Joined Sep 2003
Mortal
Forum Thread
5.1 HDMI audio from HD 6450?
October 22, 2015 at
03:39 PM
I have a cheap AMD Radeon HD 6450 connected via HDMI to my TV (which passes audio to my receiver).
The spec page for the card lists multichannel 7.1 audio, but when I check my audio settings in Windows, I only see "2 speaker stereo configuration" available under the HDMI HD audio.
http://www.amd.com/en-us/products.../6000/6450
INTEGRATED HD AUDIO CONTROLLER
Output protected high bit rate 7.1 channel surround sound over HDMI or DisplayPort with no additional cables required
Am I doing something wrong? Could I be getting 5.1 even though windows says stereo only? I've updated to the latest drivers for Win 7 Home (a couple months old), and even the Beta (a couple weeks old). CCC doesn't seem to have any audio controls, it appears to be only through the Windows interface.
The spec page for the card lists multichannel 7.1 audio, but when I check my audio settings in Windows, I only see "2 speaker stereo configuration" available under the HDMI HD audio.
http://www.amd.com/en-us/products.../6000/6450
INTEGRATED HD AUDIO CONTROLLER
Output protected high bit rate 7.1 channel surround sound over HDMI or DisplayPort with no additional cables required
Am I doing something wrong? Could I be getting 5.1 even though windows says stereo only? I've updated to the latest drivers for Win 7 Home (a couple months old), and even the Beta (a couple weeks old). CCC doesn't seem to have any audio controls, it appears to be only through the Windows interface.
26 Comments
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This is what I was expecting to see, not just stereo.
http://imgur.com/wS1xD5E
and i tried listening to a 5.1 audio file, it doesn't seem to be doing 5.1.
Make sure your TV actually supports sending 5.1 out. My older Samsung LCD doesn't.
On many maybe even most tv's the optical and coax digital audio outputs only output PCM stereo. You generally need a receiver that supports HDMI and possibly a tv that supports audio return channel. If your computer has a coax or optical audio out use that or upgrade your receiver.
On many maybe even most tv's the optical and coax digital audio outputs only output PCM stereo. You generally need a receiver that supports HDMI and possibly a tv that supports audio return channel. If your computer has a coax or optical audio out use that or upgrade your receiver.
since my only two inputs are HTPC and Blu-ray, maybe I can find a Blu-ray that let's me test if the TV is outputting 5.1 for it. I'm getting the Disney WOW today, maybe it will include an audio test.
The TV has ARC, but that does me no good without HDMI on my receiver right?
I'd still be confused why the TV output affects whether Windows shows "stereo" or "5.1".
Thanks for the helpful tips though. I'll keep investigating.
The TV has ARC, but that does me no good without HDMI on my receiver right?
I'd still be confused why the TV output affects whether Windows shows "stereo" or "5.1".
HDMI devices can detect what's connected. If you had a receiver with ARC connected, it would show as 5.1 or similar. On many TV's the only time they output 5.1 over optical/digital coax is when the internal tuner is in use. The TV is performing a conversion on the audio signal from the source (or it negotiates what audio format the source should provide, I don't remember which) before it outputs stereo over the digital output
If you want surround, use a digital audio output directly from the computer or upgrade your receiver.
The spec page for the card lists multichannel 7.1 audio, but when I check my audio settings in Windows, I only see "2 speaker stereo configuration" available under the HDMI HD audio.
http://www.amd.com/en-us/products.../6000/6450
INTEGRATED HD AUDIO CONTROLLER
Output protected high bit rate 7.1 channel surround sound over HDMI or DisplayPort with no additional cables required
Am I doing something wrong? Could I be getting 5.1 even though windows says stereo only? I've updated to the latest drivers for Win 7 Home (a couple months old), and even the Beta (a couple weeks old). CCC doesn't seem to have any audio controls, it appears to be only through the Windows interface.
This is what I was expecting to see, not just stereo.
http://imgur.com/wS1xD5E
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TV: the 65" 4k RCA that was posted on SD recently. very little information online. only coax out, not optical.
Video card: AMD Radeon HD 6450 from SD
PC: Lenovo M57 from SD
Mobo: ?
Receiver: Onkyo HT-R530 from SD (part of the HT-S780 theater package with speakers, etc)
I'll try running audio out from PC to receiver just to see if it does anything different.
Appears to be made by On Corporation.
Doesn't say if it can output 5.1. There is a setting in the menus for digital audio out, options are: off, pcm, and raw. Try switching it to raw.
i'll explore more tomorrow morning, but my PC has only 3.5 mm stereo out, so that's my only option for direct to receiver, which is why i was hoping for HDMI audio. i'll try blu-ray tomorrow and see if the TV narrows it to 2.0.
when you listen to this 5.1 WMA, does every sound come from just one speaker at a time? that's my test.
http://www.lynnemusic.
The S/PDIF spec only supports 2 channels of un-compressed PCM audio or up to 7.1 in a compressed format like DTS or AC-3