Free sw synth software for windows

VST audio synthesizer plugin Real Synth was designed to be a lo-fi synthesizer VST-PlugIn.
Main features:
- low CPU usage
- 2 bandlimited oscillators (sinus, triangle, saw, square) and noise
- FM, X-Mod, PW
- 2 LFOs (sinus, triangle, saw, square), env mode
- Mod AD envelope (OSC, FM, PW)
- filter ADSR envelope
- amplitude ADSR envelope
- portamento
- 24 dB resonance filter (lowpass, bandpass, highpass)
- 6 dB highpass filter
- MIDI learn (all parameters)
- cool sound
System requirements:
- VST-Host System

Buffer Synth 2 is like a cross between a wave-table synthesizer and GRM Tools Freeze plugin.
Tomasz asked me to do a sequel to Buffer Synth and I got a bit carried away and created a bit of a monster. Please read the manual, theres a couple of things the plugin can do that you wont be able to work out from just playing with the gui. (Its almost obvious that Tomasz did the gui for this one as well)
Note: If youre running a Matrox G550 graphics card, be sure to make sure Use Bus Mastering is turned on, otherwise the plugins gui will be unbearably slow.

The Niall Synth is a non-real-time sound synthesis program, that grew out of my Sine Wave Generator.
Its riddled with bugs though, and the codes so ridiculously convoluted that Im completely unable to fix them (If you value your sanity, I wouldnt recommend looking at the code ).

Emagic Synth Pack 1 1.0 offers an effective tool which has some features.

Major Features:

1. Synths includes: Maestro-Tempo, Reverse,BPM, PhazePitch, Phasor Audio Tools-Custom Looper, bAudio,ASIO suite (multiple output, device lister, duplex record),Full Duplex recorder and others-bSine, Babya DSP & Audio Effects.
2. Record directly from Logic 5.5 (quite nice live recording quality with EXS24) or any synths with bAudio Express's live Wave record.

Requirements: Supported hosts: Cakewalk Sonar 3 or 4 Apple Logic Emagic Logic FL Studio Cubase SX 2-3.1 MAGIX Music Studio 7-11

Sonata was designed to be a VST soft-synth for strong single-shot leads and pads.
The distinctive character of Sonata makes it adept at strings and lots of simple subtractive sounds, while also specializing in sparkly and glassy mallet sounds, deep basses, and warm and rich mid-range chromatic inventions.
Sonata application features two separate but similarly controlled generators, one for the sounds immediate attack and another for the fundamental tone. Both consist of rich harmonic spectra which are filtered to provide desired overtones. Each possesses its own exponential decay envelopes for amplitude and filter, and its own ADSR envelope.
The output from these is then fed into a little black box?a complex setup of delay devices set relatively for each note that creates a complex comb-filtering effect. This stage shapes the sound, emphasizing desired frequencies and providing richer post-filter overtones, similar to the way an instruments body will influence its sound.
There are three global effects:
- a cross delay,
- distortion,
- a reverb
Sonata produces sounds with consistent timbres in both high and low registers, allowing for better two-handed keyboard performance and ranged melodies. As a result, sometimes each note can get a little CPU-hungry.
Since Sonatas polyphony relies solely on processor power, a 2.5 GHz PC should handle about 20+ note polyphony without much else going on. 1.6GHz computers running other VST instruments should realistically expect only about 8.