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Livestream with an Optimod 8100

E

erwin33

I'm searching for a radiostation who use an Optimod 8100 on there stream. I wonder what the sound is from this old vintage processor. Can someone please post here some links of stations who use one? Thanks.
 
I don't think you'll find many folks doing that. It's an old box and an FM broadcast processor is not the best or cheapest way to process for lossy compression audiocoding unless you just happened to have one sitting around.

Either you process heavily to precondition the audio for the codec or you just do some basic gentle limiting and let it go. The more dense the material, the crappier it sounds through streaming codecs. Just listen to when XM plays some dense tracks through its AACPlus encoders. Total garbage! XM is using Omnia3nets, if I recall. It's not the processor's fault in the case of XM. It's because they dynamically lower the bitrates and what sounded pretty good processed at a higher bitrate falls to pieces at a lower one.

This is our stream going through an OmniaTurbo and supersecretsauce outboard chain, then through the XMTR and back down into a Carver FM Tuner and then into the encoder: http://68.16.194.127:8090

It's a 48kpbs AAC stream in stereo.
 
I mean that I'm not searching for a station what have a direct feed from an Optimod 8100 but feed there stream from the FM output.
 
DudeFan said:
Either you process heavily to precondition the audio for the codec or you just do some basic gentle limiting and let it go. The more dense the material, the crappier it sounds through streaming codecs. Just listen to when XM plays some dense tracks through its AACPlus encoders. Total garbage! XM is using Omnia3nets, if I recall. It's not the processor's fault in the case of XM. It's because they dynamically lower the bitrates and what sounded pretty good processed at a higher bitrate falls to pieces at a lower one.
Click to expand...

If you're not happy with the sound of XM, please don't blame Omnia, as they made a choice to use another box. I believe they are using the Neural gear. Yes, we sold them a boatload of boxes, and in A/B comparison's Omnia kills the Neural gear, but not sure why they decided as they did.

Also, using older FM processors is not a good idea as the HF boost from the preemphasis network, along with hard clipping, will cause unwanted artifacts and distortion. BTW: This hold true for our stuff too. If you are streaming, you should use a dedicated device for that medium.

-Frank Foti
 
I agree with Frank. You should use dedicated processing for web streaming. FM and digital channels are very different and have different requirements. Techniques used for FM processing are not only unsuitable for digital, but actually counterproductive.


Regards,
Goran Tomas
 
We goes a little bit off topic now...Yes ok, streaming with special webcasting processing is better but I'm searching for stations who use an off the air feed from there FM transmitter so I can hear how an Optimod 8100 sounds.
 
DudeFan said:
This is our stream going through an OmniaTurbo and supersecretsauce outboard chain, then through the XMTR and back down into a Carver FM Tuner and then into the encoder: http://68.16.194.127:8090

It's a 48kpbs AAC stream in stereo.
Click to expand...

Wouldn't it be better to at least use Omnia's outputs to directly feed an encoder, rather than going through the air and tuner thus possibly degrading your audio (with reception noise and tuner induced distortions)?

Here's how we do it: http://radiostudent.redirectme.net

All streams on this page are processed for digital, some with Orban PC-1100 some with HD path of Omnia-6EX.


Regards,
Goran Tomas
 
erwin33 said:
We goes a little bit off topic now...Yes ok, streaming with special webcasting processing is better but I'm searching for stations who use an off the air feed from there FM transmitter so I can hear how an Optimod 8100 sounds.
Click to expand...

Here's another radio station from Croatia. This one is using off-air feed from Orban 8100/XT2 for web streaming:
mms://media.t-com.hr/101 (put it in WM player)
http://www.radio101.hr/streaming/101.ram (Real Audio)


Regards,
Goran Tomas
 
Thanks! Where did you find info about there soundprocessing?
When you find other stations who feed there livestream on the same way and with the same processing or an 8101b, it's also good.
 
erwin33 said:
Thanks! Where did you find info about there soundprocessing?
Click to expand...

I've set-up their processing ;)

When you find other stations who feed there livestream on the same way and with the same processing or an 8101b, it's also good.
Click to expand...

Unfortunately I don't know anyone else who still uses analog processing. Everybody else has gone digital.


Regards,
Goran Tomas
 
Yes, but there must be some stations, like Radio 101, using analog processing on there streams. I would like to now which stations. So if somebody here knows, let me know.
 
Slightly off-topic.

Frank: Is XM sending the Omnia3nets back? It's not in my budget to buy a new one, but a heavily discounted one would be fun to play with.

We love our 3t!
 
put me on the list for the o3 net,if there is one.XM screwed up that deal.
 
DudeFan said:
Slightly off-topic.

Frank: Is XM sending the Omnia3nets back? It's not in my budget to buy a new one, but a heavily discounted one would be fun to play with.

We love our 3t!
Click to expand...

Thanks for the comment!

Sorry, I have no idea what XM will be doing. The units they have can be upgraded to the Multicast S/W, and that destroys the Neural box.

-Frank Foti
 
Erwin33, to answer your specific question, try blues WMPR in Jackson, MS. http://www.wmpr901.com . During my last visit, the air chain was CD -> analog console -> barefoot 8100 -> Moseley composite STL -> 100KW tranny -> Rat-Shack tuner -> Windoze stream encoding PC under (last 2 items under the receptionist's desk, of course). Source material can wander around in terms of production values, but at least over-the-air it sounds great. Viva le analoge.
 
Doctor_Technical said:
Erwin33, to answer your specific question, try blues WMPR in Jackson, MS. http://www.wmpr901.com . During my last visit, the air chain was CD -> analog console -> barefoot 8100 -> Moseley composite STL -> 100KW tranny -> Rat-Shack tuner -> Windoze stream encoding PC under (last 2 items under the receptionist's desk, of course). Source material can wander around in terms of production values, but at least over-the-air it sounds great. Viva le analoge.
Click to expand...

Thanks for that link. If somebody have more '8100 feeded' livestreams, keep them posting.

B.t.w. the sound of that station WMPR sounds very 'flat' what I hear at the moment.
 
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