The professionals and old hands will no doubt both know of this
and not require it, but it seems like a good self-teaching aid.

Found via

Click an IPA symbol to hear it spoken.

Kinda useful, in a pinch, though the example voice sounds more to
me like voiced/supervoiced pairs rather than unvoiced/voiced!

You can download the program itself from:

Oh, and TECH: I can't get navigator to pass the files directly to
RealPlayer, it insists on Virus Scanning them (huh??) and asking
me where to save them.  I've looked in
Edit\Preferences\Applications and (altho I'm a novice) the only
entry I see is to launch RealPlayer.  Any clues, anyone?  The Virus
checker in question is Norton 2000 (not my choice)