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Is it possible to downmix stereo sound to while using the headphone output plug? Ideally it could be toggled on and off quickly. Downmixing the media files isn't really a good solution as I would need to store both versions for different occasions (sometimes using headphones and speakers with a broken or weak other channel). The speaker already does downmixing according to this (https://together.jolla.com/question/43149/downmix-to-mono/) so there probably is a way to do it with the plug, too.

I've tried the Pulseaudio commands described in this link: http://askubuntu.com/questions/17791/can-i-downmix-stereo-audio-to-mono Apparently, this changed nothing as I tried playing some stereo test video and the playback was still stereo. After that I have also tried to set the new sink as default and move a current stream in the new sink but that just resulted in silence. http://askubuntu.com/questions/71863/how-to-change-pulseaudio-sink-with-pacmd-set-default-sink-during-playback It looks like things are a bit different in Jolla even though they both are using Pulseaudio, so it probably needs a better understanding of Pulseaudio mechanics (or a completely different approach without Pulseaudio?).

Is it possible to downmix stereo sound to while using the headphone output plug? Ideally it could be toggled on and off quickly. Downmixing the media files isn't really a good solution as I would need to store both versions for different occasions (sometimes using headphones and speakers with a broken or weak other channel). Additionally, it wouldn't work for streaming media. The speaker already does downmixing according to this (https://together.jolla.com/question/43149/downmix-to-mono/) so there probably is a way to do it with the plug, too.

I've tried the Pulseaudio commands described in this link: http://askubuntu.com/questions/17791/can-i-downmix-stereo-audio-to-mono Apparently, this changed nothing as I tried playing some stereo test video and the playback was still stereo. After that I have also tried to set the new sink as default and move a current stream in the new sink but that just resulted in silence. http://askubuntu.com/questions/71863/how-to-change-pulseaudio-sink-with-pacmd-set-default-sink-during-playback It looks like things are a bit different in Jolla even though they both are using Pulseaudio, so it probably needs a better understanding of Pulseaudio mechanics (or a completely different approach without Pulseaudio?).

Is it possible to downmix stereo sound to while using the headphone output plug? Ideally it could be toggled on and off quickly. Downmixing the media files isn't really a good solution as I would need to store both versions for different occasions (sometimes using headphones and speakers with a broken or weak other channel). Additionally, it wouldn't work for with streaming media. The speaker already does downmixing according to this (https://together.jolla.com/question/43149/downmix-to-mono/) so there probably is a way to do it with the plug, too.

I've tried the Pulseaudio commands described in this link: http://askubuntu.com/questions/17791/can-i-downmix-stereo-audio-to-mono Apparently, this changed nothing as I tried playing some stereo test video and the playback was still stereo. After that I have also tried to set the new sink as default and move a current stream in the new sink but that just resulted in silence. http://askubuntu.com/questions/71863/how-to-change-pulseaudio-sink-with-pacmd-set-default-sink-during-playback It looks like things are a bit different in Jolla even though they both are using Pulseaudio, so it probably needs a better understanding of Pulseaudio mechanics (or a completely different approach without Pulseaudio?).