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Product description

DSEQ is a dynamic processor working in the frequency domain.DSEQ is removing digital harshness on the fly thanks to self-adjusting frequency bands.

DSEQ can be used in all mix and master situations:

DSEQ works fully in the frequency domain, providing very high frequency selectivity thanks to self-adjusting dynamic equalizers. DSEQ does its job with highest transparency even pushed hard. This avoids distortion, phasing and artefacts even with very critical sound material. And DSEQ offers several quality modes taming even singular frequencies.

On top DSEQ provides a very easy to use interface. With just a few parameters (threshold, selectivity and attack/release) a broad range of applications can be covered. Even the initial parameter set could make your mix more transparent. Just pick the threshold parameter and lower it step by step. From there you can start focusing on specific frequency regions by using the pre-filters.

DSEQ comes with AB-LM Lite providing perceptual loudness matching.

DSEQ supports custom threshold which turns DSEQ into a smart multiband compressor.

DSEQ V2.0 introduces the smart AI function and a corresponding GUI page to setup DSEQ automatically depending on the input material.


Interactive EQ display

The main EQ/spectrum display which lets you monitor the delta spectrum (input minus output) spectrum and adjust the pre-filter response curve.

Dynamic control

DSEQ analyses the input or side chain signal in the frequency domain and triggers then the dynamic equalizers depending on the threshold. This is done for each singular frequency that is available during the Fast Fourier Transformation (FFT).
The frequency selectivity determines whether and to what extent neighbouring frequencies are also affected. Attack and Release control how quickly the dynamic equalizers react.

The slope parameter lets you turn the spectrum of the input or side chain signal before going into the dynamic equalizers. With a positive slope value the dynamic equalizers with higher frequencies trigger earlier, with lower frequencies later. Just set the slope value to +3dB if you work witch pink noise mixing/mastering method.

GR strength controls the gain reduction like the ratio in a compressor.

GR max limits the overall gain reduction to a certain value ot avoid over compression and artifacts.

Pre-Filter control

DSEQ works normally in the entire frequency range. You can limit the effect to certain frequency regions (e.g. highs for de-essing). Therefore, the signal for the dynamic equalizers can be processed using pre-filters. DSEQ offers various filter types such as cut, peak and shelf filters. The filter sensitivity determines how strongly the signal is recognized by the dynamic equalizers.

Custom threshold

Custom threshold turns DSEQ into a flexible and highly accurate mulitband compressor. Use any audio file or DAW input as custum threshold to align threshold of dynamic EQs to your audio material.

Smart A.I.

DSEQ V2 makes it even easier to tam digital harshness thanks to its smart AI function. Set up DSEQ as normal, selected desired AI learn mode, press play to start the DAW and then the learn button. DSEQ calculates the optimal slope and threshold parameter within seconds.



Signal monitoring modes (2.1):


Introduction (2.0):


Custom Threshold (1.5):


Introduction (1.x):

Demo version versus Registered version

In demo mode (without registering) the plugin mutes audio every 90 seconds for a short period. This could be circumvented by clicking on the "TBProAudio" logo within 90 seconds.


Please download DSEQ here.


After installation product is in demo mode and needs to be activated. Please follow the steps described in the manual or here.


Please order DSEQ activation key here.







Estrada Studio (English version)

Known issues



- UPDATE: OS filter > 44kHz optimized (less pre-ringing)

- UPDATE: enable mono + SC channel config for stereo plugin
- UPDATE: bigger icons for preset buttons

- UPDATE: change in registration process

- UPDATE: moved registered name from main GUI to about box

- NEW: input spectrum display
- NEW: custom threshold display
- UPDATE: smart AI custom threshold improved
- FIX: small GUI issues

- NEW: filter band listen mode (selected pre-filter)
- NEW: piano preset
- UPDATE: narrow-band sweeping mode (global listening mode): change filter Q with mouse up/down

- NEW: smart AI GUI
- NEW: AI presets
- NEW: Ultra 3 and Eco Eco mode
- NEW: GUI scale up to 300%

- FIX: AAX DAW bypass audio glitches

- FIX: randomly lose custom threshold after saving

- FIX: random AU/Ableton crash while changing OSR

- FIX: VST3 Cubase read correct bypass state

- FIX: session data size reduced

- NEW: automatic calculation of slope parameter (from current slope value and optional custom threshold)
- UPDATE: presets to balance the mix
- FIX: no meter reset after offline render

- UPDATE: User preset saves/loads custom threshold
- UPDATE: A/B parameter switch supports second custom threshold
- UPDATE: click on preset/custom threshold name or icon opens preset/custom threshold menu
- UPDATE: improved preset/custom threshold name shortening
- UPDATE: tooltip displays long preset/custom threshold name
- FIX: VST3 crash Adobe Audition 2020

- UPDATE: Import/Export/Favorites custom threshold data

- NEW: custom threshold (see manual)
- UPDATE: finer control of GR strength
- UPDATE: larger controls for GR Strength and GR max
- UPDATE: small GUI fixes

- UPDATE: improve MAC GUI performance
- UPDATE: improve WIN GUI performance
- FIX: DP graphics

- UPDATE: bypass skips main gain
- UPDATE: decreased main gain control sensitivity
- FIX: Ableton offline render fix for backward compatibility

- NEW: continuous spectrum slope calculation
- UPDATE: changed quality/OS calibration from DIRAC back to white noise (V1.1.0)
- UPDATE: response curve drawing optimized

- UPDATE: new Presets (master, e-bass, vocals, sax ...)
- UPDATE: small DSP code improvements
- FIX: GFX glitch when using pre-filter with high slope/q setting

- NEW: quality mode Ultra 2
- NEW: Link quality to srate
- NEW: offline quality/OS modes (experimental, see manual)
- NEW: more pre-filter types with slope setting
- UPDATE: new presets (EGuitar, Vocals)
- UPDATE: improved calibration of quality/OS modes

- NEW: Max GR limit
- NEW: Parameter A/B
- FIX: improved Ableton compatibility

- FIX: GR spectrum spikes if AB-LM is active
- FIX: Ableton AU PDC crash
- FIX: disappearing active pre-filter with freq. 50Hz

- FIX: possible crash after plugin removal and adding again

- FIX: save default preset while playing
- FIX: bypass Studio One 4.6, 64bit processing

- FIX: internal buffer collision (e.g. Studio One 4.6, 64bit processing)
- UPDATE: new presets

- FIX: Mix dry/wet (OS) improved

- FIX: CPU spikes (show/hide GUI) reduced
- FIX: OSX GFX glitches

- FIX: OS/SC bug

- FIX: GUI update on Mac OSX improved
- UPDATE: GR factor from 0.1x to 10x
- UPDATE: manual, revised description of over-sampling

- FIX: wrong pre-filter monitor setting during OS

- Public release