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Beep.pm

by giulienk (Curate)
on Feb 11, 2003 at 18:50 UTC ( #234490=perlmeditation: print w/ replies, xml ) Need Help??

I ask for some feedback on Beep.pm, a new module i wrote. This is meant to use the computer beeper in some fancier ways.
NB: this module works only on Linux now and requires an external program! (beep)
#functional simple way use Beep; beep($freq, $milliseconds); #OO more musical way use Beep; my $beeper = Beep->new(); #lilypond subset syntax accepted my $music = "g f bes c'8 f d4 c8 f d4 bes, c' g, f2"; # Pictures at an Exhibition by Modest Mussorgsky $beeper->play( $music );
Download the whole thing from my CPAN directory.
Look at http://lilypond.org/ for more info about Lilypond format.

Some questions:

  • Is the namespace fine?
  • Is anybody willing to write an XS backend? (maybe even simply porting the beep program inside an XS module)
  • Any other suggestion is gladly accepted

Update: looking at the posts below i decided the namespace should be Audio::Beep (thanks everybody for the suggestions).
The Prima effort is pretty cool. Looking at the code i think we could take the Win32 beep code directly (i wrote "we" cause i think i will need some help in this). For the Linux backend i would stick to a "beep" (the program) implementation as the one found in Prima requires X.
About the problem with Makefile.PL requiring Perl 5.8: i'm sorry, i don't think we require 5.8. It's just that h2xs produced the Makefile.PL with that header and I didn't realize it was bad. I will update it in next version.

Update2: updated the link to point to my CPAN directory. The new version in Audio::Beep namespace also feature a PurePerl backend (doesn't require the beep executable for root users).


$|=$_="1g2i1u1l2i4e2n0k",map{print"\7",chop;select$,,$,,$,,$_/7}m{..}g

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Re: Beep.pm
by tachyon (Chancellor) on Feb 11, 2003 at 19:38 UTC

    Very cute. A better namespace might be Acme::Beep as Acme:: is a namespace filled with fun but not necessarily vital bits and bobs. It is hard to justify Beep:: as a new top level namespace given that there are not likely to be that many related 'submodules' (except for Beep::beep of course). Audio::Beep is another option

    cheers

    tachyon

    s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

Re: Beep.pm
by PodMaster (Abbot) on Feb 12, 2003 at 00:35 UTC
    You might wanna check out Prima (http://prima.eu.org/), in particular, the sound function in Prima::Utils.

    Here is pitch.pl from the samples

    # # Copyright (c) 1997-2002 The Protein Laboratory, University of Copen +hagen # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyrigh +t # notice, this list of conditions and the following disclaimer in +the # documentation and/or other materials provided with the distribut +ion. # # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' +AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, T +HE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LI +ABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQ +UENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE G +OODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTIO +N) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN A +NY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + OF # SUCH DAMAGE. # # $Id: pitch.pl,v 1.3 2002/05/14 13:22:26 dk Exp $ use Prima; use Prima::Utils; =pod =item NAME A sound example =item FEATURES Tests the implementation of apc_beep_tone() function. =cut my %octave = ( 'C' => 523, 'B' => 493, 'A#' => 466, 'A' => 440, 'G#' => 415, 'G' => 391, 'F#' => 369, 'F' => 349, 'E' => 329, 'D#' => 311, 'D' => 293, 'C#' => 277, ); $_ = 'E2D#EF2E2 G#2A4'; #$_ = 'AEAEAG#2 2EG#EG#A2 2EAEAG#2 2EG#EG#A2 AB2 BC2 C2BAG#A2 AB2 BC2 +C2BAG#A3'; for ( m/\G([A-G\s][\#\d]*)/g) { my $d = (s/(\d+)$//) ? $1 : 1; $octave{$_} ? Prima::Utils::sound( $octave{$_}, 100 * $d) : select(undef,undef,undef,0.1 * $d); }


    MJD says you can't just make shit up and expect the computer to know what you mean, retardo!
    ** The Third rule of perl club is a statement of fact: pod is sexy.

Re: Beep.pm
by grantm (Parson) on Feb 11, 2003 at 19:58 UTC
    Is the namespace fine?

    How about Audio::Beep?

    Update And does the module really require Perl 5.8? The first line in Makefile.PL says it does so it won't install on my 5.6.1 system.

Re: Beep.pm
by valdez (Monsignor) on Feb 11, 2003 at 19:58 UTC

    Ciao giulienk! What about Audio::Beep?

    Ciao, Valerio

Re: Beep.pm
by belg4mit (Prior) on Feb 11, 2003 at 20:42 UTC
    I would think Audio::Speaker or something to that effect (InternalSpeaker?) might be better, since you are clearly doing more than a monotone beep. Audio::Buzz? It's also probably non-optimal to assume beep is in your path (this is a strong reason to switch to XS). Alternatively you could use an environment variable to specify the path, or a parameter to pass to use, falling back on a hardcoded path of the default beep install location.

    --
    I'm not belgian but I play one on TV.

Re: Beep.pm
by toma (Vicar) on Feb 12, 2003 at 05:59 UTC
    I think this is a really useful and fun module!

    I suggest Audio::Monophone, since the module is a simple monophonic perl musical instrument, which plays a sequence of single tones. If it played chords, it would be Audio::Polyphone.

    As a module author, you will get many requests for enhancements, especially since you have written such a charming module. I think you will receive suggestions about how to make your module work on other platforms.

    I would like to use your module in a client/server environment. I want programs on several different computers to connect to a computer on my desk and play a tune.

    For example, I would like to sound the 'red alert' when the warp core starts to overheat :-).

    It should work perfectly the first time! - toma

Re: Beep.pm
by samtregar (Abbot) on Feb 11, 2003 at 22:26 UTC
    Please consider finding a new name. Sooner or later Perl will definitely need a BEEP.pm to support the BEEP network protocol (http://www.oreilly.com/catalog/beep/). Sure, it could be Net::BEEP, but I think it would be needlessly confusing to have a Beep.pm that doesn't have anything to do with BEEP.

    -sam

Re: Beep.pm
by zentara (Archbishop) on Feb 12, 2003 at 23:28 UTC
    I like this. It gives me an easy way to audibly signal different errors. I see just 1 small glitch. On my suse linux system , and probably many other linux systems, beep is a predefined shell function. I got around it by changing the name of the c program to beepme, but it's something to consider. Maybe in your beep.pm where you take the backtick on beep, you could specify the full path, /usr/bin/beep ?
Re: Beep.pm
by t'mo (Pilgrim) on Feb 12, 2003 at 17:47 UTC
      I didn't come up with any particular dialect or notation. I just took one standard i thought as cool, Lilypond. If you look close is also on the page you linked to. I wrote a parser just for a subset of that notation, adding the rpm "note".

      Of course other parsers could be wrote.


      $|=$_="1g2i1u1l2i4e2n0k",map{print"\7",chop;select$,,$,,$,,$_/7}m{..}g

        My bad; I should have read your comments more carefully (not just the code sample). :-) (Lillypond is one of the music notations I had heard about and looked at a little, but found abc easier to work with.)

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