Re: `play-sound-file', no mp3 support, sets global volume w/o reset

[Emanuel Berg]

> But play-sound-file has another problem, namely, if you do
> e.g.
>
>   (play-sound-file (file-name-concat bad-dir "data" "up.au") 0.4)
>
> it sets the global volume to 40% and worse, after it is
> done, it isn't reset.

Did anyone check this out?

If unsolved, in practice it means one cannot use it.
My Russian eurodance plays loud and clear at 30-40%.
Just imagine I execute some code that plays a sound at 100%
and then don't reset. The whole block would be dancing.

So while most people would probably just never use a program
again if they know they have to reset their settings
afterwards, it actually could be even dangerous.

Also, another bad thing is that the command monopolizes
execution. I know Elisp is single-threaded and the idle timer
and C threads don't change that, but what about
a child process?

Would that work?

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