Surround sound system Optical to RCA?

kittybooze

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May 29, 2015
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My conundrum is that I bought a second hand surround sound system that includes a receiver that only takes in RCA audio (The red and white cables)

Wheras, my tv does not output through any sort of rca. It has a digital out and a hdmi arc. I'm wondering if there's a cheap/plausible way to convert the audio to the rca in the receiver without losing audio quality and whatnot. Please let me know your opinions. I'd rather not have to drop a lot on a new receiver.

A lot of the converters I find online don't have a gurantee for supporting surround sound. As in, through the conversion it strips the audio down.
 

kittybooze

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May 29, 2015
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Sorry I forgot to specify that this is for a surround sound system, and a part of my problem is a lot of converters like this one seem to cut down the audio to just left and right speakers.
 

kittybooze

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May 29, 2015
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So bottom line, I would need 2 boxes to do all the converting and whatnot, there is no method that's easier unless I just grab another reciever.

Another option is the ARC hdmi on my tv but I doubt that's any easier.
 

kerberos_20

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Dec 24, 2011
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for hdmi that would be pretty much same
stereo for PCM, dolby/dts when u have encoder for it
receivers these days have it built in
pcm surround was long forgotten, its all digital now
 

bigpinkdragon286

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The OP needs a decoder, not an encoder, for the updated purpose, and he's not going to find a decent one for a low price.

https://www.amazon.com/SKSL-Digital-Converter-Support-Blue-Ray/dp/B019RF7ZVA/ref=pd_rhf_dp_s_all_spx_0_7?_encoding=UTF8&pd_rd_i=B019RF7ZVA&pd_rd_r=2WQS341YCRHD25XQBEQZ&pd_rd_w=Bz7Vr&pd_rd_wg=9XMs5&pf_rd_i=desktop-rhf&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=176593514375956671&pf_rd_r=2WQS341YCRHD25XQBEQZ&pf_rd_s=desktop-rhf&pf_rd_t=40701&psc=1&refRID=2WQS341YCRHD25XQBEQZ

Here is an HDMI audio extractor, and no, it does not support decoding, but your TV probably does, which would serve your purpose. This device takes a digital PCM signal and converts it to the respective analog outputs. If your TV can not be configured to decode audio streams into PCM audio, this is not the device for you.

The only other device I see that comes close to what you're asking for is what kerberos_20 linked to. Unfortunately it appears to be a piece of junk and there are multiple copies of the same unit floating around on Amazon for the same dirt cheap prices, just with different branding slapped on the top. Read the reviews and you'll see the decoder sometimes cuts out, injects pops and clicks, has a high noise floor, and loses sync when used for long periods of time.

Your best option is to track down a proper amplifier with an input that meets your needs and has the ability to decode the formats you are going to send to it.
 

kerberos_20

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right...decoder.. english isnt my main language
tv will just convert it to stereo which is not what u want
and IF your tv can convert it to surround pcm, u cant use optical, as optical cable cant handle it, hdmi cable would be your only option here
ull need to convert digital dolby/dts if your receiver cant do it
 

bigpinkdragon286

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Correct. PCM over multi-channel is only an option with HDMI, hence the device I linked to, and this is going to depend on the source of that HDMI audio, be it the OP's TV or media device he's sourcing the audio from.

At this point if you don't need HDMI, you can usually find amplifiers at second hand stores like Good Will that have TOSLINK or digital coaxial as an input and can at least decode DTS or Dolby. This may be a cheap way to get things going, until you can buy the unit you really want or need. Keep in mind however it's possible the digital out on the TV is only stereo, unless it's simply being used as a pass-through for the pre-encoded audio stream being fed to the TV. This would make the digital out all but useless for the intended purpose of transporting surround to an analog amplifier.
 
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