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From: Dan Espen <despen@verizon.net>
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Subject: Re: Emacs audio problem
Date: Fri, 01 Feb 2013 12:08:21 -0500
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Jason Rumney <jasonrumney@gmail.com> writes:

> On Friday, 1 February 2013 02:32:05 UTC+8, Dan Espen  wrote:
>> 
>> (setq ring-bell-function (lambda ()
>> 
>>  (play-sound-file "/home/me/audio/tap2.au")))
>> 
>> This works, but has an undesirable side effect.
>> 
>> It looks like keystrokes are ignored until after the sound plays.
>> 
>> Anyone have a suggestion?
>
> Use start-process to have an external program play the sound.

That's an idea.

I tried to follow Emacs code to see if it does something different
for :data vs. :file for the volume issue,
but so far the logic remains hidden from me.
I don't give up easy, so I'll try again.

I'll report back about start-process when I get a chance to try it.

-- 
Dan Espen