MRW Lights
Well-Known Member
Coming here with this one to see if anyone can come up with what we haven't... and for anyone not on various other Dante forums
We operate a broadcast facility as part of a large academic campus and we have several locations tied together to a central control center. One venue that operates Dante is fed via fiber to our central control, converted to madi and lastly madi coax to madi fiber for an SSL network for capture and broadcast. Both locations are synced with a GPS word clock. Somewhere, somehow, we are experiencing a drift that hits a limit and causes audio to drop for about 15 seconds and then recover. It happens randomly, usually back to back within a couple of minutes. Typically in a 2 hour show IF it happens, it happens twice and then not again until the next time.
signal chain
Yamaha/Dante network + 2 hops between locations, Focusrite Rednet D64R Dante>Madi, SSL Madi coax fiber converter, SSL Audio Router. The yamaha remote network gets word clock, the focusrite gets word clock, the router gets word clock. All of them scope within spec and we're working on a way to measure drift, but there really "shouldn't" be any. No audible artifacts in the audio like clock clicks or pops... can't for the life of me figure out why we sometimes, randomly, lose audio for about 15 seconds and then it comes back. Even weirder that when it happens it almost immediately happens again within 2-3 minutes and then could happen the same day or not again for months.... at least that we experience while actively monitoring. No errors show up in the system, latency on the dante side is fide, madi side works fine with 2 other remote locations with the same signal path...
Who has a better guess than me?
We operate a broadcast facility as part of a large academic campus and we have several locations tied together to a central control center. One venue that operates Dante is fed via fiber to our central control, converted to madi and lastly madi coax to madi fiber for an SSL network for capture and broadcast. Both locations are synced with a GPS word clock. Somewhere, somehow, we are experiencing a drift that hits a limit and causes audio to drop for about 15 seconds and then recover. It happens randomly, usually back to back within a couple of minutes. Typically in a 2 hour show IF it happens, it happens twice and then not again until the next time.
signal chain
Yamaha/Dante network + 2 hops between locations, Focusrite Rednet D64R Dante>Madi, SSL Madi coax fiber converter, SSL Audio Router. The yamaha remote network gets word clock, the focusrite gets word clock, the router gets word clock. All of them scope within spec and we're working on a way to measure drift, but there really "shouldn't" be any. No audible artifacts in the audio like clock clicks or pops... can't for the life of me figure out why we sometimes, randomly, lose audio for about 15 seconds and then it comes back. Even weirder that when it happens it almost immediately happens again within 2-3 minutes and then could happen the same day or not again for months.... at least that we experience while actively monitoring. No errors show up in the system, latency on the dante side is fide, madi side works fine with 2 other remote locations with the same signal path...
Who has a better guess than me?