Free sound waves software for linux

Sound Mural is a picture-to-sound converter plugin for Xpaint.
An image that has been loaded or composed in Xpaint is treated as a spectrogram, and the corresponding audio is written out as a WAV file.
Examples of what Sound Mural can do, can be seen and heard on the Sound Mural Web page.
To use sound mural, you need an XPaint that supports loading precompiled filters. Future official versions of XPaint might support this, but until then you can download the source here.
The modification adds a "Load Precompiled Filter" menu item to the C_Script menu. It pops open a file selection box, and you select a .so file which contains a precompiled filter, which it loads.
After it is loaded, you can run the filter from the "User Defined Filter" in the "Filters" menu. Although this modification was made to XPaint to support Sound Mural, it might be generally useful.
Your X needs to be running in 24 bit color mode or better. Otherwise it will work but performance will be bad. It is probably a good idea to use a pure white background color in XPaint.
Non-white background colors result in constant background noise in the output of Sound Mural. And pure white pixels require no processing, so it goes much faster if most of the image is pure white.
Installation and use:
Type make to compile. You must have an XPaint that has the PRECOMPILED_FILTERS feature. If you have that, then you can load this module from
Selectors -> C_Script_Editor -> File -> Load_Precompiled_Filter
After it is loaded, you invoke Sound Mural by
Filters -> User_Defined_Filter
Each time you invoke sound mural, it will render the canvas as audio, and write a WAV file to the location specified in soundmural.c. The default location is /tmp/soundmural.wav.
Enhancements:
- Sound Mural is now a freestanding command line program.
- It reads a PNG on stdin and writes WAV on stdout.

Ice Sound Manager was designed to ease the management of sound events, sound themes, and the IceSound server in the IceWM environment under Linux/Unix. It is also intended to be an improvement upon the noble, but primitive icesndcfg.
The main improvements over icesndcfg include a support for sound event "themes", more comprehensive help, easy management and configuration of the IceSound server, a cleaner GUI interface, automatic starting of the IceSound server, and a more conservative approach to disk space usage. In addition, Ice Sound Manager includes a built-in "Setup" program which runs the first time you run Ice Sound Manager.
The application is written in Python (making it more easily ported across various platforms and architectures) and uses GTK through the PyGTK libraries. This application is available in both .tar.bz2, RPM, and static binary (for people without Python/PyGtk).
Please note that the tar.gz file does NOT need to be compiled (this is python, remember). System requirements are as follows: Python 2.2, PyGTK-2 1.9.9/2.0.0, IceWM (or IceWM-Gnome) 1.2.0 or better - with the IceSound Server executable (generally called, icesound or icesound-gnome). IceWM version 1.2.6 or better is highly recommended.
NONE of the following is required: Gnome, Gnome libs, or PyGnome (python-gnome). This application has NOT been tested with earlier versions of Python, IceWM, PyGTK, and IceSound Server. I cant say that it wont work with earlier versions, but I certainly cant say that it will. This application has NO dependencies on Gnome. 8-)
This software is distributed under the GPL license (included in the documentation and source code): Its free and open source for all legal and NON-commerical use, copying, modification, and redistribution, provided all of the authors credits are left in-tact and unmodified. This software is distributed AS-IS, with no warranty whatsoever. Copyright (c) 2002-2004 Erica Andrews (PhrozenSmoke[at]yahoo.com). All rights reserved.
Ice Sound Manager has been designed and tested in the following environment(s): Mandrake 8.1, SuSe 8.1, Kernel 2.4.8 / 2.4.19, Glibc 2.2.4 / 2.2.5, XFree86 4.0.1 - 4.3.0, Python 2.2 - 2.2.1, PyGtk 0.6.9/PyGtk-2 2.0.0, Gtk version 1.2.8-4-1.2.10, Gtk+2 version 2.0.6, IceWM 1.0.9 - 1.2.15, IceWM-Gnome 1.0.9 / 1.2.2, with both icesound and icesound-gnome sound server executables. The test computers (3) were all Pentium 1, ranging in memory from 64MB to 256MB - nothing spectacular. It should run well on very old computers.
Requierments:
- Access to a Bash shell (very important), Python (2.2 or better), PyGtk-2 (1.9.9/2.0.0 or better), and Gtk+ 2.0.6 or better - neither Gnome nor PyGnome is required. (IceWMCP versions 2.5 and earlier require Gtk+1 and PyGtk-1 0.6.9) Repeat: IceWM requires NOTHING gnome-related.
- Also, your version of PyGtk should have the Gdk-Pixbuf modules on your system. Please run ALL IceWMCP programs from a BASH shell: Using other shells such as ksh, pdksh, csh, tcsh, etc. is likely to cause problems. If your IceWMCP programs have trouble launching other applications, it is most likely because you are using something other than a Bash (/bin/bash) shell. Run the programs from Bash...period! If you attempt to run the application and get ANY kind of error that says something like "Import Error", it means YOU do not have all the necessary Python libraries installed or do not have them installed correctly: This is NOT a bug, so do not file a bug report when you dont have the necessary software properly installed. Getting Python and PyGtk and getting them setup right is YOUR business. DO NOT ask for help installing Python, PyGtk, or GdkPixbuf. I recommend you get them from: http://speakeasy.rpmfind.net. If you are using a Python version lower than 2.2 and are too lazy to upgrade, use the "binary" distribution of IceWM Control Panel, or dont bother at all. NOTE: These requirements apply only to the standard pure-python version of IceWM Control Panel. Compiled, binary copies of IceWM Control Panel are stand-alone executables that do NOT require Python or PyGtk.
- Disk space requirements: The standard, pure-Python version of IceWM Control Panel uses approximately 1.75-2.2 MB of disk space - very small! The compiled, binary version of IceWM Control Panel uses about 3.7 MB of disk space. Yes, the binary version is large, so people too lazy or impatient to install Python and PyGtk properly and choose to use the stand-alone binary version will pay with disk space. At last check, the Hardware (or System) plug-in uses about 1.9 MB of disk space (most of it being the hardware ID data file).

