Free sinclair spectrum software for linux

libspectrum is a library designed to make the input and output of some ZX Spectrum emulator files slightly easier.

libspectrum is intended to be usable on Unix variants, Mac OS X and Win32. Currently, it is mainly (only?) used by Fuse, but other Spectrum emulator and utility authors are encouraged to use it.

Which formats does it support?

Snapshots:

read/write: .z80, .szx, .sna
read only: .zxs, .sp., .snp, +D snapshots

Tape images:

read/write: .tzx, .tap
read only: Warajevo .tap

Input recordings:

read/write: .rzx

Timex cartridges:

read only: .dck

Compressed files: reading of gzipped and bzipped files is transparently supported.

FFT Spectra is a tool for the visualization of frequency spectra of an audio signal.

Among other things, it can be used to verify whether you are able to sing and whistle in tune or to tune your guitar.

Examples:

Didgeridoo

Didgeridoo is actually the reason, why i started writing this software. The theory of physics explains that when you blow into a cylindrical tube (such as didgeridoo, but PVC pipe works as well) and vibrate your lips, standing waves develop inside the tube.

At that end of the tube, where the air leaves, there is nearly atmospheric pressure and the standing wave has a node there. At the other end, where one blows the air in, the changes in pressure are maximal and the standing wave must have an antinode here.

The situation is depicted on the picture on the right: The horizontal axis represents a position along the tube and the vertical axis represents a maximal pressure variation from the constant atmospheric pressure. The black vertical line represents a zero variation. The left black point is the mouth-side enpoint of the tube. The pressure variation are maximal here. The black point on the right is the open side od the tube - the pressure is constant here.

This node/antinode restriction permits only standing waves with appropriate wavelength (e.g. frequency) to be developed. Other frequencies are forbidden. So, the red curve is a minimal (fundamental) frequency, which is present in the didgeridoo sound. (Corresponds to 70Hz on the picture bellow).

If we squeezed the red curve twice, i.e. made the frequency twice as high, on both end-points there would be an antinode and the node/antinode constrain would not be fulfilled. Really, we see that the peak at 140Hz bellow almost disappears. If we squeeze the curve a little bit more to obtain the green curve, the boundary condition is again met and the peak at 210Hz is clearly visible bellow. And so on.

SpectraScan is a little helper program for those unlucky persons, who dont get their spectrums in an appropriate computer readable format, but on dead tree.

This project allows to convert a variety of spectrum types into a comma separated value format, which is suitable to be loaded into Excel or a statistic program.

Another feature is the ability to scan the axes of a spectrum.

InSilicoSpectro::InSilico::MSMSOutput is an object implementing common display/output methods for masses.

ATTRIBUTES

spectrum

A reference to a hash such as computed by MassCalculator::getFragmentMasses or an object of class MSMSTheoSpectrum.

expSpectrum

A reference to an experimental spectrum such as required by MassCalculator::matchClosest or an object of class ExpSpectrum. When this parameter is specified the constructor will assume that the hash spectrum contains data about the match with this experimental spectrum.

massIndex

The mass index in the experimental peak vectors, default 0. If expSpectrum parameter is an ExpSpectrum object this index is read from the object directly.

intensityIndex

The intensity index in the experimental peak vectors, default 1. If expSpectrum parameter is an ExpSpectrum object this index is read from the object directly.

tol

Relative mass error tolerance; this parameter is optional. When not specified, the matched masses found by the match algorithm are all preserved. When specified, the new tolerance is applied.

This parameter is mainly useful for match obtained via matchSpectrumClosest that does not apply any mass tolerance.

minTol

Absolute mass error, default value 0.2 Da. This parameter is used only in case tol parameter is specified, see above.

intSel

This parameter controls how the peak intensities are normalized, see function normalizeIntensities.

Parameter intSel is used provided expSpectrum was set.

prec

The number of digits after the decimal points for the masses. Default precision is 3 digits.

modifLvl

Controls how the modifications are highlighted in the vector splitPept defined below, see also function annotatePept.

cmp

This parameter is a reference to a comparison function used for sorting fragment names. If cmp is not set, the function cmpFragTypes is used instead.

zblast project is a simple but manic shoot-em-up game.

