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ClearParse project is a flexible engine that can be used for any parsing task including interpreting or compiling programming languages, analyzing or converting data files, processing command line parameters and user input, implementing markup languages and scripts, natural language processing (NLP), and more.
Main features:
Dynamic grammar handling
- Saves development time and makes your product more flexible because theres no need to rebuild your application or recompile generated parser code whenever your grammar or parsing task changes. The engine doesnt have to change; you just load a new grammar. Grammars can also be dynamically linked, downloaded from the Internet at run time, or completely created on the fly at run time.
Modular grammars
- Faster grammar development by reusing grammar code and combining existing grammars.
Descriptive grammar specification language
- No need to understand and decipher cryptic grammar definition notation. Unlike mathematical notations, the Grammar Definition Markup Language (GDML) uses descriptive tags similar to HTML/XML that are easy to remember, understand, and read.
Intelligent error recovery
- Have full control over the processing of files and easily design grammars that recover from error situations.
Parse many sources simultaneously
- Take advantage of multi-tasking for large parsing tasks that involve many files.
Source code available (ClearParse Professional)
- Reduce debugging time by viewing and tracing through the actual source of the engine. Embed ClearParse Professional into your code base or port it to other platforms.
Platform-independent implementation
- Although the ClearParse parser is compiled for a particular platform, its written so that it can be easily ported to other platforms to fit your needs.

Advanced SCORM Editor is an e-learning content generation tool based on the SCORM standard.
It is a comprehensive integrated SCORM manifest editing environment with a powerful graphical editor for generating SCORM metadata that improves productivity and dramatically decreases authoring time by replacing the traditional error-prone, time-consuming, manual XML manifest editing.
Advanced SCORM Editor comes with a comprehensive set of features and capabilities: a fast, powerful, standards-based, user-friendly SCORM manifest editor that enables you to easily create complex SCORM content that can operate with any compliant LMS.
Main features:
- SCORM 1.2 and 1.3 conformant
Reads SCORM 1.2 and 1.3 contents. Generates manifests using SCORM 1.3 standard. All contents can be interpreted by any compliant LMS server.
- Content Generation Wizard
Easy-to-use content generation wizard that creates SCORM compliant manifests. Includes wizards to create lessons and tests with multiple resources:
- Lesson Wizard: Allows defining a lesson title and its contents.
- Test Wizard: Allows creating multiple-choice tests with one or more possible answers, as well as fill-the-blanks questions.
- Sequencing Rules: Supports no sequencing, forward-only and lineal sequencing.
- Manifest Tree view
All manifests are presented as a tree, allowing the user to visually define advanced SCORM content and easily adding, editing and deleting elements. Supports copying, pasting and deleting elements. All actions such as moving, deleting, editing elements or changing properties can be undone or redone. Includes drag-and-drop support for moving or copying manifest elements. Relative base and href tag handling.
- Property View
Allows the user to quickly display and update properties of each element. A helpful in-line help explaining the property is displayed when selecting elements.
- Problem View
Displays a detailed list of errors detected on the manifest and proposes solutions to them.
- Content analyzer with on-screen error reporting
Provides an extensive array of sophisticated analytical tools to diagnose manifest problems in real time by graphically displaying all detected syntax or design errors in an intuitive user interface, enabling quick response to issues that need attention and proposing possible solutions to detected issues.
- Resource Viewer
Allows to display resources within the manifest using a built-in viewer. Includes syntax highlighting for JS and XML files.
- Automatic Bundle Generation
Upon user request, generates a ZIP file containing the manifest and all external resources. All generated bundles are fully compliant with SCORM LMS servers.
- SCORM 1.2 to 1.3 migration
Supports migrating SCORM version 1.2 manifests to SCORM 1.3 in two easy steps.
Version restrictions:
- 30 days Trail

Red Hat Enterprise Linux v.4, released in February 2005, provides significant technology enhancements over the v.3 release. Areas of specific development include improvements in security capabilities, increased server performance and scalability, and enhanced desktop capabilities?all while ensuring a high level of compatibility with prior releases.
Red Hat Enterprise Linux supports a wide range hardware and software applications, and is the worlds leading enterprise-focused Linux environment.
The following section outlines a few of the major new features in Red Hat Enterprise Linux v.4:
Linux 2.6 kernel infrastructure
Red Hat Enterprise Linux v.4 provides the most stable and robust commercial product based on the Linux communitys 2.6.9 kernel. Open source projects such as Fedora provided an environment for the Linux 2.6 kernel to mature significantly during 2004.
As a result, the Red Hat Enterprise Linux v.4 kernel offers numerous improvements over earlier kernels, including many enhanced algorithms and features:
- Generic logical CPU scheduler: Handles multi-core and hyperthreaded CPUs.
- Object-based Reverse Mapping VM: Improved performance in memory constrained systems.
- Read Copy Update: SMP algorithm optimization for operating system data structures.
