Sonic Visualizer, a free application designed to make exploring audio data as fun as possible, has been updated.
Sonic Visualiser will be of particular interest to musicologists, archivists, signal-processing researchers and anyone else looking for a friendly way to take a look at what lies inside the audio file.
Sonic Visualiser has powerful annotation capabilities to help [...]

MixMeister has announced MixMeister Fusion and MixMeister Studio 7.2. This release marks the first Mac versions of MixMeister.
Version 7.2 of both packages includes the following:

Native Mac OSX version is universal binary for PowerPC or Intel processors
Improved time stretching accurately matches beats with fast or slow tempos
Enhanced timeline display provides clear division of measures
Effect automation via [...]

Xoxox has released Friction, a new VST designed to synthesizer friction effects:
The friction algorithm is combined with a 2nd order mass-spring and two waveguide resonances for flexible emulative application.
Presets include squealing tires, squeaky hinges and axles, ww2 bombs, swingsets, etc.
The license is $15 (or $10 for current customers). The demo removes some parameters.
Preview friction below. [...]

 

 Friction Effects [4:52m]: Play Now | Play in Popup | Download

DSK has released another free Windows virtual instrument, DSK Virtuoso.
With DSK Virtuoso you can play combinations of 6 instruments, or play a composition up to 6 different parts, through the MIDI channels selectors.
Features:

6 Instrument layers
Midi channel assignable to each one
ADSR, level and Pan control for each layer
40 instruments in 6 categories
2 [...]

Future Audio Workshop has released Circle, a new virtual synth for Mac & PC that’s designed to be easy to use.
Features:

Visually Design Sounds - Simply move colour coded circles around the interface to start creating your own unique sounds. Preview the connections by just hovering the circle beneath a knob. Explore sound in an intuitive [...]

Algomusic has released MaxScore, a Max object which accepts messages that can create a score, add notes to it, transform them, perform it, save and load the score, as well as export the score to popular formats for professional publishable results.
Description:
MaxScore is more than a notation tool. It is an interactive performance object. MaxScore [...]

Sugar Bytes released Effectrix, a new effects plug-in it describes as an “Effect Instrument”.
It’s designed to let you break your beats, create pulsing atmospheres, psychedelic sound mutations, and crush, stretch, loop and reorganize any kind of audio material in real-time.
Effectrix is available for Mac OS X and Windows, in VST and AU plug-in formats. It [...]

Wusik has released its Wusik VM VST Manager/Organizer as a free and open source music project.
I think this may be the reason why they are having to turn this thing loose:
The idea behind WVM is very simple. You load WVM and inside it, you load your VSTs. Once you extract the presets to FXP files, [...]

Toontrack Music has released EZplayer Pro, the follow-up to their percussive MIDI engine EZplayer Free.
EZplayer pro is a VST, AU and RTAS plug in for Mac and PC with extended Map Wrapping capabilities between major drum sampler formats in the market. (FXpansion’s BFD 1&2, Digidesign’s Strike, NIs Battery, EZdrummer and Superior Drummer in addition to [...]

pfilter is a free Windows VST that creates a steppy, gated effect, but using filter cut-off instead of volume to give a wider range of possibilities. It uses a variable state filter, triggered between 2 adjustable cut-off values by a tempo-sync’d probability-based step sequencer. An LFO can modulate the filter when triggered and trigger pulse [...]

KarmaFX has released Version 2.0 of the WIndows VST KarmaFX Plugin Pack, which features reverb, delay, EQ and Filter plug-ins.
KarmaFX Plugin Pack 2.0 changes:

Added performance improvements.
Added SSE3 code path and memory optimizations to Reverb plugin.
Plugin dll’s are now compressed for faster load times.
Individual version numbers for the plugins have been removed.
The plugin pack now [...]

OutSim has updated SynthMaker, a Windows audio programming tool for creating virtual synths and effects:
There are a huge number of fixes and enhancements in the new 1.1 release of the software. We have a new de-zipper component, new trigger based FFT and iFFT components and components for acquiring system information such as MAC addresses and [...]

NUSofting has released Groove Analogizer, an audio controlled drum synthesizer, as freeware.
Similar to a vintage electronic drum tone generator (e.g. Simmons) the percussion sound is triggered by an audio input, not by a MIDI message.
Groove Analogizer features:

3 oscillators synth (loads as effect plug-in), triggered and shaped by the audio input in many ways.
Selection of left, [...]

DSK has released OranZe, a new free SynthEdit VSTi for Windows.
Features:

2 OSC, 135 waveforms*
Phase mod.
Amp. envelope
Octave selector and microtuning
2 multi-mode Filter
2 LFO’s with 5 waveforms
1 extra LFO, with waveforms
LFO Routing Matrix
Note sequencer (32 steps)
Gate Sequencer (16 steps)
Light delay effect
Midi automation
Velocity response
Preset manager
Preset and step seq. “one click generator” (randomize button)

Preview OranZe below:

 

 Oranze demo [1:19m]: Play Now | Play in Popup | Download

Rough Diamond Productions has a large collection of free VSTs for the PC, including delay, gate, ducker and compressor.
I’m on Mac - so if you give them a try, let me know what you think.