Date: Fri, 12 Aug 2011 16:02:24 -0700 From: Gary Kline <kline@thought.org> To: Polytropon <freebsd@edvax.de> Cc: freebsd-questions@freebsd.org Subject: Re: library with click built-in? Message-ID: <20110812230224.GA9253@thought.org> In-Reply-To: <20110812213921.6cfdfa89.freebsd@edvax.de> References: <20110812192745.GA15543@thought.org> <20110812213921.6cfdfa89.freebsd@edvax.de>
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On Fri, Aug 12, 2011 at 09:39:21PM +0200, Polytropon wrote:
> Date: Fri, 12 Aug 2011 21:39:21 +0200
> From: Polytropon <freebsd@edvax.de>
> Subject: Re: library with click built-in?
> To: Gary Kline <kline@thought.org>
> Cc: freebsd-questions@freebsd.org
> X-Mailer: Sylpheed version 1.0.6 (GTK+ 1.2.10; amd64-portbld-freebsd8.2)
>
> On Fri, 12 Aug 2011 12:27:48 -0700, Gary Kline wrote:
> > I only use my FreeBSD computer as a server; it isn't even hooked
> > up to my speakers, so there is no way of testing anything i write
> > that involves sound. So.... does anybody know if any other toolkit
> > outputs audio?
>
> There are two means:
>
> The first one is the echoing of the ^G (BEL) character, 0x07
> which is handled by the text mode console or terminal emulators
> like xterm. In X, the sound that will be produced can be
> controlled with a xset setting.
>
> xset [-b] [b {on|off}] [b [volume [pitch [duration]]]]
>
> See "man xset" for details.
>
>
> The other one is the system speaker. If you have "device speaker"
> in your kernel, you can access /dev/speaker (if the permissions
> are set properly, see /etc/devfs.conf for an example. Using
> the "note language" known from several BASIC dialects for
> microcomputers, you can easily create sounds for that. A list
> of the "note language" is in "man 4 speaker".
>
> Here's a small example:
>
> #!/bin/sh
> read -p "CW ===> " TEXT
> echo ${TEXT} | morse | awk '{
> if(length($0) == 0)
> printf("P4\n");
> else {
> gsub(" dit", "P32L32E", $0);
> gsub(" di", "P32L32E", $0);
> gsub(" dah", "P32L8E", $0);
> printf("%sP16\n", $0);
> }
> }' | dd bs=256 of=/dev/speaker > /dev/null 2>&1
>
> NB: The timing is slightly out of proper relation. :-)
>
>
>
thanks. i have _never_ heard the BEL inmy version of
ubuntu. my server is a 2-proc dell, too cheap to
have a real spkr; it does beep [bbarely] thanks to some kind
of piezo gimmick. but no speaker connections.
i'll check around on my homebrew desktop...
>
> --
> Polytropon
> Magdeburg, Germany
> Happy FreeBSD user since 4.0
> Andra moi ennepe, Mousa, ...
>
--
Gary Kline kline@thought.org http://www.thought.org Public Service Unix
Journey Toward the Dawn, E-Book: http://www.thought.org
The 8.51a release of Jottings: http://jottings.thought.org
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