system environment/libraries
- codec2 - Open source low bit rate speech codec designed for communications quality speech at around 2400 bit/s
- php-embedded - PHP library for embedding in applications
- php-enchant - Human Language and Character Encoding Support
- php-intl - Internationalization extension for PHP applications
- php-pspell - A module for PHP applications for using pspell interfaces
- php-recode - A module for PHP applications for using the recode library