We have been trying sync Fostex D160v2.00 as a slave to FostexG16S with no results...Every trick known has been tried(thatīs a lot),no help. Thereīs only one simple question left. Is there a bug in D-160 v2.00 software or is the sync card(8345) just "long gone"? Itīs no use asking Fostex īcause their low prices seem to be based on "No Support" Oops.. Thatīs all,bye,bye.-Vesa-
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#390817 - 02/10/00 09:00 PM
Re: Fostex sync troubles(D-160 and G-16S)
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Roger Nichols
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Registered: 12/13/99
Posts: 1249
Loc: Miami, Florida
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Vesa
I have not tried your exact combination, but I had a Fostex G24S for a few years. First rule: NEVER use the digital device as the slave. Always make the digital deck the master and the analog machine the slave.
If you make the analog machine the master you will have problems because of the wow and flutter and other speed variations that exist just because it's analog. The SMPTE that you are using is not stable enough to provide a good steady clock for the digital machine.
Try that and let me know
Roger
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#390818 - 02/11/00 03:24 AM
Re: Fostex sync troubles(D-160 and G-16S)
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skeeboheebo
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Loc: Finland
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Hello Roger! Youīre right,thatīs the way it should be done,by the book.However,weīd like to be able to do the "basic" tracks in analog. If we set up the "pro" way,there will be difficulties in transport and stuff...But,hey,as I sit here and think,a thought entered...We used to run it like this: G16 as a master to an Atari(w/C-lab UnitorII) sending MidiClock(Yes,CLOCK!) to the D-160,and the results were acceptable. Doesnīt this mean that somehow the Atari interpolated(whatever that means) the incoming SMPTE and, THEN,sent out a steady clock to which the D-160 was "Free-Wheeling"?(A cool-looking question,huh?) Now,what we donīt know is if the Fostex TC card can handle anything like this,but IMHO it should! I personally believe that they had some nifty program to handle this,on the motherboard EEPROM,but had to make some room for the really clumsy waveform edit mode (can be found behind too many button pushes) in v.2.00! True or BS,I donīt know,but maybe we could have a word from Fostex ? Do you happen to know anyone in the Biz....? ;-) ----Vesa____
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#390819 - 02/12/00 07:17 PM
Re: Fostex sync troubles(D-160 and G-16S)
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Roger Nichols
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Registered: 12/13/99
Posts: 1249
Loc: Miami, Florida
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Vesa
If you are going to cut tracks on the G16 without being locked up to the digital machine, then just leave sync off and cut the tracks with the G16 in stand-alone mode. After you are done, stripe the tape with SMPTE (or before the session if you want) and lock them up. The G16 will chase the digital machine, my G24 did.
I guarantee that there will be wow and flutter in the audio if you use the G16 as master.
MIDI time code is nothing like SMPTE. MIDI time code is only used for positional information, not timing information. MIDI time code is sent in spurts every 1/4 of a second in with all of the other MIDI data to let the receiving computer know where it is
SMPTE is a continuous 2400Hz signal that contains the timing information as encoded bits while the 2400 Hz is a steady resolvable frequency for speed synchronization. The SMPTE, however does contain all of the speed variations of the machine that produces it.
If the SMPTE is played from a stand alone generator or digital machine, then the timebase will be stable. If the SMPTE is coming from analg tape, then it will have all of the wow and flutter of the analog maching. If he digital machine is chasing the analog machine there may be freewheeling built in, but the digital machine will either have to change sample rate rapidly or drop samples to stay in sync with the analog machine.
Even when you make transfers from an analog master tape to a digital machine, the DIGIAL machine MUST be the sync master and the analog maching must be the slave.
If you do it the other way and have problems later, don't come running to me.
Good Luck
Roger
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#390820 - 02/13/00 06:33 AM
Re: Fostex sync troubles(D-160 and G-16S)
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skeeboheebo
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OK,Roger!I think youīre right.In general ,itīs always good to remember that we CAN and must be able to change our work routines sometimes....I donīt if this translates well,but in Finland we have an old saying,"Donīt climb to a tree with your bottom end up! Just what weīve done!Thanks for leading us back to the right track,Rog See you when other issues show up... Peace, -- Vesa--
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#390821 - 02/29/00 05:16 PM
Re: Fostex sync troubles(D-160 and G-16S)
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skeeboheebo
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Registered: 02/10/00
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Loc: Finland
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Roger!
The problem is solved.We took the machine to local importer and they diagnosed that the hard-disk was somehow out of specs. Thatīs something I couldnīt believe was true,allthough I suspected it.So,if youīd like to make some room on the forum just go ahead. Thanks,Vesa
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