How to set system volume?

[ivanlitovski]

Since QAudioOutput does not provide any volume control (!?!?!?), I am trying to find a way to set system-wide volume. So far, no luck. Any help appreciated.

Thanks

[rahulvala]

Check this : http://doc.qt.nokia.com/qtmobility-1.2/multimedia.html

Can you do like this way : player->setVolume(50) // set 100 for maximum volume.

regards,
rahul

[ivanlitovski]

Check this : http://doc.qt.nokia.com/qtmobility-1.2/multimedia.html

Can you do like this way : player->setVolume(50) // set 100 for maximum volume.

Thanks Rahul, but this is not what I was asking.

First, I am not using QMediaPlayer, but QAudioOutput. Second, the question was how to set SYSTEM-WIDE volume.

Setting system volume anybody?

[rahulvala]

Read this bugreport : https://bugreports.qt.nokia.com//browse/QTBUG-10729

regards,
rahul

[ivanlitovski]

Read this bugreport : https://bugreports.qt.nokia.com//browse/QTBUG-10729

I did, and again this has nothing to do with what I asked. Are you a robot?

[mikkovtr]

I think you can (maybe) set system wide volume directly via alsa, which is the low level sound layer. I really don't know if using alsa directly is supported or recommended in any way, but there are alsa docs from Nokia available here http://harmattan-dev.nokia.com/docs/...ZWZlcmVuY2U%3D

I assume that you have N9/N950, so you can try to play with first 'alsamixer' to see how it affects volume. You can start alsamixer from terminal after going to kind-of-root via 'devel-sh'. It is apparently possible to set volume too high so be careful not break anything.

I don't know enough about sound subsystem to say if it is wise idea or not.

Edit: I think using alsa directly might be forbidden by security policy.

[kusumk]

http://harmattan-dev.nokia.com/docs/...diooutput.html

There is a setVolume method here. Hope this link above helps.

[savaj]

http://harmattan-dev.nokia.com/docs/...diooutput.html

There is a setVolume method here. Hope this link above helps.

That method can set the volume of the audio that you are play using AudioOutput only.

For original question "How to set system volume?" I really don't know how to do it.