Ecasound is a software package designed for multitrack audio processing. It can be used for simple tasks like audio playback, recording, and format conversions, as well as for multitrack effect processing, mixing, recording and signal recycling. It supports a wide range of audio inputs, outputs, and effect algorithms. Effects and audio objects can be combined in various ways, and their parameters can be controlled by operator objects like oscillators and MIDI-CCs. A versatile console-mode user interface is included in the package.
PyLETS_CGI is a simple Web-based accounting database intended for mutual credit systems, including LETSystems, time-dollar systems, community barter networks, and babysitting circles. It is suitable for low transaction volumes, where file locking is considered adequate to provide concurrent file access and the cost or continuous memory loading involved in using a relational database is considered a disadvantage. The administrator is able to add accounts and input transactions. Users are optionally able to make payments out of their own accounts into other accounts within the network, check their own and other users' account balances, and view their own trading statements.
CAKE (Key Addressed Crypto Encapsulation) is a bunch of Python and C++ for implementing the CAKE protocol. The CAKE protocol is a protocol in which all messages have source and destination addresses that are public keys. This is in the same way that IP packets have a source and destination address that is an IP address.
SpamGAME is an email classifier based on the GA.M.E. (GAussian Mono-dimensional Environment) algorithm for text categorization. It takes an email message on standard input, does a statistical check against lists of "good" and "bad" words found in the past emails received by the user, and returns the email message adding the email header 'X-Spam: yes|no'. In addition, as prefiltering methods, it uses whitelist/blacklist address filtering.
The Maximum Entropy Toolkit provides a set of tools and library for constructing maximum entropy (maxent) models in either Python or C++. It features conditional maximum entropy models, L-BFGS and GIS parameter estimation, Gaussian Prior smoothing, a C++ API, a Python extension module, a command line utility, and good documentation.
Sesame-wifi is a hot-spot management tool using dynamic firewall rules (netfilter/iptables) with an Apache-SSL interface based on Python-CGI. There are 2 kind of users. Normal users are supposed to have a static IP and MAC address, and their connection time can be summed. "Ticket" users are time-limited: they are allowed a connection for a certain time, after which their connection is destroyed.
Surnia can check an OWL ontology/knowledge base for inconsistency and entailments. It is implemented as a wrapper around first-order theorem prover (OTTER, for now at least). Unlike Hoolet (which turns the OWL into FOL), Surnia just turns the OWL into triples and mixes in axioms.