Clickity is a tray-icon program to simulate mouse clicks and drags that are hard to perform because of limited hand use or limited pointing hardware. It runs on any X system with tray icons, as well as Microsoft Windows, and doesn't require an integrated desktop environment or accessiblity framework to be installed. Clickity can be activated by holding and then releasing the left mouse button or by moving the pointer and letting it dwell in position. Actions include single clicks, double clicks, and drags of the left, right, and middle buttons, as well as scroll wheel motion.
Libsonic is a free C library for speeding up or slowing down speech. However, it's optimized for speed-ups of over 2X, unlike previous algorithms for changing speech rate. Sonic enables clear playback of audio books at 3X speed, and some blind listeners are able to listen at 6X. Libsonic has also been integrated into several text-to-speech engines. It works well on all platforms, even Android phones without FPUs. Pitch control is also supported.