The core element of Csound is an audio engine for the Csound language. It has no graphical interface and it is designed to take Csound text files (called ".csd" files) and produce audio, either in realtime, or by writing to a file. It can still be used in this way, but most users nowadays prefer to use Csound via a frontend. A frontend is an application which assists you in writing code and running Csound. Beyond the functions of a simple text editor, a frontend environment will offer colour coded highlighting of language specific keywords and quick access to an integrated help system. A frontend can also expand possibilities by providing tools to build interactive interfaces as well, sometimes, as advanced compositional tools.
In 2009 the Csound developers decided to include CsoundQt as the standard frontend to be included with the Csound distribution, so you will already have this frontend if you have installed any of the recent pre-built versions of Csound. Conversely if you install a frontend you will require a separate installation of Csound in order for it to function. If you experience any problems with CsoundQt, or simply prefer another frontend design, try WinXound, Cabbage or Blue as alternative.
Csound6 has been released in spring 2013. It has a lot of new features like on-the-fly recompilation of Csound code (enabling forms of live-coding), arrays, new syntax for using opcodes, a redesigned C/C++ API, better threading for usage with multi-core processors, better real-time performance, etc.
To get Csound you first need to download the package for your system from the SourceForge page: http://sourceforge.net/projects/csound/files/csound6
There are many files here, so here are some guidelines to help you choose the appropriate version.
Windows installers are the ones ending in .exe. Look for the latest version of Csound, and find a file which should be called something like: Setup_Csound6_6.02.0.exe. One important thing to note is the final letter of the installer name, which can be "d" or "f". This specifies the computation precision of the Csound engine. Float precision (32-bit float) is marked with "f" and double precision (64-bit float) is marked "d". This is important to bear in mind, as a frontend which works with the "floats" version will not run if you have the "doubles" version installed. More recent versions of the pre-built Windows installer have only been released in the "doubles" version.
After you have downloaded the installer, you might find it easiest just to launch the executable installer and follow the instructions accepting the defaults. You can, however, modify the components that will be installed during the installation process (utilities, front-ends, documentation etc.) creating either a fully-featured installation or a super-light installation with just the bare bones.
You may also find it useful to install the Python opcodes at the this stage - selected under "Csound interfaces". If you choose to do this however you will have to separately install Python itself. You will need to install Python in any case if you plan to use the CsoundQt front end, as the current version of CsoundQt requires Python. (As of March 2013, Version 2.7 of Python is the correct choice.)
Csound will, by default, install into your Program Files folder, but you may prefer to install directly into a folder in the root directory of your C: drive.
Once installation has completed, you can find a Csound folder in your Start Menu containing short-cuts to various items of documentation and Csound front-ends.
The Windows installer will not create any desktop shortcuts but you can easily do this yourself by right-clicking the CsoundQt executable (for example) and selecting "create shortcut". Drag the newly created shortcut onto your desktop.
The Mac OS X installers are the files ending in .dmg. Look for the latest version of Csound for your particular system, for example a Universal binary for 10.9 will be called something like: Csound6.02.0-OSX10.9-x86_64.dmg. When you double click the downloaded file, you will have a disk image on your desktop, with the Csound installer, CsoundQt and a readme file. Double-click the installer and follow the instructions. Csound and the basic Csound utilities will be installed. To install the CsoundQt frontend, you only need to move it to your Applications folder.
Csound is available from the official package repositories for many distributions like OpenSuse, Debian, Ubuntu, Fedora, Archlinux and Gentoo. If there are no binary packages for your platform, or you need a more recent version, you can get the source package from the SourceForge page and build from source. You will find the most recent build instructions in the Build.md file in the Csound sources or in the Github Csound Wiki.
After installing git, you can use this command to clone the Csound6 repository, if you like to have access to the latest (perhaps unstable) sources:
git clone git://github.com/csound/csound.git
The develop sources can be found on the develop branch: https://github.com/csound/csound/tree/develop. There you will find a button Download Snapshot, that will allow you to download the latest sources.
In the develop branch you will find a file called "BUILD.md". This file contains the latest instructions on how to build Csound6 for
Mac OS X using Homebrew
General Instructions for Linux without Root access
Raspberry PI standard OS
If you would just like to run Csound on your iPad, there is an app for that called CsoundPad:
If you are a developer, Csound can be run in an iOS app that you're programming by including the Csound-for-iOS files in your Xcode project. The zip archive for these files is included in the same directory that other releases are available in, for example for version 6.05 of Csound, the files are here:
The "csound-iOS-6.05.0.zip" file contains an archive of an example project and PDF manual.
Some sample projects:
The Android files for Csound are found in a subfolder of the Csound files on SourceForge. You will find the Android files in the version folder in http://sourceforge.net/projects/csound/files/csound6/.
Two files are of interest here (in the Csound6 folder). One is a CSD player which executes Csound files on an Android device (the CSD player app is called Csound6.apk).
The other file of possible interest to is csound-android-X.XX.XX.zip (where X.XX.XX is the version number), this file contains an Android port of the Csound programming library and sample Android projects. The source code for the CSD player mentioned above, is one of the sample projects. This file should not be installed on an Android device.
To install the CsoundApp-XXX.apk on an Android device the following steps are taken:
If you want to use Csound6 on Android, have a look at chapter 12F in this manual, which describes everything in detail.
On Google's Play Store there are some apps that use Csound. Below is a small sample of such apps:
If, for any reason, you can't find the CsoundQt (formerly QuteCsound) frontend on your system after install, or if you want to install the most recent version of CsoundQt, or if you prefer another frontend altogether: see the CSOUND FRONTENDS section of this manual for further information. If you have any install problems, consider joining the Csound Mailing List to report your issues, or write a mail to one of the maintainers (see ON THIS RELEASE).
The Csound Reference Manual is an indispensable companion to Csound. It is available in various formats from the same place as the Csound installers, and it is installed with the packages for OS X and Windows. It can also be browsed online at http://csound.github.io/docs/manual/index.html. Many frontends will provide you with direct and easy access to it.
Run CsoundQt. Go into the CsoundQt menubar and choose: Examples->Getting started...-> Basics-> HelloWorld
You will see a very basic Csound file (.csd) with a lot of comments in green.
Click on the "RUN" icon in the CsoundQt control bar to start the realtime Csound engine. You should hear a 440 Hz sine wave.
You can also run the Csound engine in the terminal from within QuteCsound. Just click on "Run in Term". A console will pop up and Csound will be executed as an independent process. The result should be the same - the 440 Hz "beep".
1. Save the following code in any plain text editor as HelloWorld.csd.
<CsoundSynthesizer> <CsOptions> -odac </CsOptions> <CsInstruments> ;Example by Alex Hofmann instr 1 aSin poscil 0dbfs/4, 440 out aSin endin </CsInstruments> <CsScore> i 1 0 1 </CsScore> </CsoundSynthesizer>
2. Open the Terminal / Prompt / Console
3. Type: csound /full/path/HelloWorld.csd
where /full/path/HelloWorld.csd is the complete path to your file. You also execute this file by just typing csound then dragging the file into the terminal window and then hitting return.
You should hear a 440 Hz tone.
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