TVs & Home Theaters forum

General discussion

Coaxial digital to Optical digital coverter for Raw signal

by paulhmckee / January 12, 2013 1:26 AM PST

I have an Insignia TV model #NS-50L240A13 which has a Coaxial digital Output connection. I also have a Samsung 5.1CH Blu-Ray Home Entertainment System which is used as my audio receiver for my Insignia TV. The Samsung unit has an input jack for optical digital audio. I have tried using the Impact Coaxial to Optical Converter model #40018, however it could only process SPDIF PCM signals only and would not decode the SPDIF RAW signals thereby limiting audio output to two audio channels only. I am looking for advice on where I can obtain a working Coaxial digital to Optical digital converter that can process the RAW audio signals so that my Samsung receiver is able to decode the Dolby Pro Logic 5.1 audio signals.

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Converter #40018 does not process RAW
by paulhmckee / January 12, 2013 5:14 AM PST
In reply to: something like this

I appreciate your link, however, as indicated in my original post this Impact Converter Model @40018 will not process the RAW signal, only PCM. Is it possible that I need to change a setting in the Samsung audio receiver to receive the RAW signal?

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Receiver function
by sunwatcher / January 12, 2013 6:20 AM PST

Processing is not a function of the converter. The converter merely makes the coax compatible with the optical in/out.

You will need to check your Samsung system to see if it can process raw (bitstream) data. The one Samsung theater manual I looked at specifically excludes bitstream processing, but you should check the manual for your particular receiver.

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Receiver information
by paulhmckee / January 12, 2013 8:54 AM PST
In reply to: Receiver function

Thanks for this info. I know that my Samsung audio receiver does process Dolby 5.1 from the Blu-ray Disc player and also does so from Apple TV using the HDMI port. I just assumed that it would also decode the raw bitstream as well. I will have to consult this issue with Samsung tech support. In the meantime I have to prerecord all my tv shows that support Dolby 5.1 and convert to Apple TV format, but I would also like to be able to receive live TV Dolby 5.1.

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