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Ultimate Geek
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Topic # 64577 18-Jul-2010 12:09
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is it optical?




foxy

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  Reply # 352931 18-Jul-2010 12:12
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optical or digital coax, both carry the same digital inputs, so over short runs are exactly the same :)





I have moved across the ditch.  Now residing in Melbourne as a VOIP/Video Technical Trainer/Engineer. 

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  Reply # 352935 18-Jul-2010 12:17
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also, a Cheapo digital optical cable off ascent.co.nz or acquire.co.nz will do the same job as a "monster" cable, just avoid any Monster gear completely(unless they offer it free with the receiver), it's complete overpriced rubbish




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  Reply # 353081 18-Jul-2010 19:52
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Are the cables rubbish? Or just pricey?
Or both?

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  Reply # 353101 18-Jul-2010 20:54
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Neither optical or coax have the bandwidth to cope with the HD audio formats (DTS- HD and Dolby TrueHD). The only way to carry these is by HDMI.

To do this you need a receiver that doesn't just do pass through for HDMI video but actuall accepts HDMI audio.

It doesn't have to decode so long as your player can output bitstream.

Alternatively your player can down-convert to output over coax or optical. You lose quality though.

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  Reply # 353278 19-Jul-2010 11:00
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Hope this isn't confusing, but it's a bit involved.
If you are after the HD Audio tracks on a bluray you NEED:

1) a Receiver that can decode the HD Audio tracks*.

* (or a Bluray Player that can decode the HD Audio tracks and pass this info to a receiver than can accept raw LPCM by hdmi)

* (or a Bluray Player that can decode the HD Audio tracks and pass this info to a receiver than can accept mutichannel analogue inputs)

2) an HDMI cable to pass the information along.

If you have an older receiver that cannot work with HD Audio/HDMI then you can only use the scaled down audio versions. In this case Optical/Dig Coax or straight analogue cables will all work.

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  Reply # 353385 19-Jul-2010 13:41
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Jaxson: Hope this isn't confusing, but it's a bit involved.
If you are after the HD Audio tracks on a bluray you NEED:

1) a Receiver that can decode the HD Audio tracks*.

* (or a Bluray Player that can decode the HD Audio tracks and pass this info to a receiver than can accept raw LPCM by hdmi)

* (or a Bluray Player that can decode the HD Audio tracks and pass this info to a receiver than can accept mutichannel analogue inputs)

2) an HDMI cable to pass the information along.

If you have an older receiver that cannot work with HD Audio/HDMI then you can only use the scaled down audio versions. In this case Optical/Dig Coax or straight analogue cables will all work.


Your last point is not quite correct. As you said if you bluray player can output via analogue and your receiver has multichannel 5.1 or 7.1 analogue inputs then it can receive the HD signal that way.







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  Reply # 353392 19-Jul-2010 13:52
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Yeah sorry, had to write that quickly this morning.
(Bring back the edit ability and I'll sort itWink)


To answer the OP, hdmi is the best way to hook sound to receiver from blu ray.
It can be done via analogue connection but this usually requires all speaker delays/distances/bass/treble settings etc to be setup within the player as most receivers do not massage the signals when input via multichannel analogue.  This is therefore not the best way to do this as you lose any receiver calibration data etc and have to recreate the wheel with lower quality tools.

Your options are:
a) Get the player to send the HD audio to the receiver to decode, in which case you have to use hdmi.
b) Get the player to decode the HD audio itself and simply pass the raw info to the receiver, either by hdmi as lpcm or as analogue channels via rca interconnect cables.

If none of the above work with your equipment, you will be limited to the lower quality audio.
Sorry if my post was confusing and hopefully it is now clearer.



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  Reply # 353548 19-Jul-2010 18:58
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so i need to send sound to reciver via hdmi for tru sound my blu ray player has only one hdmi outlet which is sent to the tv it has optical another one called Lan and the anologue cable i guess ? so i cant send hdmi to reciver even if i wanted to ?at present is is via optical and as i say it had a thud sound when people speak only on dts so is my reciver to old it works fine on dolby digital blu ray




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  Reply # 353571 19-Jul-2010 19:47
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First up.
What receiver do you have?
If you have a receiver with an HDMI repeater (HDMI ports that can send both audio & video) then you can simply plug an HDMI cable from the Bluray player to an HDMI 'in' port on the receiver.
Then, connect an HDMI cable from the HDMI 'out' to your monitor.

Simple.

However, if your receiver does not have HDMI repeaters, and instead has pass through switches, you'll need to utilise an optical cable from the BluRay to the receiver.
If the receiver only has one optical port... and it's already in use (maybe with a Sky set top box), then you'll need to use a Coax cable from the BluRay to the receiver.



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  Reply # 353587 19-Jul-2010 20:10
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its an older tecnics reciver and i use the optical cable there is no hdmi just played 2 blu rays that were not hired and there was no thud sound in dts




foxy

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  Reply # 353922 20-Jul-2010 14:21
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foxy38: so i need to send sound to reciver via hdmi for tru sound my blu ray player has only one hdmi outlet which is sent to the tv it has optical another one called Lan and the anologue cable i guess ? so i cant send hdmi to reciver even if i wanted to ?at present is is via optical and as i say it had a thud sound when people speak only on dts so is my reciver to old it works fine on dolby digital blu ray


Wow. Is your keyboard missing all of the punctuation symbols? That's barely understandable! 

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