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Composite audio to aes/ebu

B

bossbill

Stupid question - I have existing analog composite audio to a transmitter site. I want to add HD and HD2. Is there available a composite to digital converter? I'll need both analog and digital at the transmitter for the HD main, plus the HD2.
 
Well there are tons of converters out there, but for your HD-1 you will also need to delay your analog or its going to be some where around 8 seconds off. The best case would be to get an audio processor that allows for a FM output separat form the HD. As far as HD2 you just need to either convert the analog at the site or studio(where ever you have put your importer) and choose your processing.

Best case of couse would be to have an AES STL to your site.
 
Okay, so it's looking like I'll want to move my processors to the transmitter site. They are both digital and composite out, so they can feed the HD transmitter and the analog transmitter.

I have a Moseley four-channel Starlink, so I can send Left and Right for HD1 and HD2 to the transmitter. I have a practically new airTools delay unit to delay the analog of the HD1.

HD3 is a talk format, I'll send that analog STL, into digital processor, output digital and analog...

That should do it... right?
 
Pretty close, geting the analog to sync up with the HD is a tricky deal to get right and i doubt the air tools is up to it as it can only do 10ths of seconds
What kind of audio processor are you running?
 
If you're thinking about adding a processor or perhaps replacing a processor, just a tip that an Omnia 9 FM+3HD processor would do processing for all 3 of your channels (with precise HD1 sync of course) and do RDS as well, in a single unit.

You would not be disappointed with the sound either ;)


Regards,
Goran Tomas
 
I agree, we did a demo on the 9 and it looks great!
And for the cost it dose more than its fair share of the work.
 
If I use the Omnia.9, I still will need to convert to analog for the FM translator feeds. If I use separate processors I will have both analog and digital outputs.
 
Bill Wolfenbarger said:
If I use the Omnia.9, I still will need to convert to analog for the FM translator feeds. If I use separate processors I will have both analog and digital outputs.
Click to expand...

I'm not sure I understand entirely... Omnia 9 has analog outputs (configurable to what you want to send to those outputs) and 3x AES/EBU outputs, plus 2x composite outputs. So you can have your FM on two composite outputs as well as L/R only on analog outputs if you need that, and have HD1, HD2 and HD3 all on AES/EBU outputs.


Regards,
Goran Tomas
 
The site will have an analog FM transmitter, 2 analog FM translators, and the HD transmitter. I will need composite audio for all three feeds, plus the AES/EBU for each of them.
 
Bill Wolfenbarger said:
The site will have an analog FM transmitter, 2 analog FM translators, and the HD transmitter. I will need composite audio for all three feeds, plus the AES/EBU for each of them.
Click to expand...

What I don't understand is what are these translators broadcasting? Not your FM station, I assume (since you have the main transmitter at the same location), but some other channel? Are they receiving the signal off-air and just re-broadcasting?


Regards,
Goran Tomas
 
They will be broadcasting the same programs that are on HD2 and HD3.
 
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