Free conversion factors software for linux

Iris is a video conversion utility in C++ that works as a front-end to mencoder. Iris Video Conversion Utility can run in command-line or graphical modes and currently supports conversion to DVD MPEG, DivX AVI and VCD MPEG
This software intends to ease video conversion to common formats.
Help Wanted / TODO
- Cancel button does not always work
- More output formats
- Reset values for command-line format paramater
- re-work stderr redirection
- catch and identify mencoder conditions

Konverter is an easy to use but powerfull KDE video conversion tool. Konverter helps to convert almost every videofile into the most common different videoformats and codecs.

Beside converting, Konverter is also able to scale/crop your videos, change codec details or just changes the audio format of your file.

Also other features like splitting and concat videos, integrated realtime preview are included.

OpenInteract2::Conversion::ActionConfig is a Perl module that can convert old action.perl files into INI configurations.

SYNOPSIS

use OpenInteract2::Conversion::ActionConfig;

my $old_config_text = join( , );
print OpenInteract2::Conversion::ActionConfig
->new( $old_config_text )
->convert();

Utility for translating an action table configuration, either in a serialized Perl format or in an actual Perl hashref, into an INI format. It also does a few transformations along the way to make fieldnames/values consistent and ensure there are no deeply nested datastructures.

Factor project is a language based around a programming paradigm that encourages simple, testable and reusable code.
Factors main influences are Joy for the syntax, Forth for the implementation techniques, and Lisp for the object model. The source is released under a BSD-style license. Share it freely.
Main features:
- Runs on FreeBSD, Linux, Mac OS X and Windows.
- Native code compiler for x86 and PowerPC.
- Minimal postfix syntax with an extensible parser.
- Image-based environment offering orthogonal persistence.
- Polymorphism through predicate-based dynamic dispatch.
- Language support for delegation-based design patterns.
- Data structures include linked lists, vectors, and hashtables.
- User-defined types, known as tuples.
- Rich math library including big integers, floating point, ratios, complex numbers.
- Continuations.
- Profiling, tracing, single-stepping, browsing.
- Static stack effect inference.
- HTTP server and continuation-based web framework.
- C library interface.
- SDL graphics library interface.
- Focus on interactive and test-driven development.
- A plugin for the jEdit text editor offers a powerful development environment.
Reflection
Factor is defined in terms of itself as much as possible. Every layer of the system is inspectable and editable at runtime. Everything in the system carries consistent object semantics, and every object can be queried for its type and shape.
Metaprogramming
A powerful meta-level takes advantage of the duality between code and data. The object system, and even tools such as steppers, browsers, inspectors and profilers are built within the language framework.
Transparency
Nothing is hidden from the programmer. Factor is designed not as a black box, but a tool box. The programmer is encouraged to mold the language to fit the problem.
Simplicity
Everything is as simple as possible. The system should be small enough that one person can study the code and understand it completely. Unnecessary code and features are not included.

active acoustic vibration control tool is a set of basic tools for monitoring and modulating audio noise.

The tools aim toward a set of codes and algorithms for monitoring noise signal and modulation and reducing them using active noise control priciples.

Active noise control and soundproofing is a relativly recent development (first researched around 30 years ago), and has been in constant development for many and varied situations and applications.

The basic concept of active noise control is the aplication of equal and opposite force to cancel out vibration.

The project attempts to provide a starting point and library for experimentation into various methods of digital signal processing for active noise reduction and soundproofing.

Noise cancellation has been used in many environments currently active control is best used in constant vibrations with lower frequencys.

The principle is of controlling the noise level by adding an equal and opposite sound to the noise in the environment. The basic principle may be simple but the actual effectivness depends on many environmental factors.

Generally simplistic out of phase sound wave is used which works to some extent and requires little processing (a simple XOR with -1) this will tend to leave a large number of artifacts as the amplitude of higher frequency components (above i->o delay time) rises.

i->o processing delay
e transducer efficiency
p sound propagation characteristics
r reflections

The project aims to provide a framework for many dsp architectures, dac/adc chips, transducers and monitors.

Create tools for acoustic calibration and data logging hardware
To simplify implementation of active noise and vibration control systems.
To provide an open source standard for use within the industry and education.
To encourage hardware producers to distribute standard interface descriptions for their hardware
Enable low cost development of systems using COTS consumer hardware for noise and vibration control.

tkCybernetics project is a lightweight cybernetics simulator.
It was designed for didactic purposes, but might be useful for quick tests of circuits.
Main features:
- The usual elements (all apropiately parameteryzable) are available - highpass filter, lowpass filter, integrator, sums, characteristics, completely customizable functions, factors, input-functions and output at arbitrary points of the circuit.
- The results are displayed as graphs and can be exported as postscript. Does currently not support saving of circuits. Checks if circuits are logicaly correct. Its NOT intended for simulation of artificial neural networks or really complex siystems. Its extensible, but only if you know Tcl (and know it well) - port to Python considered.