TDR Elliptical by Tokyo Dawn Labs filter plugin interface

TDR Elliptical: Stereo Width Filter Plugin by Tokyo Dawn Labs

Rated 4.9/5 on Plugin Boutique (27 ratings)

TDR Elliptical is a filter plugin from Tokyo Dawn Labs that controls stereo width at low frequencies by operating on the stereo difference channel. It can also work on stereo correlation.

VST3VST2AUAAXWindowsmacOS64-bit

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01Overview

TDR Elliptical is an effects filter that focuses on stereo width in the low end. Elliptical filters act on the stereo difference channel, which makes the plugin useful when the amount of positional information in a mix needs careful control. The developer positions it for disk mastering. The plugin can target either stereo difference or stereo correlation, offers minimum and linear phase modes, and includes a dry mix control.

Best for

Low-end stereo control
Disk mastering
Mix width management
Stereo-to-mono compensation

Developer: Tokyo Dawn Labs
Category: Filters
Store: Plugin Boutique

02Key features

What you get

Analysis and control of stereo difference and stereo correlation
Minimum phase and linear phase operation
Continuously variable filter slope
Multiple filter energy compensation options, including harmonic generators
Stereo-to-mono loss compensation
Resizable, hardware accelerated interface with full-screen support

03In depth

Stereo Difference and Correlation Control

Most filters treat the signal as a single channel. TDR Elliptical is built around the stereo difference channel, so it can shape how much side information sits in the bass region. Tokyo Dawn Labs notes that the plugin can selectively control either stereo difference or stereo correlation, which gives you a choice of approach depending on the material.

A continuously variable slope lets you move from gentle to steep filtering. Minimum phase and linear phase modes give you a choice between the phase behavior of a traditional analog-style response and a linear phase response.

Compensation and Interface

Filtering and stereo-to-mono summing can both reduce the perceived energy of a mix. TDR Elliptical includes several compensation options to counter this, including harmonic generators and a stereo-to-mono loss compensation feature. The developer describes these as ways to creatively offset subjective energy loss.

The interface is freely resizable and hardware accelerated, and it can run full-screen. A frequency analyzer shows stereo difference in the lowest registers, down to DC.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Tokyo Dawn Labs
Type	Plugin
Category	Filter
Formats	VST3, VST2, AU, AAX
Operating systems	Windows, macOS
Architecture	64-bit

05FAQ

Questions, answered

What is TDR Elliptical used for?

TDR Elliptical controls stereo width at low frequencies. The developer highlights disk mastering and any mix where the amount of positional information needs control.

Which formats and operating systems does TDR Elliptical support?

It is available in VST3, VST2, AU and AAX formats. It runs on Windows and macOS and is 64-bit. Windows requires Win 7 or above, and macOS requires macOS 10.9 or above.

Is TDR Elliptical an Elliptic filter?

No. The developer notes that elliptical filters are not the same as the Elliptic filter specification, which uses a different way to define Q in higher-order filters and tolerates ripple in both the stopband and passband.