DSP Loudspeaker-Room correction filter wizard; transfer function modeling and equalization by fixed-pole parallel filters. Algorithm ported to Python by Mason A. Green, based on the work of Dr. Balazs Bank: home.mit.bme.hu/~bank/parfilt
PORC now includes mixed-phase compensation.
Tag Archives: filter
Filtron ~ Variable Filter
Filtron is a 12dB state variable filter that can smoothly transition between lowpass, bandpass, and highpass. It is capable of self-oscillation with resonance levels that can reach up to 11! Filtron also features a fat sounding internal saturation algorithm and a sizzly post overdrive with two modes to choose from: cold and hot.
- 12db state variable filter
- Transition smoothly between Lowpass, Bandpass, Highpass
- Self-oscillating resonance
- Fat Internal saturation
- Post overdrive with Cold and Hot modes
- Stereo Modulation via CV
- Integrates with Gatekeeper
- Optimized for audio rate modulation
- State of the art zero delay filter design
- Internally oversampled
- 100% FREE
polyversemusic.com/products/filtron
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Aqualizer ~ Open Source Digital Equalizer
Aqualizer, a computer program that can be used in order to filter sound. In fact it is a digital equalizer. However, it is an equalizer for connoisseurs, so to say, as we researched how we could improve the existing equalizer to fit the needs of DJ’s and sound designers even better.
vst.rjprojects.net/Aqualizer/home
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Audiodope ~ Freeware Audio Editor
Audiodope is an audio editor. You can load and listen to music files of various formats such as wave, MP3, WMA, etc. You can also edit part or the whole stream with functions like copy, cut, paste, insert and delete. You may modify any part of the stream by applying audio effects and synthesize sound files.
Features:
- Sound editing functions such as copy, cut, paste, delete, insert, trim.
- Apply processes like click removal, DC offset correction, compressor, echo, fading, inversion, noise reduction, normalization, pitch scale, pitch shift, reverberation, reversing, sound 3D, tempo, true bass, volume
- Filters like, moving average, high-pass, low-pass, band-pass.
- Special effects like flanger, phaser, chorus, gargle.
- Listen to the audio file with play, pause, stop commands
- Record from any source
- Various tools like, frequency analyzer, tone generator, noise generator, DTMF synthesis, text to speech.
- Process any channel separately or both
- Apply third party VST plug-ins
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Krush ~ Bit Crushing & Downsampling Plugin
With its bit crushing and downsampling algorithms, Krush combines the crispy taste of the digital realm with the warmth of its drive stage and analog modeled resonant filters. A modulation section allows you to quickly add extra life to the sound by modulating any parameter.
The sound palette produced by Krush ranges from the dirtiest digital effects to crunchy modulated colours, with all the classic and weirdest bit-crushing effects in between.
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GClip ~ Wave-shaping Signal Clipper Plugin
Free VST audio effect plug-in download for music production, broadcasting and general audio editing.
- Clip peaks off audio with abrupt or smooth wave-shaping.
- Graph and waveform displays assist in setting the clip level according to the source material.
- Oversampling can be enabled to reduce aliasing.
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GBand ~ Band-Pass Filter
Free VST audio effect plug-in download for music production, broadcasting and general audio editing.
- Set lower and upper cut-off frequencies.
- Create filter sweeps by automating the cut-off frequencies.
- Add resonant boosts at the selected frequencies to accentuate sweeps.
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LoudMax ~ Loudness Maximizer Plugin
LoudMax is a Look-Ahead Brickwall Loudness Maximizer Plugin with a clean transparent sound. It is designed to retain the original character of the music as much as possible even at high compression levels.
Features:loudmax.blogspot.com
- True Peak Limiting (Further information for ISP below)
- Supported Samplerates: 2kHz – 384kHz
- Latency: 1.25ms (+ 6 samples with ISP)
- Look-Ahead and Attack Time: 1.25ms
- Release Time: Automatic – depending on the input signal
- No audible distortion
- Possible overdrive: 740dB
- Very low CPU usage
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Calf Studio Gear ~ Free Your Sound!
You have the need for professional and state-of-the-art audio plug-ins – but don’t have thousands of bucks to spend on it? Then we believe you will love Calf Studio Gear! Focused on high-quality sound processing and a highly usable interface Calf Studio Gear is designed to give you a professional production environment for your open source operating system. Play your SF2 sample banks, create filthy organs, fatten your sounds with phasers, delays, reverbs and other FX, process your recordings with gates, compressors, deesser and finally master your stuff with multiband dynamics – for free! Calf Studio Gear is available exclusively for LINUX-based operating systems and runs as a stand-alone effect rack connectable through Jack sound server or as plug-ins in every audio host that is able to fire up LV2 compliant devices, e.g. the highly recommended Ardour Audio Workstation
calf-studio-gear.org
github.com/calf-studio-gear
en.wikipedia.org/wiki/Calf_Studio_Gear
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IIEQ ~ Parametric 10-band Equalizer
The IIEQ is a free, fully parametric 10-band equalizer with its own, characteristic sound and low CPU consumption. The 1st and the 10th band are low and high shelf filters, respectively; all other bands are peak filters. Individual bands can be switched on and off (click on the small green buttons!). It is available for Windows (32/64 bit) and Mac (32 bit). Alternative GUIs are available for Windows 32bit only.
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SmallEQ ~ Tiny 10 Band Equalization
Sick and tired of huge GUIs taking up all screen space? Want an EQ that easily fits in your pocket but sounds just like the big guys? Then it’s time to meet SmallEQ! The world’s smallest 10-band EQ, sporting eight fully parametric bands plus one low- and one high-shelf filter on exactly 9135 square pixels. Controls from left to right: band choice, gain, frequency, width and overall gain.
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LFX-1310 ~ Multi Effector Plugin
LFX-1310 is a free plug-in multi-effector including 24 types of algorithm and 3 serial slots. This freeware is the stand-alone version of Effecting Module of Ravity-S & Ravity-R. Every algorithm realizes the very effect you have on your mind, and is fully optimized for low CPU load.
Including 24 Effectors:
- S’Filter 12 / S’Filter 24 / 3-band EQ
- Peak Compressor / RMS Compressor
- Overdrive / Distortion / Amp Distortion
- Crusher / LP Noise / Stereo Image
- Chorus / Flanger / Phaser / Auto Wah / Tremolo / Auto Pan
- Delay / Stereo Delay / Ping-pong Delay
- Gate Reverb / Room Reverb / Hall Reverb / Spring Reverb
The Audio File 