sfinfo~

You can use the line~ object to supply a changing speed value to the right inlet of the sfplay~ object. The second outlet of the function object sends out a list message intended to describe the function to a line~ object.

This shows how to record into a sound file, and how to play back the contents of the file. The example also demonstrates how you can use a quick fade-in and fade-out to avoid clicks when doing realtime capture during a performance.