- Multiple I/O schedulers: Selectable based on the application environment.
- Enhanced SMP & NUMA support: Improved performance and scalability for large servers.
- Network interrupt mitigation (NAPI): Improved performance for heavy network loads.
Improved storage and file system capabilities
Numerous enhancements have been incorporated into Red Hat Enterprise Linux v.4 that improve the scalability and performance of the data storage subsystems, including:
- Ext3 performance: Block Reservations and Hash Tree Directories improve the performance of read/write I/O and directory scanning operations.
- Ext3 scalability: Dynamic file system expansion and file system sizes up to 8TB are now supported.
- Logical Volume Management: A comprehensive update to the LVM provides new features such as read/write snapshots and transactional metadata updates, along with a flexible new management GUI. Mirroring and enhanced multipathing are scheduled for delivery by mid 2005.
- Scalability: Enhanced storage LUN management makes it possible to configure much larger storage subsystems.
- Automounting: The inclusion of AutoFSv4 provides sophisticated device access control, supporting features such as browsable mounts and replicated servers.
- Cost reduction: Support for Serial ATA disk storage provides increased performance, higher densities, and reduced cost per megabyte over traditional IDE devices.
New security capabilities
Provision of sophisticated security capabilities has been a specific development focus of the Red Hat Enterprise Linux v.4 release. New features:
- Mandatory Access Control: Security Enhanced Linux (SELinux) provides a MAC infrastructure that complements the existing Discretionary Access Control security features provided by the standard Linux environment. In a MAC-based environment, application capabilities and privileges are set by predefined policies and enforced by the kernel. This prevents errant applications from compromising system security.
- Memory management enhancements: Several features, including Exec Shield and Position Independent Executables, combine to prevent applications from being exploited by attacks such as buffer overflows.
- Compile and runtime consistency checking: New buffer validation techniques in the GCC compiler and Glibc library greatly reduce the risk of faulty applications being compromised.
Improved desktop capabilities
Significant emphasis has been placed on providing a feature-rich, easy-to-use, desktop environment for all Red Hat Enterprise Linux family members (including Red Hat Desktop). A brief summary of new features:
- Personal productivity: Advanced user capabilities are provided by the OpenOffice.org productivity suite, the Firefox web browser and Evolution email client
- Plug-and-play device support: Easy handling of devices such as USB disks and digital cameras (as well as photo management applications such as gThumb)
- Multimedia: Applications for audio, video, and streaming content such as RhythmBox, HelixPlayer, Totem, and SoundJuicer
- User environment: GNOME 2.8 provides numerous enhancements for a more consistent graphical look and feel. Comprehensive management tools (e.g. printer and network management and VNC-based application session sharing) and utilities (e.g. Gaim instant messaging, and GIMP image processing) combine to provide a complete and highly functional user experience.
- Interoperability: Technologies that allow user login authentication with Microsoft Active Directory, NTLM authentication for web-based applications, Evolution mail client access to Windows Exchange Servers
- IIIMF: The Internet/Intranet Input Method framework provides the next-generation multilingual Unicode input method framework. It offers many features, such as full Unicode support and the ability to run multiple concurrent language engines.
Miscellaneous features
As a major new release, almost every aspect of Red Hat Enterprise Linux has been enhanced. Some of the more important improvements:
- Compatibility with prior releases: Red Hat Enterprise Linux v.4 includes compatibility libraries that enable most v.3 and v.2.1 applications to continue to run without modification.
- Languages: Focused on international standards, such as OpenI18N and GB18030, Red Hat Enterprise Linux has documentation and software available in 15 languages: English, Japanese, German, Brazilian Portuguese, Korean, Italian, French, Simplified Chinese, Traditional Chinese, Spanish, Devnagari, Bangla, Punjabi, Tamil, Gujarati.
- Auditing: In an update planned for mid-2005, a new auditing facility will be available that provides an open, bidirectional socket interface that can be used by auditing applications. It provides comprehensive auditing capabilities for SELinux and standard Linux events.
- File serving: Provision of NFSv4 provides features such improved security, operation coalescing and integrated file locking, while Samba provides easy access to Microsoft Windows printers and file shares.
- Software development: The latest GCC 3.4 compiler toolchain, and a technology preview of the forthcoming GCC 4.0 toolchain, are provided. These offer standards-compliant C/C++ and Fortran 95 development environments.
- Advanced configuration and power interface: Support for the ACPI standard enables a wide range of power management capabilities (battery monitoring, automated power down, suspend), and provides a foundation for increasingly sophisticated features in the future.
- Extras: Optional software is provided on the Red Hat Enterprise Linux Extras CD and Red Hat Network channel. This includes features such as additional desktop applications (e.g. Adobe Reader, Macromedia Flash), Java environments, and printroom-quality Agfa/Monotype fonts.
