When was the last time Apple changed the set of sounds for its desktop operating system, somebody remembers... Quite a long time, to put it mildly. So long ago that this stubby "bzdyki", "FER" and "puff" can a hundred times to get bored. However, this is not a problem as to expand the set of standard sounds OS X can be virtually in no time... Well, three to be exact.
Come literally on the list:
1. Select the appropriate short sound file. The easiest way to find and download any cute "zvuchok" site Freesound.org - eg, Now this "call". Ask him a new name, for example, sonorous echo.
2. Convert the file in AIFF format. You can use free of charge audioconverter XLD. Ready AIFF-file transfer to a folder ~ / Library / Sounds.
3. keys option+F10 Open the System Settings module Sound (Sound). tab Sound Effects (Sound Effects), The list of available sounds by type Built (Built-in)You'll see a new "own" the item sonorous echo. Select it - and you will hear a sound at once.
Now, this effect is used in OS X as standard system signal that indicates inability to perform some action. Of course, you can add several files after converting them to AIFF - otherwise OS X simply ignore them.