Cow is something like a waveform editor in that it generates a wave file from one or more graphs for amplitude and frequency. It has a graphical user interface that simplifies this process.

First i wrote some classes to generate wavefiles with graphs for amplitude and frequency. Thats really simple sound synthesis. The waveformeditor of Christopher Rowley[1] inspired me. As it worked i made a little GUI just because its more compfortable to edit the
graphs... Ok. I could produce sounds, thats fine. Someone lend me a midi-keyboard and i programmed something to play the sound at different tonepitches. Well, thats it. Was a funny project, still works for me, but i guess it is dead. This will be the last release so
far. Hope you have fun with it .

cowman reads midi-events from /dev/midi00 and plays the apropriate note on /dev/dsp. You must start it with a cow-file as command-line-option or with a configfile. See manpage.

Snd is a freeware sound editor modelled loosely after Emacs and an old, sorely-missed PDP-10 sound editor named Dpysnd.

It can accommodate any number of sounds, each with any number of channels. It can be customized and extended using Guile or Ruby.

xdesktopwaves is a cellular automata which sets the background of an X11 desktop as if it were under water.

Window and mouse movements cause ripples on the desktop like ships on the sea. You can also simulate rain or a storm stirring up the water.

WaveSurfer is an Open Source tool for sound visualization and manipulation. It has been designed to suit both novice and advanced users. WaveSurfer has a simple and logical user interface that provides functionality in an intuitive way and which can be adapted to different tasks.
It can be used as a stand-alone application for a wide range of tasks in speech research and education. Typical applications are speech/sound analysis and sound annotation/transcription. WaveSurfer can also serve as a platform for more advanced/specialized applications. This is accomplished either through extending the WaveSurfer application with new custom plug-ins or by embedding WaveSurfer visualization components in other applications.
Main features:
- Multi-platform - Linux, Windows 95/98/NT/2K/XP, Macintosh, Sun Solaris, HP-UX, FreeBSD, and SGI IRIX
- Flexible interface - handles multiple sounds
- Common sound file formats - reads, and writes WAV, AU, AIFF, MP3, CSL, SD, Ogg/Vorbis, and NIST/Sphere
- Transcription file formats - reads, and writes HTK (and MLF), TIMIT, ESPS/Waves+, and Phondat. Support for encodings and Unicode.
- Unlimited file size - playback and recording directly from/to disk
- Sound analysis - e.g. spectrogram and pitch analysis
- Customizable - users can create their own configurations. Localization support.
- Extensible - new functionality can be added through a plugin architecture
- Embeddable - WaveSurfer can be used as a widget in custom applications
- Scriptable - hosts a built-in script interpreter
Enhancements:
- Mouse- and key binding updates:
- shortcuts keys for recording
- support for multiple popup events (shift-left-button and right-button are now the default on all platforms)
- Misc. bug fixes including zoom in/out mixup

Simple Sound for Small Devices (libsssd) is a simple cross-platform audio library. Simple Sound for Small Devices is designed primarily for games on portable devices such as smart phones, PDAs, and hand-helds.
Simple Sound for Small Devices is designed as a very portable, cross-platform API for sound playback on small and embedded devices. Target platforms include smartphones, PDAs, Smart displays, webpads and embedded systems.
Target OSes include Linux (OSS/Free), Win32, WinCE/PPC/Smartphone, Symbian, and AmigaDE (both hosted and native). The library is biased toward real-time audio applications (like games), but is suitable for a wide array of other uses.
Installation:
To install the libsssd library, cd to the src direcotry and type make install
To make the demo applications, cd to the test directory and type make
Enhancements:
- Updated code to work with libsndfile 1.0.5
- Modularized each function for OSs that support tool libraries (AmigaDE)
- Added initAudio() and freeAudio() functions to allocate the control structure as different compilers may not pack the struct the same.
- Added support to init the audio player with different sample rates, bit depths, and channels (stereo, mono). Added support for user setting max number of playing channels and max number of cached samples at init time.
- fixed bug in player thread overflow functions (la,lb)