Originally Posted by Slannder
Hello, I recently purchased my Denon x1200w. I hooked up a front Left, front Right, Center channel and my PC to the receiver which is hooked up to my Vizio 55" tv, Model number xvt553sv. The speakers I bought are the Energy 5.1 Take Classics. I have my back left and right speakers mounted but not wired yet. My question here is when I run audio tests on the right, left and center they work perfectly. I did the auto calibration through the set up wizard and i heard sound out of all 3 speakers. But when I play anything. Movies, Games, Tv shows the sound only comes out of the right and left Unless I press the options button on the Denon remote and set it to "All Zone Stereo" mode. If I do that I hear sound out of all 3 speakers. I set my PC to accept sound through center channel and I even went under the CEC settings on my Vizio tv and turn on "CEC Function On" and "System Audio Control" then searched for a device and it found my receiver, then I turned TV sound off under my vizio tv settings so it would accept the speakers for sound. Why wont the sound come through my center channel normally without having to turn on the "All Zone Stereo" fuction with the denon remote?
Most likely this is happening because your sound sources probably are providing a 5.1 signal but are putting sounds only in the front two speaker channels. If the media player software in your computer is using DirectSound, it'll always send as many channels as you've configured in the Sound menu, but when you play a stereo (two channel) soundfile, only the front two main speaker channels will be used. The other three will be silent. If that's what's happening, you need to consider using a media player which supports WASAPI instead.(*) Such media players bypass the Sound menu settings and send exactly the same number of audio channels to the receiver as are in the soundtrack that they're playing. Similarly, many cable TV channels botch their soundtracks in the same way: they embed a stereo signal in a 5.1 surround-sound carrier, providing silent center and surround channels.
One way to verify this is to press the Info button on the receiver's remote. The on-screen display will show you what kind of input audio it's seeing, which incoming channels are active, and which speakers are active. For the examples I mention above, it'll show it's getting a 5.1 channel input signal, not a stereo (2 channel) input signal.
To verify that this is what's happening, configure the HDMI entry in the Sound menu in your computer to output a stereo (2 channel) signal. Then it'll only send two audio channels all of the time. The receiver will see only two channels coming in, and you'll be able to select the receiver's "+Surround" option to upmix those two channels to use all three of your speakers
I'm using the 5.1 setting but only because if I use the stereo setting it doesn't show a center channel. If I use the 5.1 setting I can uncheck the surround speakers and keep the front left and right and center box checked but then the only way I hear sound from the center is setting "All Zone Stereo" on the Receiver. Same goes for using the PS4, if "All Zone Stereo" is set to off I do not hear sound from my center but if it's set to on I do. But it resets to Off every time I turn the receiver off.
* - For some example of free media players which use WASAPI, see the thread https://www.avsforum.com/forum/26-hom...-channels.html