28.2.14  Listening to a digital sound

The playsnd command plays digitized sound data.

• playsnd takes one mandatory argument and up to three optional arguments:
  • A, an audio clip.
  • Optionally, offset, len, a sequence of two integers, or a..b, an interval of real numbers, determining the portion of the clip to be played (by default, the entire clip is played).
  • Optionally, r, a positive integer (by default, r=1).
• playsnd(A) plays the given (portion of) audio clip over the computer speakers and repeats it r times (setting r to a higher value loops the sound r times).
• The portion to be played is either the block of len samples starting at offset or the sound between a and b seconds.
• To stop the playback, press the STOP button.