Main features:
Server features summary
- Databases - Leading open source databases: PostgreSQL, MySQL
- Development - Environments for C, C++, Java, Fortran with Perl, Python, CVS and Emacs
- Engineering - Computational tools including blas, pvm, and lam
- File servers - FTP, NFS, and Samba (CIFS)
- Mail server - IMAP/POP servers with Cyrus, Sendmail, spamassassin
- Networking - Complete suite of network servers and firewall
- Printing - CUPS/lpr printing systems
- Security - Extensive features including SSL, IpSec, MAC/DAC
- Web server - Apache server with numerous mod/php plugins
Client features summary
- Document preparation - OpenOffice.org office suite 1
- Extensive Microsoft interoperability
- Laptop power management - APM/ACPI
- Mail - several clients including Evolution
- Multimedia support - applications for multiple audio/video formats
- Plug-and-play device support
- RDP terminal services
- Remote desktop sharing/collaboration
- User interface - GNOME-based with optional KDE
- Web browsing - Firefox
- Wireless support
- X Windows system

Transcribe! project is an assistant for people who sometimes want to work out a piece of music from a recording, in order to write it out, or play it themselves, or both.
The usual technique for doing this is to copy the music to cassette and then listen repeatedly to each bit, using your ear and your brain to work out what is happening. Unless you have perfect pitch then you also need a piano or a guitar handy to check out which note is which. However, if you copy the recording to your computers hard disk as a sound file then you can use Transcribe! instead of the cassette machine and the piano.
Transcribe! offers many features aimed at making the transcription job smoother and easier, including the ability to slow down music without changing its pitch, and to analyse chords and show you what notes are present.
It is important to understand that Transcribe! does not attempt to do the whole job, processing an audio file and outputting musical notation - this would be nice, but is a currently unsolved research problem. The spectrum analysis feature is very useful for working out those hard-to-hear chords, but you must still use your ear and brain to decide which of the peaks in the spectrum are notes being played, which are merely harmonics, and which are just the result of noise and broad-spectrum instruments such as drums.
If you have never worked out even a simple piece of music by ear then Transcribe! will probably not help you (see How to Transcribe), but if you do sometimes work out recorded music by ear then Transcribe! can make the job a lot quicker and easier.
Transcribe! takes no interest in MIDI files - these already contain explicit information about what notes are to be played and when, and there are plenty of programs available which can display this information. Transcribe! deals with audio sample data files.
Transcribe! plays and records audio files but it is not an audio editor. It is capable of applying various effects to audio such as speed change, pitch change and EQ. You can save the modified audio to a new sound file if you want.
Main features:
- Depending on version, Transcribe! reads audio from many different types of audio file and audio CD. It also has a "Record" facility for recording from analog sources such as cassette or vinyl. It displays the audio waveform and allows you to scroll around, place markers for sections, measures and beats, and easily play or loop from any point.
- Loops and positions can be stored and recalled. There are many keyboard shortcuts and you can configure these as you like (in version 7). You can configure Transcribe! to respond to pedals of various types so as to keep your hands free : start and stop playback with your feet!
- There is extensive and readable help accessible from within the program.
- The "spectrum" feature displays the strength of the various pitches in any chord or note you select, in the form of a graph - a wavy line over a piano keyboard graphic. The height of the various peaks in the graph indicate the strength of the note above which the peak appears. This is not a magic bullet for analysing chords but it can be a very useful source of information.
- Transcribe! offers various audio processing effects (Slowdown, Pitch Change, EQ filtering etc) intended to help with transcribing. These effects all run in "real time" unless your machine is old & slow. This means there is no pre-processing or other waiting, the processing is performed on-the-fly while playing and you can instantly hear the effect of changes to EQ etc. For instance if you press the half-speed button while playing then playback simply continues, at half speed.
Mono/Karaoke
- This effect allows you to mix the two channels of a stereo recording together in various ways including phase-reverse, commonly known as "karaoke" as it sometimes has the effect of removing the vocal (if the vocal is panned dead-centre).
EQ
- A powerful EQ filter.
Tuning
- Adjustment to playback pitch, in cents (hundredths of a semitone) for fine tuning and also larger shifts of up to two octaves, which can for instance be useful in hearing low, murky bass parts by raising them by an octave or two.
Transposition
- Special handling for those of you who play a transposing instrument such as trumpet or saxophone.
Speed
- Speed variable from one twentieth to double speed.
- Click here for an MP3 file (373 KB) demonstrating the sound quality of slowdown-without-pitch-change. It contains 7 seconds of a guitar solo played quite fast, followed by the same at half speed. This is what you get when you press Transcribe!s half-speed button (version 7.20). I havent bothered to give lots of samples, since you can download Transcribe! for a free trial period and try it yourself.
Flyer
- Sometimes people ask me for a printed information sheet about Transcribe!. I dont distribute printed materials but here is a single-sided information sheet as a pdf (Adobe Acrobat) file which you are welcome to download and print out.