Cannot cancel the playing of a sound sample

[Davin Pearson <davin.pearson@gmail.com>]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

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list,
and to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

I want to use the play-sound feature to turn my computer into an alarm
clock, notifying me with different sound samples when different
appointments are due.  However I cannot play a long WAV file as there
is no way of cancelling the playing of a sound sample that is
currently playing.  Can anyone help me to work out how to cancel a
sound sample that is currently playing?  You would expect Control-g to
work but it doesn't.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
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In GNU Emacs 22.2.1 (i386-mingw-nt5.1.2600)
 of 2008-03-27 on RELEASE
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ENZ
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Dired by name

Minor modes in effect:
  shell-dirtrack-mode: t
  recentf-mode: t
  tabbar-mode: t
  dired-omit-mode: t
  display-time-mode: t
  show-paren-mode: t
  encoded-kbd-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: identity

Recent input:
<end> <f3> <C-end> <C-home> <f3> C-d <up> <up> <return>
<next> <next> <next> <next> <down> <end> <home> <end>
<next> <next> <f3> <help-echo> <help-echo> <help-echo>
<down-mouse-1> <mouse-1> M-x <up> <up> <up> <up> <down>
<down> <down> <down> <up> <up> <up> <up> <up> <up>
<up> <down> <return> <help-echo> <down-mouse-1> <mouse-1>
<down-mouse-1> <mouse-1> <down-mouse-1> <mouse-1> <down-mouse-1>
<mouse-1> M-x <up> <up> <down> <up> <up> <return> <help-echo>
<help-echo> 1 3 <return> C-d <S-backspace> <S-backspace>
<S-backspace> <S-backspace> <S-backspace> <S-backspace>
D l <tab> d i a <tab> <return> <end> <left> <left>
<left> <left> <delete> <delete> <end> <f12> <left>
<left> . 0 <end> <f12> <f2> <f3> <help-echo> <help-echo>
<help-echo> <down-mouse-1> <mouse-2> <down-mouse-1>
<mouse-1> <help-echo> <down-mouse-1> <mouse-2> <help-echo>
<down-mouse-1> <mouse-2> <help-echo> <down-mouse-1>
<mouse-2> <help-echo> <wheel-up> <double-wheel-up>
<triple-wheel-up> <triple-wheel-down> <triple-wheel-down>
<triple-wheel-down> <triple-wheel-up> <triple-wheel-up>
<triple-wheel-up> <triple-wheel-up> <wheel-up> <down-mouse-1>
<mouse-1> <double-down-mouse-1> <double-mouse-1> <wheel-up>
<double-wheel-up> <triple-wheel-up> <triple-wheel-up>
<down-mouse-1> <mouse-1> <help-echo> <help-echo> <help-echo>
C-d <backspace> <S-backspace> <S-backspace> <S-backspace>
<S-backspace> <S-backspace> <S-backspace> d l <tab>
l o <tab> . <tab> <return> <up> <up> <up> <end> <down>
<end> <return> 2 ` SPC C h a n g e d SPC v o l u m
e SPC o f SPC p l a ` SPC t <backspace> f r o m 1 SPC
<backspace> SPC <backspace> SPC <backspace> <backspace>
SPC 1 SPC - > SPC 1 . 0 <f2> <down> <down> <end> <f2>
<home> <end> <return> > SPC <S-delete> <S-delete> <S-delete>
<S-delete> <delete> <end> <f2> <S-down> <S-down> <f2>
<down-mouse-1> <mouse-1> <down-mouse-1> <mouse-1> <double-down-
mouse-1>
<double-mouse-1> <down-mouse-1> <mouse-1> <double-down-mouse-1>
<double-mouse-1> <down-mouse-1> <mouse-1> <f2> <f3>
<help-echo> <help-echo> <down-mouse-1> <mouse-1> <wheel-down>
<double-wheel-down> <triple-wheel-down> <triple-wheel-down>
<wheel-up> <double-wheel-up> <triple-wheel-up> <triple-wheel-up>
<help-echo> <help-echo> C-d <S-backspace> <S-backspace>
<S-backspace> <S-backspace> <S-backspace> <S-backspace>
d l <tab> d - a t <backspace> p p <tab> <return> <down>
<S-down> <S-left> <down> <end> <f12> <insert> <return>
<insert> <down> <return> <f3> <help-echo> <help-echo>
M-x r e p <tab> o r <tab> <return>

Recent messages:
nil
<<< Press Return to bury the buffer list >>> [2 times]
(No files need saving)
Omitting...
Omitted 4 lines.
(No files need saving)
Omitting...
Omitted 4 lines.
Making completion list...
let: Text is read-only