The freeware release Flight of the Amazon Queen, my second favorite free game currently supported for the 2D adventure game program ScummVM, has been updated to 1.1.
This version re-compresses the sound with the latest ScummVM tools so that any clicks at the beginning of speech should be fixed, as well as any problems with speech playing too slow. Although the slow speech problem has a work around in ScummVM 0.12.0, so you might not even notice that problem.
You can download the game for free from the ScummVM download page, and while you're at it pick up the latest version of ScummVM to play the game too. :)