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Coyote Chorus is a DirectX plugin that implements high-quality chorusing and flanging effects. It uses 4 semi-independent delay line blocks to produce a very rich and full sound. Advanced audio processing algorithms produce a very clean output, free of artifacts.

Some of the unique features of the Coyote Chorus are:
  • Four stereo chorus/flange blocks
  • Sine and triangle-wave low-frequency oscillator (LFO)
  • Randomized option for the LFO, for a more natural, less mechanical sound
  • Built-in filters to allow chorus/flange of specific ranges of frequencies
  • Handles professional audio formats, including 16-bit, 24-bit and floating-point, at up to 192 KHz sampling rate
  • Supports presets
  • Clipping indicator
Coyote Chorus should be compatible with any audio application that accepts DirectX plugins. It has been tested with several of the more popular applications.

Have a look at a screen shot: .


By setting the delay parameter somewhere in the range of 10-30 ms on any of the delay lines, a chorusing (or doubling) effect is achieved. The Delay Range, LFO Type and Rate, and Output Level can be adjusted to obtain a wide variation in the effect, from a subtle addition of richness, all the way to a weird detuning effect. LFO phase inversion can also be utilized to enhance the stereo image.


Setting the delay parameter to values under about 10 ms results in a flanging effect (sweeping resonance peaks and notches). Feedback can be adjusted from -99% to +99% to control the width of the resonance peaks, allowing a wide range of sounds, from organic to metallic.

You can also "offset" the peaks and notches if desired, to cause them to fall on non-harmonically-related intervals (as analog phasers used to do).


PCRecording.com recently reviewed Coyote Chorus and had this to say: "...provides rich-sounding effects...Coyote has put together a set of effects that are easy to use and understand". Read the whole review here

Evaluating and purchasing Coyote Chorus

You can install the demo version of Coyote Chorus and run it for the purposes of evaluation. It is fully functional but it will mute the audio for a half-second every 30 seconds.

Once you have decided to purchase Coyote Chorus, payment may be made by cheque, money order or credit card. The registration fee is only $25.00 U.S. and this entitles you to technical support from Coyote's responsive support staff, as well as a free upgrade to any future version of the plugin. When you register, the full version of the plugin will be sent to you by e-mail.

If you want to quickly hear some of the capabilities of this remarkable plugin, go to the Demos page and download the sample files.

See the Downloads page for a list of sites from which the evaluation version of Coyote Chorus can be downloaded.

Problems with Coyote Chorus?

First, have a look at the list of Frequently Asked Questions. If your problem is not answered there, e-mail Coyote. Please clearly state your problem, the conditions under which it happens, and what version of Coyote Chorus you are using, along with any other info you think might be relevant.

System Requirements
  • Runs under Windows 98, NT, Windows ME, Windows 2000 or Windows XP.
  • Pentium-III, Pentium-4 or Athlon recommended, with:
  • At least 64MB of RAM, and
  • A 16- or 24-bit sound card
  • DirectX 8 or higher (available free from Microsoft)
    (DirectX 3, with Windows NT 4.0, is also suitable)
  • An audio application that supports DirectX plugins.

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Last update: Sep, 2005
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