TDR Special Filters Bundle

TDR Infrasonic offers precise control over the near-inaudible lowest frequency regions of a mix. It consists of a continuously variable slope filter, min and mixed phase modes, and mix control. It also includes a dynamic bump and a set of harmonic exciters meant to compensate for the perceived energy loss introduced by the filtering.

TDR Elliptical is a modern, state-of-the art elliptical equalizer. It’s an ideal choice whenever low frequency stereo positional information requires control. A continuously variable slope filter with min and linear phase modes, and mix option offer all necessary technical control. Advanced perceptual filtering and mono-summing compensation tricks help preserve the musical impact from input to output.

TDR Ultrasonic helps control the effects of ultrasonic build-up in wide bandwidth processing chains, i.e. whenever chains of nonlinear processors run at sample rates beyond 44.1/48kHz. A linear phase filter with a continuously variable slope, a mix control, and dynamic Ultrasonic Gate options allow to transparently block inaudible content and thereby achieve a lower total distortion in the audible spectrum, at the end of the chain.

TDR Arbiter is a remarkably flexible frequency-selective spectral balancer. What makes it special is the relative nature of the process: The effect is independent of the input signal level, making it an optimal choice for de-essing, plosive control, or overall manipulation of the frequency balance, all without affecting the original signal dynamics structure.

TDR Arbiter

TDR Arbiter is a frequency-specific spectral balancer. Acting independently of absolute level, this audio plugin makes an ideal solution for a wide range of typical audio mixing, restoration, and mastering challenges. Be it De-Essing, the attenuation of plosives, or a correction of broad frequency balance issues, the level independent nature of the algorithm smoothly achieves musically convincing results within shortest time, and maintains them through the mix.

The band of interest can be specified in the form of bell, flat top, and traditional shelving shapes. Maximal reduction range and reaction speed controls permit fine-tuning processing depth and timing. A set of harmonic generators allow to creatively compensate for any loss introduced by the filtering, extending an otherwise mostly transparent filtering process with a useful range of sonic alternatives.

The plugin comes with a modern, freely resizable full-screen capable user interface. A wideband spectral analyzer offers insight into the momentary filter magnitude and how it affects the signal from input to output.

Features

• Musically convincing spectral balance control, independent of absolute level
• Largely preserves the original dynamic structure
• Wide operational range
• Antialiased, very low distortion algorithm
• Support for bell, flat top, low and high shelf shapes
• Band specific and Wideband modes
• Band solo and Delta
• Freely resizable user interface, fullscreen capable

Learn more about TDR Arbiter.

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.

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

Learn more about TDR Elliptical. 

TDR Infrasonic

TDR Infrasonic addresses the predominantly inaudible low-frequency regions of a mix. This specialized filter operates in minimum and mixed phase mode, it features a continuously variable filter slope control, a dry mix option and an exotic range of filtering loss compensation methods: A dynamic bump mode and a set of harmonic generators help the operator to creatively compensate for any unwanted energy-loss introduced by the filtering process.

The plugin is an ideal choice when transferring material to a medium/environment of lower spectral bandwidth, such as disk mastering, audio cassettes, analogue broadcast or P.A. systems. The creative filtering compensation options further make it a valuable tool in all traditional recording, mixing, restoration, and mastering applications.

The plugin comes in a modern, freely resizable user interface. Its low frequency spectral analyzer offers exceptionally detailed insight into the lowest registers of a mix, down to DC.

Features

• Minimum phase and mixed phase operation
• Continuously variable filter slope
• Various energy compensation options incl. a Dynamic Bump mode and Harmonic generators.
• Highly precise low frequency spectrum analyzer
• Freely resizable hardware accelerated user interface, full-screen capable

Learn more about TDR Infrasonic.

TDR Ultrasonic

TDR Ultrasonic is a filter designed to control the accumulation of ultrasonic content in oversampled recording, processing, or playback chains. The idea is to prevent ultrasonics from running into nonlinear systems.

Examples of nonlinear systems are peak limiters, creative distortion devices, compressors, and other forms of modulation. Analog capture devices such as tape recorders and disc cutting systems also exhibit nonlinear behavior, as do all playback systems (albeit to a lesser degree).

The total distortion produced by a nonlinear system grows with the incoming signal bandwidth. This is true for both audible and inaudible content, and applies throughout production: While a narrow-band monophonic signal such as guitars or vocals can artistically handle huge amounts of distortion, a wideband mix can audibly fall apart with only the slightest amount of saturation.

This is because nonlinearities not only produce harmonic distortion but also intermodulation distortion, a largely non-harmonic type of distortion. This form of IMD distortion produces new partials at the sum and difference of the original partials’ frequencies. As a result, these new partials end up beyond and below the source frequencies, with the latter possibly ending up in the audible bandwidth..

TDR Ultrasonic controls the same effect, on a larger scale. It allows for losslessly reducing the amount of intermodulation distortion otherwise provoked by ultrasonic content running into nonlinear devices.

A freely resizable user interface provides intuitive access to all traditional filter parameters and a set of exotic tricks such as a dynamic ultrasonic gate, the enforcement of infinite attenuation at Nyquist, and a neat “Bypass All” function allowing for A/B testing of the effect of ultrasonic filters over whole mixes. A precise ultrasonic frequency analyzer gives detailed insight into the ultrasonic spectrum and the filtering in action.

Features

• Linear phase, continuously variable slope filtering
• Ultrasonic gate
• Support for samplerates up to 20 Mhz
• Freely resizable hardware accelerated user interface, full-screen capable

Learn more about TDR Ultrasonic.

System Requirements

Windows

• Win Vista or above
• VST2 / VST3 (32-bit / 64-bit)
• AAX (64-bit only)

Mac

• macOS 10.9 or above
• VST2, VST3, AU, AAX (64-bit only)