with 6 inputs crackles at higher sample rates

[JoPo]

It smells like a wrong master / slave setting.
Did you try to set ferrofish A16 MkII ADAT as master ?

[ronnie]

Bad cable? Dusty ports? If so, sample rate should not matter when the connection iis good. Try audio on one ADAT and clock on another. I've had that fix this type of problem with certain ADAT masters. Good luck, these may be obvious and you may have tried them already.

[JoPo]

I don't have Ferrofish ... I'm affraid I can't help you more. Did it work correctly before or you just installed it ?

I believe this a job for .... Super G !

One's, I had the amazing chance to take a picture of our hero ! Fantastic !

SuperG.jpg (89.4 KiB) Viewed 10009 times

? ? I'm wondering where he is ! Normally, his super powers should tell him you need help ! ? ?

[garyb]

well....

you have both inputs and outputs connected and the correct setting on the A16?

there isn't much to adjust....

[dawman]

Great pic JoPo

[jksuperstar]

Does the word clock fix for xite affect this?

[garyb]

no.
there's no wordclock fix, really. it just switches the unit from master to slave and vice versa. this only affects the BNC connection.

[jksuperstar]

Check that the ADAT I/O is assigned to DSP 1. All hardware IO goes in & out from there. See below. And move the STM16 to DSP 7,8,9, or 10.

Always a good reference: http://www.hitfoundry.com/issue_07/xitemast.htm

Hardware IOs are always on DSP 1.
DSPs 3, 4, 5, 6 are for the communication with the four slots.
Each slot contains three new Sharc DSPs with the power of six old sharcs each.
Also every new Sharc DSP has 32 MB RAM.
DSPs 1,2,3,4,5,6 are old Sharcs.

The most important DSPs are 7,8,9,10. They have most communication channels to the IO DSPs. The STM1632 is placed on DSP 18 in the Default-Project. It should be better DSP 7, 8, 9 or 10. Same for Micromixer and Dynamic Mixer, the bigger mixers, have their own placement, which can not be changed. At the moment the user cannot place devices to one slot, internally it is possible.

The four slots:

Slot 1: 7, 11, 15
Slot 2: 8, 12, 16
Slot 3: 9, 13, 17
Slot 4: 10, 14, 18

The DSP display should have a special view to make this visible.

DSP Placement: It's always good to place a device on one new DSP. If you need more voices for Minimax, it is better to place it on its own slot and then increase the number of voices. The project 'synths.pro' resides in the //ScopeXITE/Projects/Examples folder where every synth has its own new DSP. In most cases the distribution you have chosen will be loaded next time within the Project, but not always.

Its best to use only the new DSPs for manual placement, e.g. 7 ... 18 and if possible 7, 8, 9, 10. For VDAT you need to use the DSP 2.

If you help XITE to spread DSP power equally and mostly separated to single DSPs if possible, you will get the best results.

[jksuperstar]

Did ou also blow clean air into the adat ports? this is an issue several have seen, and air seemed to help out.

[garyb]

more air. a little dust can be a big problem.
it's possible that hardware is defective on one end or the other but i can't believe that both ports on either device would be bad. that's just not likely. at least one group of 8 should work at any samplerate on each device, assuming that both were broken, with the A16 as slave and both in and out connected.

it's easy for manufacturing dust to get caught behind the doors of the new style ports. both Ferrofish and SonicCore use those. every unit that leaves SonicCore is tested before it's shipped. it's always possible for a part to fail, but i'd be surprised to see a new unit that just didn't work out of the box from either company.

are you sure that the A16 has the correct power supply? just grasping at straws...

[Sounddesigner]

You might need to contact Joergen at Ferrofish and explain to him your situation. He's familiar with the SCOPE Platform since he use to partially own Sonic Core and developed for it. He also designed the converters for XITE-1.
Have you tried connecting the ADATS to any other unit besides the A16 to see if it worked?

[Sounddesigner]

Ferrofish is so small of a company that if you send a email to the zompanies email address more than likely Jurgen will answer it. I copied the email address and physical address for Ferrofish from their website for you. Jurgen's/Ferrofish's info is below:


managing director:

Jürgen Kindermann, dipl. Informatiker
Registergericht AG Montabaur HRB 23540
UStId. Nr.: DE 271540247
WEEE Nr.: DE 988 612 00

Tel.: + 49 (0) 2644 6030605
Fax.: + 49 (0) 2644 6030059

info@ferrofish.de

[garyb]

sure, slave should work. post a screenshot of the Scope samplerate window and routing window in each configuration, if you would. i'm sure that you're doing it right, but this should be much simpler. you shouldn't need to assign dsps or anything like that.

[garyb]

an ADAT loop is kind of a paradox.
it's meaningless, data-wise.
a data stream is really not like an audio stream in any way.

are you absolutely positive that the A16 is on the correct setting?

it would appear that something isn't working correctly, cable, A16 or XITE. just because i keep asking and haven't received a positive answer, you have both in and out cables connected, right? again, it's nearly unbelievable that both the a and b sections of both units would be defective.

these crackles are monitored at the inputs, not the recording, correct?

by the way, i'm the guy that you would be talking to, if Holger was replying...

[garyb]

ADAT devices cannot produce audio with samplerates above 48k unless in S/MUX mode which uses 16 channels to produce 8 channels of audio(the 16 channel converter becomes an 8 channel converter).

i'm not sure what you mean by "At 32K and 44.1K the system is working fine. Even at 48K (with loopback on the A16) it's working up to 48K." that sounds like it's properly usable. you mean that it all works EXCEPT for the ADAT inputs from the A16, correct?

i don't know what synth or how many voices, but depending on circumstances, the DSP error might be normal. at high samplerates some of the heavier synths might need to be loaded to it's own DSP and voices might be limited. there are a number of different resources involved and of course, there's always a limit. right now, i'm just trying to understand the puzzling behavior that you describe. in the worst case, you can write me in support and i can arrange an RMA for testing.

perhaps someone else you know has an ADAT device that you can test with...

[garyb]

wave drivers suffer from random crackles in 64bit. this is a known bug.
it shouldn't be really bad, though. be sure that windows is set to the same samplerate as Scope.

[Ambient Source]

I have a similar problem with my Xite 1D and my Ferrofish A16 AE,
the Ferrofish and the Xite cannot connect to each other without this problem of crackles,
The only way I could get things to work was to have the A16 connected to my PCI Scope System
and the run the adat into the Xite...works fine this way with no crackles

my original thread is here http://forums.scopeusers.com/viewtopic.php?f=1&t=33938

[Ambient Source]

I think it's a problem with the Xite, but the weird thing is that both the A16 and the Xite both work fine with the Scope PCI system.
the same cables work between other devices, and I used 2 cans of compressed air on the Xite and the A16 to clean the ports.
To be honest, I've given up trying to solve it.
But it's frustrating as hell!
I'm seriously thinking of selling the Xite and just using the old PCI scope cards.

[garyb]

if it works with one ADAT device, it should work with all of them.
if it won't sync via ADAT, it should sync via wordclock BNC.

feel free to write to support. i can arrange an RMA for testing.

i have used the A16 Mk2 with several different XITEs and never had a problem. there isn't an issue with the two devices.

[garyb]

ok, i'm on it. we'll figure it out.