There are versions for both svgalib and X.

Theres also a cut-down port/rewrite for the Sinclair Spectrum, which fits in 4k. :-) I did that one as an entry for the 2003 Minigame competition.

F Modular Synthesizer (FMS) is basically a tool to generate all kinds of sounds. It should work on any up-to-date Linux system.
Main features:
Playing sounds
- with any frequency and volume
- one after another or at the same time (mixer) or both
- stereo (different sounds on different channels)
- with any balance between the two channels
- with built-in sweep that even follows frequency modulation
- like speech synthesis [listen]
- both on-the-fly playing with direct user access and asynchronous, pre-computed output; also combining the two, taking the best of both
- with all modulation options described below
Making noise
- now although it tends to get noisy in any way, we mean real noise here
- in 4 different ways
- nearly-white noise
- narrow band noise
Modulating
- amplitude (volume)
- frequency
- minima, maxima, amplitude and frequency of the modulation (here the "Fully Modular" comes to existence)
- balance, moving the sound from left to right and back in stereo mode
- narrowness of the noise frequency band in many different ways
Making music
- some-kind-of-midi-mapping mode (sound + envelope => instrument, FMS midi file format)
- auto-converter and player for MUS file format, listen [here] (Musplay)
- auto-composer for those who like a rather modern kind of music
- chords
Displaying
- spectrum of a sound
- oscillogram of a sound
- mixes between different sounds with different volumes / frequencies
Saving
- sounds as oscillograms in FMS file format (mathematical description, not complete wavetables)
- sounds as Fourier overtone amplitudes
- music in FMS midi format
- FMS output in wave format
- wave file sounds in FMS file format (auto-converter) - experimental
GUI
- a somewhat ugly and extremely limited tcl/tk gui
- FROCOR, an installation that connects the FMS sound backend to graphical interfaces and outputs
- a fully modular Qt GUI - experimental, but Ill give you a [screenshot]
Enhancements:
- This release fixes all bugs discovered via user feedback, and should be quite stable.
- Sweep frequency modulation is now implemented, and using both blur and frequency modulation on the same sound at the same time is possible.

This study guide from Linux Holdings will help you to train for the Linux LPI 101 exam.

Linux Holdings is a linux and Open Source training company, training Linux Administration as the core focus.

These are not the only Open Source courses we offer, but the most popular.

Training info

Linux Holdings offer a full spectrum of Linux and open source courses. These start from basic low-level courses to the very advanced administration courses.

All our administration courses are based on the international LPI certification. Our trainers are the best available in South Africa. They are not just excellent Linux administrators with many years experience; they are also the best trainers in the industry. Good administrators are not necessarily good trainers; we give you the best of both sides.

Our entry-level and intermediate courses include the ICDL for OpenOffice.org. We have a full marketing and development department constantly developing and updating courses. Linux Holdings invests huge amounts of time and resources in development, testing and research to give the best training available today.

Our quality department ensures that all students are trained to the highest standard possible. It is also the quality departments duty to ensure that students start with the right course so the learning gradient is not to high or to low. Speak to us so that we can suggest the proper courses for your IT experience.

Linux Holdings Linux study guide LPI 102.

Linux Holdings is a linux and Open Source training company, training Linux Administration as the core focus.

These are not the only Open Source courses we offer, but the most popular.

Training info

Linux Holdings offer a full spectrum of Linux and open source courses. These start from basic low-level courses to the very advanced administration courses.

All our administration courses are based on the international LPI certification. Our trainers are the best available in South Africa. They are not just excellent Linux administrators with many years experience; they are also the best trainers in the industry. Good administrators are not necessarily good trainers; we give you the best of both sides.

Our entry-level and intermediate courses include the ICDL for OpenOffice.org. We have a full marketing and development department constantly developing and updating courses. Linux Holdings invests huge amounts of time and resources in development, testing and research to give the best training available today.

Our quality department ensures that all students are trained to the highest standard possible. It is also the quality departments duty to ensure that students start with the right course so the learning gradient is not to high or to low. Speak to us so that we can suggest the proper courses for your IT experience.