Wednesday 14 November 2018

windows xp - How do I force single (only) channel audio in youtube/flash videos to play in both (left/right) channels?


Occasionally, I find Youtube videos that have only one audio channel (only left or only right); example video (left channel only).


This is quite annoying, especially with headphones on, as I hear sound in one ear, and no sound in the other.


So, I want to be able to easily force dual mono (Left+Left or Right+Right) when I find that kind of video, and switch to normal stereo after I finish watching it.



  • I have my headphones plugged well / I don't create audio/video - I want it for real-time playback only,

  • In Windows audio config, setting balance 100% to Left / Right doesn't help (I have either still only left when moved to left, and no sound at all when moved to right), I've checked all the configurations in Control Panel > Sounds and Audio Devices > Audio > Sound Playback > Advanced like suggested in this post, in conjunction with moving balance left/right, and it doesn't seem to have any impact on actual sound I hear in headphones,

  • No need to mix L with R, I just want L+L or R+R,

  • I prefer software solutions to buying a stereo-to-mono adapter,

  • Free solutions please, no $$$ ones, neither trials etc.,


  • In Control Panel > Realtek HD Sound Effect Manager I can turn on various mumbo-jumbo effects like: Concert Hall / Hangar / Bathroom / whatever environment (and in fact it makes the sound appear in two ears, but well, it's ridiculous to do this;), but there is no Dual Mono option.




  • Finally, I know I can force L+L or R+R in VLC Player which supports Youtube (well, a little hack is needed, because Youtube internals change from time to time) but it is not very convenient to launch VLC just to play Youtube video - I want to keep it in the browser, I use Firefox generally (but well, if I don't find easier way, I will launch it in VLC).





Answer



I just accidentally found a lame and hacky but working way to solve the issue - plug the headphones halfway, instead of fully, to the port :)


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