ToneDeluxe amp

The ToneDeluxe is designed as a full analog tube amplifier from preamp stage to cabinet. Based on ECC83 and EL34 tubes, its analog time model design allows to reduce the delay of the signal processing and thus give a "pleasure of playing" for guitarists. It offers two independent channels : clean and high gain. The high gain chanel is versatile thanks to the DriveTone setting that cut/boost high frequency before the tone stack.

• Two channels with independent gain/volume
• ECC83 & EL34 simulation
• Based on analog time model
• Full tone stack
• Drive is volume responsive
• Two springs reverb models
• Five cabinet models

http://www.lostin70s.com

TapeDither and SpatializeDither

Airwindows has released TapeDither and SpatializeDither

TapeDither

TL;DW: TPDF variant with noise like reel-to-reel tape.

http://www.airwindows.com/tapedither/

[ no GUI ]

Harmonics

HoRNet Harmonics is a wave shaper based on the Chebyshev polynomials. Its non-linear processing lets you adjust the level of harmonics added to the signal, warming it up in different ways.
The plugin provides 10 harmonics generators of which you can set the amplitude and phase, increasing or decreasing the impact of the harmonic on the input signal. The resulting sine wave equivalent shape is displayed on the right side of the GUI.

HoRNet Harmonics provides great flexibility and lets you create interesting distortion, try for instance to remove the fundamental frequency (set the first slider to zero) and create a “broken record” sound, or use one of the provided preset to explore the different possibilities offered by the plugin.

https://www.hornetplugins.com/plugins/hornet-harmonics/

MIDI Choir

This Application will take a single-pitched audio source and transpose it in real time according to the supplied MIDI notes. My main motivation to create MIDI Choir was to be able to sing harmonies live, however the product may also be used for studio work. Below are some of its key features.
Reliable ASDF pitch tracker with voiced/unvoiced recognition

• Pitch tracking indicator
• Separate processing of voiced vs. unvoiced input, thereby preserving a natural, intelligible sound
• Voiced input will be re-pitched according to the keys pressed
• Polyphony with unlimited number of voices
• Octave, semitone and fine tunig controls
• Built-in noise gate with indicator
• Built-in soft knee limiter with color-coded LED indicator
• Built-in stereo reverb with controls for room size, damping, stereo width and dry/wet mix,
• Master volume control with output clipping indicator
• Effects may also be used without MIDI input
• Option of VST plugin or stand-alone executable

http://vicanek.de/audioprocessing/midichoir.htm

Noisebud Chokidar EQ

Chokidar EQBalancing Mastering EQ

Chokidar EQ is intended for balancing mixes in mastering. Chokidar is build from an ingenious analogue concept that would have knocked your socks of if it wasn’t for the amount of added noise. When we went through the blue prints for the analogue circuits we realized that it would be fairly easy to make a digital version that would be completely noise free (digital “cabling” is good that way) so we went ahead and created the Hi-Shelf filter at first and got stunned how good it was. The principle seemed to migrate really well into the digital world so we decided to build the whole damn thing. You can almost guess what it does by just listen to it and you might as well do that because we’re going to keep the concept a secret, at least for now.


http://www.noisebud.se?page_id=12620

Wahman is a free audio plugin, wah-wah stomp emulation, based on real scheme.

Features
- 64-bit internal processing
- input level adjustment
- mono/stereo processing

http://www.nsp-vst.ru

BlackBooster

BlackBooster is a free audio plugin for Microsoft Windows, booster stomp emulation, based on real scheme.

- 64-bit internal processing
- input level adjustment
- mono/stereo processing

www.nsp-vst.ru

modulatedFilter

modulatedFilter is a modulated filter with one LFO. Can modulate filter frequency, band width and filter mix! Extremely low resources taken!

Features:
One filter width lowpass, highpass and bandpass
Band width and filter mix
One LFO working synchronously host with start position of oscillating.
LFO can modulate filter frequency, band width and filter mix.

http://vst.saschart.com/modulatedfilter

SIR spectrum analyzer

SpectrumAnalyzer is a state-of-the-art spectrum analyzer plugin, which offers a lot of opportunities to display the spectral content of your audio material and helps you create a better mix this way. SpectrumAnalyzer comes in two editions, a free and a full version.
SpectrumAnalyzer uses modern and reliable technics to analyze your audio material. It has a FFT (Fast-Fourier-Transform) and an analog-style (parallel band-pass IIR filter) engine, both of which can run simultaneously. So you can benefit from the more accurate time resolution of the band-pass filters and the better frequency resolution of the FFT at the same time. Check out the cool intelligent peak-detection, which automatically detects resonant frequency peaks in the signal. Use the snapshot function to easily save the current state of your analyzer, so you can compare the spectral profile of your current project with other songs. SpectrumAnalyzer also includes a VU-Meter (with peak and RMS measurement) and a Stereo Correlation Meter.

http://www.siraudiotools.com/Spectrum-Analyzer.php

HY-Filter2

It’s multi mode filter effect.
There are both free/commercial version.
Free version has 2 filter modes(multi filter, reso filter),
commercial version has 7 filter modes(multi, reso, step, bank, stereo, gate).

http://hyakken.moo.jp/WordPress/product/hy-filter2/

Filterjam

Filterjam is a multi-band resonant filter delivering weird ringmod-like filtered sounds. The input signal is divided into 4 bands that are then summed or multiplied together according to the selected mode. Filterjam can be very harsh or gentle, it can add brightness or depth to synth sounds, but it can also completely mangle acoustic sources.

https://www.audiothing.net/effects/filterjam/