TDR Elliptical

  • TDR Elliptical
  • TDR Elliptical
  • TDR Elliptical
  • TDR Elliptical

TDR Elliptical specializes in controlling the stereo width at low frequencies. Elliptical filters operate on the stereo difference channel. They have important applications in disk mastering, and whenever the amount of positional information in a mix asks for control.

Contrary to traditional elliptical filters, this filter offers a continuously variable slope, minimum and linear phase modes, and a dry mix control. Various compensation options ranging from Dynamic Bump over harmonic generators to “Haas delays”, permit the operator to creatively counter-act subjective energy losses introduced by the filtering and/or stereo to mono summing.

TDR Elliptical comes with a freely resizable user interface, including a frequency analyzer that offers insight into the stereo difference at lowest registers, down to DC.

Notable Features

  • Minimum phase and linear phase operation
  • Continuously variable filter slope
  • Various filter energy compensation options, incl. Harmonic generators
  • Effective “stereo to mono” loss compensation
  • Freely resizable hardware accelerated user interface, full-screen capable

Note: Elliptical filters are not to be confused with Elliptic filter specification. The latter is also called a Causer or Zolotarev-filter, and describes a way to specify “Q” in higher order filters (much like Butterworth, Chebychev, Linkwitz-Riley or Bessel). Elliptic filters tolerate ripple both in the stopband and passband, making them largely inadequate in audio applications.

Buy TDR Elliptical

Personal/small business license. Free updates.
Prices include tax (where applicable).

Add to cart € 30.00

By purchasing a license, you are accepting the end user license agreement (EULA) and confirming that the demo edition runs fine on your system. All sales are final.

Latest version: 1.0.7 (Changelog)

Plugin Formats

OS 32bit 64bit

System requirements

VST2, VST3, Audio-Unit or AAX compatible plugin host.
Windows Vista or above, Mac OS X 10.9 or above.


User Manual

Demo Edition

The demo edition features a true analogue experience, automatic recall is blocked. No time limitation.

Windows installer
Windows (no installer)
Mac Package


How to install Tokyo Dawn Labs audio plugins

Open questions, suggestions or ideas? Please head to our support and FAQ page, fill a bug report, or have a look at our official support forum.

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This edition features additional bands, super flexible dynamics processing, equal loudness functions, smart operations and more.