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Author Topic: Audio transport over fiber  (Read 5044 times)

Tim McCulloch

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Re: Audio transport over fiber
« Reply #20 on: July 23, 2019, 12:07:38 PM »

Ok, let's clear the air a little bit as this was not intended to devolve into what is or isn't considered a network, but looking for options of equipment that I may have overlooked. 

My request for "No Dante, AVB, QLan, HiQnet, or anything requiring a network switch in between" has nothing to do whether or not the signal can ride on CAT5/6 or copper.  It has to do with the fact that this needs to be the most simple, un-complex solution possible with the least amount of equipment involved.  Maybe I should have mentioned point to point is the preference here to clarify - mea culpa. 

I appreciate those that have contributed thus far.  The viable solutions seem to be MADI or Optocore based, or possibly Rocknet.  I think some of the broadcast frames discussed earlier in the thread are going to price themselves out of contention.  I have also seen some of the Artel FiberLink boxes, but they are primarily either analog audio or AES, not both, which would involve an A/D converter on the near end.  Not the end of the world, but the SSL and Directout are both "all in one" systems.

If anyone has any additional transport protocol/solution that has been missed, please feel free to share it here.

None of the suggested alternatives are simpler than a TCP/IP network with a the same number of nodes - especially the broadcast products.

What about this project requires capability for the brain-dead?
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Brian Bolly

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Re: Audio transport over fiber
« Reply #21 on: July 23, 2019, 02:29:05 PM »

None of the suggested alternatives are simpler than a TCP/IP network with a the same number of nodes - especially the broadcast products.

What about this project requires capability for the brain-dead?

Two-fold:  1. Fiber infrastructure and 2. Territorial departments.

Fiber is a given, that was covered.  But you want to involve a network switch?  This is no longer the AV department, now IT gets involved. Don't get me started on it not being connected to the internet or anyone else.  I've raised that flag.

Do the users have the knowledge and capability of dealing with the other systems?  Absolutely.  But they don't want someone else's fingers in their pie.  Not from administration, supply or "support".  So yes, it needs to be a "dumb" system.

I don't makes the rules.  I just help other people bend them.
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Mac Kerr

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Re: Audio transport over fiber
« Reply #22 on: July 23, 2019, 02:48:53 PM »

Two-fold:  1. Fiber infrastructure and 2. Territorial departments.

Fiber is a given, that was covered.  But you want to involve a network switch?  This is no longer the AV department, now IT gets involved. Don't get me started on it not being connected to the internet or anyone else.  I've raised that flag.

Do the users have the knowledge and capability of dealing with the other systems?  Absolutely.  But they don't want someone else's fingers in their pie.  Not from administration, supply or "support".  So yes, it needs to be a "dumb" system.

I don't makes the rules.  I just help other people bend them.

If you only have 2 endpoints why do you think a network device needs a switch? Dante devices can be used without a switch for multiple devices in daisy chain mode (the same amount of redundancy you would get with any other system) or with only 2 devices also in redundant mode by using 2 fibers. You will need media converters to change fiber to CAT5 without a switch.

Mac
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Andrew Broughton

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Re: Audio transport over fiber
« Reply #23 on: July 23, 2019, 09:17:45 PM »

Two-fold:  1. Fiber infrastructure and 2. Territorial departments.

Fiber is a given, that was covered.  But you want to involve a network switch?  This is no longer the AV department, now IT gets involved. Don't get me started on it not being connected to the internet or anyone else.  I've raised that flag.

Do the users have the knowledge and capability of dealing with the other systems?  Absolutely.  But they don't want someone else's fingers in their pie.  Not from administration, supply or "support".  So yes, it needs to be a "dumb" system.

I don't makes the rules.  I just help other people bend them.
Just buy a switch that doesn't look like a switch.

Don't tell them what an EtherCon is, and there's no way they're going to think this is any more a switch than a Yamaha RIO is. (even though all Dante equipment has internal switches...)
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David Buehler

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Re: Audio transport over fiber
« Reply #24 on: July 24, 2019, 01:29:26 AM »

you could go a video embed/de-embed route route to achieve this, its a pretty rock solid method used in the broadcast world and I've done this trick many times in my video days.

Trisync/Black Generator or some other video source ->2-4 SDI Audio Embedder (4ch analog or 8 ch AES , 24 bit/48khz only you daisychain on different channel blocks) onto HDSDI/SDI video stream - > HDSDI/SDI to Fiber media converter ->Fiber  - >fiber to HDSDI/SDI media converter -> SDI Audio De-Embedder. you get upto 16 chs of Audio on SDI/HDSDI
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Scott Holtzman

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Re: Audio transport over fiber
« Reply #25 on: July 24, 2019, 01:10:09 PM »

you could go a video embed/de-embed route route to achieve this, its a pretty rock solid method used in the broadcast world and I've done this trick many times in my video days.

Trisync/Black Generator or some other video source ->2-4 SDI Audio Embedder (4ch analog or 8 ch AES , 24 bit/48khz only you daisychain on different channel blocks) onto HDSDI/SDI video stream - > HDSDI/SDI to Fiber media converter ->Fiber  - >fiber to HDSDI/SDI media converter -> SDI Audio De-Embedder. you get upto 16 chs of Audio on SDI/HDSDI

I had forgotten about this option.  I have used a simple Blackmagic switcher and SDI box to do just this before.  The coax can be easily converted to fiber. 

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Scott AKA "Skyking" Holtzman

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ProSoundWeb Community

Re: Audio transport over fiber
« Reply #25 on: July 24, 2019, 01:10:09 PM »


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