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Omnia ONE Dropout Issue

J

jorr

Hi All,

I know I have heard of this issue in the past from others, but I can not find any info on it doing searches.

I have a broadcast tools ADMS 44.22 feeding AES/EBU audio into an omnia one. When hooked up this way, I have intermittent audio dropouts on the Omnia, including the input/output meters dropping down. This usually occur in pairs every few minutes. However, if I hook the satellite receiver straight to the Omnia via AES there are no issues. Nor, are there issues when analog is run between the BT box and the Omnia. Also recording AES to the automation system from the BT box has no dropouts. The only way dropouts occur is when the BT box is straight into the Omnia.

Everything is set to 48khz, and the Omnia is set to get timing from the AES input.

Any thoughts or suggestions would be appricated!! This one really has me stumped. ??? ??? ???

Thanks,
Jeff
 
Please contact Omnia Customer Support (216) 251-7225.

-Frank Foti

jorr said:
Hi All,

I know I have heard of this issue in the past from others, but I can not find any info on it doing searches.

I have a broadcast tools ADMS 44.22 feeding AES/EBU audio into an omnia one. When hooked up this way, I have intermittent audio dropouts on the Omnia, including the input/output meters dropping down. This usually occur in pairs every few minutes. However, if I hook the satellite receiver straight to the Omnia via AES there are no issues. Nor, are there issues when analog is run between the BT box and the Omnia. Also recording AES to the automation system from the BT box has no dropouts. The only way dropouts occur is when the BT box is straight into the Omnia.

Everything is set to 48khz, and the Omnia is set to get timing from the AES input.

Any thoughts or suggestions would be appricated!! This one really has me stumped. ??? ??? ???

Thanks,
Jeff
Click to expand...
 
Actually, Frank fat fingered the phone number. You should call 216 241-7225!

FFoti1 said:
Please contact Omnia Customer Support (216) 251-7225.

-Frank Foti
Click to expand...
 
Hi, Jeff.

My gut feeling is that you are dealing with some sort of an AES timing issue. That's about all I can speculate here,
but, as Frank has said, give our support team a call, and they can investigate with you further.

-Cornelius
 
What is the setting on the AES input on the Omnia One?(should be sync to input)could be a problem on the word clock sync on the switcher.Have you talked with broadcast tools?
 
Try putting a scope on that AES signal. I would almost bet you'll find it's far from nice squared up pulses. What type of wire are you using and how far from the BT to the One? I agree also that the timing may be a source of problems. Check your settings to see where you are set to get sync from and the settings for rate.
 
External Sync: Allows the output sample rate to be synchronized to an AES3 signal applied to the Ext. Sync input connector. (Does not accept Word Clock inputs)


could this have something to do with your drop outs?
 
Hi All,

Thanks for the replies.

Thus far, I have contacted both Omnia support and Broadcast Tools several times, and while each were very nice. I ended up with a "must be the other vendors issue".

I agree completly that it is a timing issue. I have tried a number of solutions to fix it. These include, using a longer cable (saw once that standing waves can be created in short cables), using an ethernet cable as the patch, etc. The Omnia is set to sync to input and everything in the chain before it is set to 48kHz.

OKCRadioGuy... I will have an engineer put the signal into a scope and post a pic when I get it. I am interested to see what we will find.

As far as sync goes... I do not have a master clock as this transmitter site (lonley on those mountain tops) ;-) The broadcats tools box puts out a word click signal, but not sync. Does anyone know of a wordclock to AES sync converter? Although, I question why I would need it.
 
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