To play sound using Emacs, use the function
certain systems are supported; if you call
play-sound on a
system which cannot really do the job, it gives an error.
The sound must be stored as a file in RIFF-WAVE format (‘.wav’) or Sun Audio format (‘.au’).
This function plays a specified sound. The argument, sound, has
(sound properties...), where the properties
consist of alternating keywords (particular symbols recognized
specially) and values corresponding to them.
Here is a table of the keywords that are currently meaningful in sound, and their meanings:
This specifies the file containing the sound to play.
If the file name is not absolute, it is expanded against
This specifies the sound to play without need to refer to a file. The value, data, should be a string containing the same bytes as a sound file. We recommend using a unibyte string.
This specifies how loud to play the sound. It should be a number in the range of 0 to 1. The default is to use whatever volume has been specified before.
This specifies the system device on which to play the sound, as a string. The default device is system-dependent.
Before actually playing the sound,
calls the functions in the list
Each function is called with one argument, sound.
This function is an alternative interface to playing a sound file specifying an optional volume and device.
A list of functions to be called before playing a sound. Each function is called with one argument, a property list that describes the sound.