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Audio::MPD gives a clear object-oriented interface for talking to and controlling MPD (Music Player Daemon) servers. A connection to the MPD server is established as soon as a new Audio::MPD object is created. Note that the module will by default connect to mpd before sending any command, and will disconnect after the command has been issued. This scheme is far from optimal, but allows us not to care about timeout disconnections. /!\ Note that Audio::MPD is using high-level, blocking sockets. This means that if the mpd server is slow, or hangs for whatever reason, or even crash abruptly, the program will be hung forever in this sub. The POE::Component::Client::MPD module is way safer - you're advised to use it instead of Audio::MPD. Or you can try to set conntype to $REUSE (see Audio::MPD constructor for more details), but you would be then on your own to deal with disconnections.

Perl Audio Converter (PAC) is a tool for converting multiple audio types from one format to another. It supports the following audio formats: ------------------------------------------------------------ 3G2, 3GP, 8SVX, AAC, AC3, ADTS, AIFF, AL, AMB, AMR, APE, AU, AVR, BONK, CAF, CDR, CVU, DAT, DTS, DVMS, F32, F64, FAP, FLA, FLAC, FSSD, GSRT, HCOM, IMA, IRCAM, LA, MAT, MAUD, MAT4, MAT5, M4A, MP2, MP3, MP4, MPC, MPP, NIST, OFF, OFR, OFS, OPUS, OGA, OGG, PAF, PRC, PVF, RA, RAM, RAW, RF64, SD2, SF, SHN, SMP, SND, SOU, SPX, SRN, TAK, TTA, TXW, VOC, VMS, VQF, W64, WAV, WMA, and WV. It can also extract audio from the following video extensions: -------------------------------------------------------------- RM, RV, ASF, DivX, MPG, MKV, MPEG, AVI, MOV, OGM, OGV, QT, VCD, SVCD, M4V, NSV, NUV, PSP, SMK, VOB, FLV, WEBM and WMV. Parallel processing, a CD ripping function with CDDB support, batch conversion, tag preservation for most supported formats, independent tag reading & writing, service menus for KDE Dolphin/Konqueror are also provided.

Basically, SIDPLAY is just an ordinary music player software. More specifically, it emulates the Sound Interface Device chip (MOS 6581, known as SID) and the Micro Processor Unit (MOS 6510) of the Commodore 64 on your computer. Its platform-independent software emulates hardware components. Therefore it is able to load and execute C64 machine code programs which produce music or sound. In general, these are independent fragments of code and data which have been ripped from games and demonstration programs and were transferred directly from the C64. All you need is a supported operating system and audio hardware with average PCM waveform playback capabilities. A fast CPU and a 16-bit sound card are recommended for better performance.

adapted from the Web page and the README: Spiral Synth is a physically modelled, monophonic, analogue synthesizer. It is capable of creating the kind of sounds made by hardware analogue synths, the noises used in electronic music. You can also use it to make stranger sounds. MIDI is supported, including velocity detection, mapped to the volume of the oscillators (but you can also use the PC keyboard to play the synth). Output is to /dev/dsp or in Microsoft RIFF (.WAV) format to a file. You can save and recall your sounds using the 100 patch save slots. The PC keyboard can be used to play the synth, "q" & "z" are C, and the keys progress from them: "2" is C#, "w" is D, etc. These are just the defaults, and can be changed from the .Spiralrc file. The function keys change the octave. Sample output and a detailed list of features can be found on the home page. Trevor Johnson

Netperf is a serious networking performance evaluation tool being distributed under GPL by HP's Information Networks Division. Testing is done using a pair of programs: `netserver' (the server) and `netperf' (the measurement tool). Netperf allows control over a large number of test `variables'. Some of these are: * specification of desired confidence levels for the tests Netperf will warn the user if these levels were not achieved. * filling send buffers with specified data (to beat compression schemes) * specification of send/receive buffer alignments and data offsets * requesting CPU utilization and service demand calculations * specification of sizes of data to send Netperf can be used for measuring stream performance as well as round-trip performance.

The other benchmark modules provide excellent timing for specific parts of your code. This module aims to allow you to easily time the progression of your code. The stopwatch analogy is that at some point you get a new stopwatch and start timing. Then you note certain events using lap. Finally you stop the watch and then print out a summary. The summary shows all the events in order, what time they occurred at, how long since the last lap and the percentage of the total time. Hopefully this will give you a good idea of where your code is spending most of its time. The times are all wallclock times in fractional seconds. That's it.

The computer program avida is an auto-adaptive genetic system designed primarily for use as a platform in Digital or Artificial Life research. The avida system is based on concepts similar to those employed by the tierra program developed by Tom Ray. It is a population of self-reproducing strings with a Turing-complete genetic basis subjected to Poisson-random mutations. The population adapts to the combination of an intrinsic fitness landscape (self-reproduction) and an externally imposed (extrinsic) fitness function provided by the researcher. By studying this system, one can examine evolutionary adaptation, general traits of living systems (such as self-organization), and other issues pertaining to theoretical or evolutionary biology and dynamic systems.

Crux is a software toolkit for molecular phylogenetic inference. It is structured as a set of Python modules, which makes it possible to quickly develop Python scripts that perform unique, non-canned analyses. Features include: * Tree log-likelihoods can be computed under a variety of models, including all specializations of GTR+I+G and mixture models. Tree likelihoods can be computed in parallel via pthreads. * Bayesian Markov chain Monte Carlo (MCMC) methods (with Metropolis coupling) can sample among non-nested models using reversible model jumps. * Crux is capable of simulating character data under any model its likelihood engine is capable of. * The neighbor joining (NJ) and relaxed neighbor joining (RNJ) implementations are among the fastest in existence. * Pairwise distances between sequences can be computed based on percent identity, or using methods that correct for multiple hits (Jukes-Cantor, Kimura, and logDet).

The European Molecular Biology Open Software Suite (EMBOSS) is a comprehensive set (about 100) of open source tools for genetic sequence analysis. EMBOSS is produced by the European Molecular Biology Network (EMBnet - http://www.embnet.org/). All EMBOSS tools are all built around the same set of core libraries - AJAX and NUCLEUS - and therefore share a unified user interface, have similar "look and feel", and implement a uniform sequence addressing methodology. The various components of EMBOSS are distributed under the GPL, except the core libraries which are under the LGPL. EMBASSY packages are third party applications which have been integrated with the EMBOSS suite, but which are not included in the base EMBOSS distribution for licensing or other reasons. The EMBASSY packages live in the biology/embassy port.

GPL Cver is a full 1995 P1364 Verilog standard HDL simulator. It also implements some of the 2001 P1364 standard features including all three PLI interfaces (tf_, acc_ and vpi_) as defined in the 2001 Language Reference Manual (LRM). Verilog is the name for both a language for describing electronic hardware called a hardware description language (HDL) and the name of the program that simulates HDL circuit descriptions to verify that described circuits will function correctly when the are constructed. Verilog is used only for describing digital logic circuits. Other HDLs such as Spice are used for describing analog circuits. There is an IEEE standard named P1364 that standardizes the Verilog HDL and the behavior of Verilog simulators. Verilog is officially defined in the IEEE P1364 Language Reference Manual (LRM) that can be purchased from IEEE. There are many good books for learning that teach the Verilog HDL and/or that teach digital circuit design using Verilog.