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 Post subject: RDS over digital feed.
PostPosted: Tue Jun 23, 2015 10:49 pm 

Joined: Sat Jul 05, 2014 4:12 am
Posts: 75
Does anyone know how to send RDS over a s/pdif or aes (with ASIO) digital feed?)
We have a station that comes in digital off of HD to a translator and we're feeding the signal into stereo tool for processing (and analog RDS addition).

I'm wondering if its possible to use s/pdif or aes to feed digital from ST to EAS to BW Broadcast 300 TX V2 via digital AES then have the RDS transmit along with the audio.

Thank you in advance,
Chris


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PostPosted: Wed Jun 24, 2015 10:43 am 
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Joined: Tue Mar 17, 2009 2:56 pm
Posts: 4163
Sure. Since you already have capable soundcard that can output 192lHz out of spdif, all you need spdif to AES converter.
You can also make one - http://www.epanorama.net/documents/audio/spdif.html

I would double check it is it worth it with that exciter. Most of them just have digital input and again converts it to Analog.

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PostPosted: Wed Jun 24, 2015 3:42 pm 

Joined: Sat Jul 05, 2014 4:12 am
Posts: 75
My Big Concern is maintaining RDS over the digital stream. When I say EAS I mean my FCC EAS box. I'm s/pdif to it then AES from it to the transmitter. The s/pdif from the broadcast machine to the EAS box will require a conversion to AES. I'll have to pick that up. Thanks for the info. i'm looking more from the technical side to see if it will maintain the RDS output.


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PostPosted: Thu Jun 25, 2015 12:08 am 
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You should be able to send it but you need to check for both devices if they are able to use it. Many transmitters only accept left/right input via a digital connection, in that case using a digital connection will cause about 2 dB loss in loudness at the same peak level and loosing RDS, which is probably not what you want...


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PostPosted: Thu Jun 25, 2015 8:01 am 

Joined: Sat Jul 05, 2014 4:12 am
Posts: 75
I'll be testing this tonight. Hopefully I can maintain the RDS over digital but we shall see.


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