Solved Windows 7 mono audio setting - solution found

April 11, 2013 at 21:55:08
Specs: Windows 7

About two or three months ago my left speaker in the laptop died. It did not bother me because most games and music seemed to sound just fine with one speaker. Movies and such usually get routed through the headphone jack to the surround sound system. But today I wanted to listen to a podcast and there was no sound. Windows volume meter showed there was infact something playing but it was not coming out the right speaker. I tried playing something else and it played fine. So I figured that the pod cast must be playing only out the left channel. So started my quest, to set windows 7 up to play sound in mono. Going to playback devices and configure for the speaker only had a stereo setting. I have a realtek driver loaded and nowhere could I find a mono setting.
So I finally ended up at the realtek site and downloaded a generic vista/win7 driver.
It did not want to install because the driver was not signed. I uninstalled the old driver. I tried again to install the generic driver I had just downloaded without success. So finally I decided not to use the setup.exe and instead double clicked on alcupd.exe (the driver update program). Success. Only thing is that because I uninstalled the laptops sound driver, I no longer have any of the environment or equalizer settings. Not a big deal for me, If I need them I will just reinstall the laptop sound drivers. So I right click on the speaker icon in the taskbar and choose playback devices, then the properties for the headphone. I renamed headphone to Internal Speaker. Then under enhancements I chose Headphone virtualization. Success, now can hear both the left and right channels on the one good right speaker, with just slightly less volume.
I was able to hear my podcast just fine with the new settings.

So I guess "Headphone virtualization" equals Mono sound. Hey it works for me, maybe it will work for you.

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April 12, 2013 at 09:52:04
Thanks for the information - a novel solution.

I might have been tempted to just replace the speaker - there must be plenty of laptops being junked and it would have only been a matter of trying to find one of the nearest physical size you could fit somehow. I would have thought they all have much the same impedance.

Or you could go to a website such as this and get a pair for about 10 dollars:
You would have then had stereo too (although it probably doesn't matter too much on a laptop).

Always pop back and let us know the outcome - thanks

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April 12, 2013 at 15:39:08
✔ Best Answer
being unemployed $10 is quite a bit of money and this fujitsu laptop would require almost complete disassembly to replace the speaker. I have had this laptop disassembled many times cleaning the fan and upgrading the CPU. It is probably due for another cleaning soon. I will look at the speaker then. Does anyone know if there is a better quality speaker set for laptop replacement?

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