Here is a collection of free audio plugins that I use with Vegas Pro.Vegas Logo
For the rest, Vegas is born as a multi-track audio (Sonic Foundry), therefore the audio engine of Vegas is high quality yet.

MAnalyzer screenshot

MAnalyzer 
MAnalyzer is an advanced spectral analyzer and sonogram containing unique features such as smoothing, normalization, super-resolution, prefiltering and deharmonization.
https://www.meldaproduction.com/MAnalyzer


Aradaz Maximizer screenshot

ARADAZ MAXIMIZER
Simple loudness maximizer with auto release and manual input gain control.
Install into: C:\Program Files (x86)\VstPlugins.
http://www.best-free-vst.com/download.php?p=AradazMaximizer


Blue Cats Freeware screenshot

BLUE CAT’S FREEWARE
Blue Cat Audio freeware audio plug-ins: modulation effects, a guitar amp simulator, a single and dual-channel equalizer, a unique midi-controllable gain suite, as well as a professional spectrum analyzer.
Install into: C:\Program Files (x86)\VstPlugins
https://www.bluecataudio.com/Products/Bundle_FreewarePack


GSnap screenshot

GSNAP
A free autotune.
http://www.gvst.co.uk/gsnap.htm


LoudMax screenshot

LOUDMAX
LoudMax is a simple loudness maximizer.
Copy dll into: C:\Program Files\VstPlugins
http://loudmax.blogspot.it


Noise Reduction VST screenshot

NOISE REDUCTION VST
The Noise Reduction plugin is based on a spectral gate to filter out unwanted noise in the frequency domain.
Copy dll into: C:\Program Files\VstPlugins\
http://www.pcjv.de/vst-plugins/effect-plugins


ReaPlugs Reafir screenshot

ReaPlugs VST FX Suite (best one)
ReaFIR
Just install ReaFIR for the noise reduction.
https://www.reaper.fm/reaplugs/index.php


ReLife screenshot

RELIFE
ReLife bring back life to a heavy clipped audio file. Revolutionary way to recover transients and lost peaks.
Use it as complement to the internal Vegas plugin:
Clipped Peak Restoration.

Copy dll into: C:\Program Files (x86)\VstPlugins.
Here is the last free version:
ReLife_1.42.zip


RoVee VST screenshot

ROVEE
RoVee is a VoiceChanger / formant tweaking plugin that works as a VST effect.
That can convert voices to like male, female, toys or robotic.
RoVee is a cut-down version of full featured pitch-correction plugin ‘KeroVee’.
Copy dll into: C:\Program Files (x86)\VstPlugins
https://www.g200kg.com/jp/software/rovee.html


TLS maximizer screenshot

TLS MAXIMIZER
The best free voice maximiser.
Copy dll into: C:\Program Files (x86)\VstPlugins
http://www.wavosaur.com/vst/limiter-plugins.php


BROADCAST
Broadcast is a multi-band dynamics processor.
It is combined with a sub-band stereo width processing.

  • Automatic gain control
  • Gate
  • Compressor
  • Limiter
  • PDF Manual

Broadcast is different from the Multi-Band Dynamics built in Vegas plugin. It has two spacialisers: SIDE and AMB.

Copy the .dll file into: C:\Program Files (x86)\VstPlugins
http://www.vst4free.com/free_vst.php?plugin=Broadcast&id=548