Sound from both Speakers and HDMI

I found this post to have Sound from both Speakers and HDMI.  It used to work for me.  However, it has stopped working.  has anyone ever tried this?  or have another solution?
Who is Participating?
David Johnson, CD, MVPConnect With a Mentor OwnerCommented:
follow the instructions AGAIN
    Open Sound panel
    Select Speakers as the default playback device
    Go to the "Recording" tab
    Right click and enable "Show Disabled Devices"
    A recording device called "Wave Out Mix", "Mono Mix" or "Stereo Mix" (this was my case) should appear
    Right click on the new device and click "Enable"
    Right click on the new device and click "Set as Default Device"
    Double click on the new device to open the Properties window
    Go to the "Listen" tab
    Click on the "Listen to this device" checkbox
    Select your HDMI device from the "Playback through this device" list
David Johnson, CD, MVPConnect With a Mentor OwnerCommented:
The way's presented are what we would have recommended here
MereteConnect With a Mentor Commented:
You can help us by letting us know the audio types your trying to play,  do you have Realtek HD audio?manager in your control panel?
 at this stage saying this worked in the linked why doesn't mine now?
I cant give you accurate suggestions.
You say it once worked what changed? Drivers? Audio types?

What is your computer model make to get the HD audio drivers?
Get high-definition sound and music from your computer
Understanding high definition audio is the starting place.
If you have a flat mp3 it wont play in high quality
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HLRosenbergerAuthor Commented:
I do have have Realtek HD audio manager in your control panel.  

I do not know if anything changed; that's part of my issue.  

HLRosenbergerAuthor Commented:
Thanks to all.  This just started working again one day.  I have not tested it yet, but I think the HDMI input on my TV has to be the active one when either booting the computer.
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