06 June 2007
I'd just like to announce the release of Csound 5.06. This release includes new opcodes (now amounting to just 1265...) some improvements to the API, full support for Python 2.5, and a new addition, which should interest linux users, of csLADSPA.

csLADSPA is a csd-to-LADSPA plugin toolkit. With it, plugins can be written as Csound code and be used with any LADSPA host, such as audacity, jack-rack and ardour. It seems to be a great companion to Ardour 2, for the multitracking crowd.

See in
SourceForge Downloads

Here's some quick release notes:

Bug fixes:
'system' at k-rate was just wrong
'vrandh' and 'vrandi' scaling problems
'turnoff' sometimes failed
'mod' was wrong
'tempest' OSX bug fixed
'ATScross' fixed and 'ATSadd' output made cleaner

New opcodes etc:
- partikkel, partikkelsync -- particle synthesis (the mother of all granular syntheses)
- New command line options to control messages
- eqfil -- equaliser filter
- diskgrain -- granular synthesis from disk
- pvsdiskin -- fsig streaming from disk
- pvsmorph -- pvs data interpolation (spectral morphing)
- scoreline -- score event dispatch
- porting of opcodes from CsoundAV by Gabriel Maldonado:
hvs1, hvs2, hvs3, vphaseseg, FLkeyin, FlslidBnk2, FlvslidBnk, FlvslidBnk2, inrg, outrg, lposcila, lposcilsa, lposcilsa2, tabmorph, tabmorpha, tabmorphak, FLhvsBox, tabmorphi, trandom, vtable1k, slider8table, slider16table, slider32table, slider64table, slider8tablef, slider16tablef, slider32tablef, FLmouse, FLxyin, slider64tablef, sliderKawai and an a-rate version of ctrl7.

A number of internal changes; a new API for allowing host applications to be notified whenever Csound opens a file. (And accompanying changes to the recommended interface for plugins to open files).

Frontends:
csladspa -- CSD to LADSPA plugin kit
improvements to csoundapi~ (v.1.01 now)
New-look csound5gui now works on all platforms (last release had OSX bugs)

10 November, 2006

Csound 5.04 is officially released.

This release is also extra special because it coincides with the day that represents the 50th year of life for Dr. Richard Boulanger, who as you may or may not know is not only a figurehead and prominent educator in the computer music and Csound community, but also notably the proprietor of this very website.

Happy Birthday, Dr. B! Here's to another 50 great years of life and releases of Csound!

Notable elements from the ChangeLog for Csound version 5.04:

Improvements(?)
Better diagnostics when a module fails to load
Simpler versions of pv_import and pv_export
Simpler versions of lpc_import and plc_export
More accurate tbvcf calculations
Named instruments can be deleted
Sound Font opcodes can take string or number and strset code for file

Bugs
wguide2 was wrong in a/k rate version selection

Opcodes
fsig channels available
pvsbin, pvsosc and pvsfwrite
pvspitch
vaget and vaset
mode
scale, expcurve, logcurve and gainslider
insremot, midremot, insglobal, and midglobal
harmon3 and harmon4
pgmchn and ctlchn


Other New Stuff
A load of mathematical constants predefined
Strings as arguments to UDOs supported
Coloured amplitudes available in absolute as well as dB
A virtual MIDI keyboard
Major changes in search paths

plus usual collection of minor speed-ups and various optimisations as usual.

Files are found on the Csound SourceForge Project Download Page: