Free 4-pole Filter PlugIn

downloadnowNorthPole is a free effects plug in for AudioUnit compatible applications on the Macintosh. It adds a fully programmable virtual analog synthesizer filter with resonance, envelope follower and an integrated post-filter digital delay to your audio production environment.

Please note that an older Mac VST/RTAS and a Windows VST version is available (click the links to download them). They are unsupported any may not work on recent systems. Try them at your own risk.

Quick Info:
Platforms: MacOS X PPC+Intel
Formats: Apple AudioUnit
Latest AU version: 1.1.1 (02-07-2009)
Buy + download: it’s free!
Requirements: Please read
Related: morph AU, OrangeVocoder 10AE

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This free plug in equips your AudioUnit environment with a fully programmable resonant filter. In short, you can send any of your audio tracks through this ‘virtual analog’ effects device to either create spezial effects or to simulate the behaviour of an analog 4-pole synthesizer filter.

New since v1.01: Tap tempo
Repeatedly clicking on the “Dly Time” text area directly above the delay time slider sets the delay time to the time interval between the clicks. This “tap tempo” feature comes in handy when adjusting the tempo of the delay.

New since v1.02: True stereo processing
NorthPole is now using a true stereo filtering algorithm

New since v1.03: Better support of Carbon hosts
NorthPole’s UI has now been improved to work with a larger variety of Carbon-only hosts, such as DSP Quattro.

New since v1.1: Speed and compatibility improvements
Speed improvements (approx. 2x faster than previous versions). Enhanced compatibility with MacOS X 10.5.7 and Carbon-only hosts such as Live and DSP Quattro

New since v1.11: Channel configs updated
More speed improvements. Added support for mono->mono and mono->stereo channel configurations

Specifications:

  • 24dB/Octave (4 pole)
  • variable Cutoff + Resonance
  • Lowpass/Bandpass switchable
  • Envelope Follower with adjustable sensitivity
  • Envelope attack/release times
  • Adjustable analog distortion
  • Adjustable digital delay after filter with time, mix and feedback

Disclaimer: NorthPole is freeware. You may use it at no cost. However, it is still Copyright © 1997-2009 by PROSONIQ PRODUCTS SOFTWARE GmbH. All rights reserved worldwide. We welcome you to download it from http://www.prosoniq.com and give it to anyone you like, as long as you leave the archive unchanged. NorthPole may not be included in any for- profit software compilation or bundled with any other for-profit package, except with prior written consent from PROSONIQ PRODUCTS SOFTWARE GmbH. NorthPole may be distributed freely on on-line services and by users groups, except where noted above, provided it is distributed unmodified.