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No DTS from pc to tv (hdmi) and tv to amp (spdif) connection

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Hi
my pc is connected to the LG32 inch LE4500 tv with hdmi cabel and i'm getting sound from my tv.I have connected the tv to my onkyo ht s3400 amp with fiber optic cable (spdif) but i'm getting only mono sound from it no DTS.All realtek drivers are installed from the dh67cl intel motherboard cd .What am i doing wrong?I've spent hours trying to figure it out but it wont work i even reinstalled win7 .before re install of win7 i was getting dts from the amp but it stopped suddenly.I'm a newbie at all this so please help .
The options in the sound card realtek software are DIGITAL OUTPUT,DIGITAL OUTPUT (OPTICAL),SPEAKERS and MICROPHONE.Win7 shows my LG tv and when i right click on it and click TEST i can hear sound.When i do the same with SPEAKERS,REALTEK DIGITAL OUTPUT AND DIGITAL OUTPUT (OPTICAL) i see the green bars move up and down but cannot hear any sound .
What am i doing wrong .
Thank You.

More about : dts hdmi amp spdif connection

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jdwii said:
Same thing with my pioneer 521-k Just plug your HDMI to your receiver and then plug a different HDMI to your TV that is what i did.

thats the easiest way to do it but i dont use the amp all the time and i'll have to turn on my amp once everytime i want sound frm my tv and i dont want to have to do that.There has got to be a way to get dts frm my tv to the amp i just want to find it.

divyabhatia said:
thats the easiest way to do it but i dont use the amp all the time and i'll have to turn on my amp once everytime i want sound frm my tv and i dont want to have to do that.There has got to be a way to get dts frm my tv to the amp i just want to find it.



I'm telling you their is no other way to do it, If you're really concerned the only other option would be a HDMI switch
Like this one
http://sewelldirect.com/2x1-or-1x2-HDMI-Bi-Directional-...

I'm really into home theater as well as its my other hobby besides PC's so i'm no noob here the only possible way is to do what i said (about the HDMI to the receiver to the tv) and under settings enable control and ARC and try to see if their is sound on your TV(your tv has to support this feature) You are not going to find a solution under any type of driver/software.
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jdwii said:
I'm telling you their is no other way to do it, If you're really concerned the only other option would be a HDMI switch
Like this one
http://sewelldirect.com/2x1-or-1x2-HDMI-Bi-Directional-...

I'm really into home theater as well as its my other hobby besides PC's so i'm no noob here the only possible way is to do what i said (about the HDMI to the receiver to the tv) and under settings enable control and ARC and try to see if their is sound on your TV(your tv has to support this feature) You are not going to find a solution under any type of driver/software.

just installed power dvd 11 and used audio options to use only hdmi.DTS now works with power dvd .need to get it working with vlc.

jdwii said:
I have to admit i'm surprised my TV would not work that way.

whats your tv's model number?

this is what i did in power dvd 11 and even 12

right click on playing movie/video goto setting>audio>speaker enviornment :o nly HDMI.Output mode should be Non Decoded dolby digital/dts frm external device.
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