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Voxengo Analogflux Suite HELP

Voxengo Analogflux Suite Screenshot


Preset management
Knob control
TapeBus plug-in controls
Delay plug-in controls
Insert plug-in controls
Impulse plug-in controls
Chorus plug-in controls
Troubleshooting tips and additional information


Analogflux is a suite of PC VST audio processing plug-ins designed to deliver the sounds of the analog days. In the core of these processors we have extensively used convolution processing to match the response of the original analog gear. This suite consists of TapeBus, Delay, Impulse, Insert and Chorus plug-ins.

The TapeBus plug-in recreates characteristic elements of the reel-to-reel tape sound. This includes saturation, modulation noise and smearing effects which are known for the 'analog' feel they bring to any audio recording. This plug-in also applies a selected impulse response taken by us from the existing tape machine.

The Delay plug-in models the sound of an old analog delay module. Beside this, it offers the user modern two-tap delay controls, including separate pre-delay and feedback delay controls which together allow you to build ping-pong kinds of echo soundscapes. The plug-in also contains a cross-feedback path between the channels, which enables you to create some even more complex echo structures. Our delay module also offers you a BPM control with the ability to sync it to the host's tempo changes. And most importantly, you can choose the response of the delay module: from moderately bright to endlessly dark, taken from the real analog delay module.

The Insert plug-in is our attempt to create a simple processor which could be inserted on any track to make it sound less digitally-focused and thus make it sound warmer. Beside the severe phase smearing this plug-in introduces it also allows you to apply modulation noise of selectable strength. This processor while sounding subtle at the first glance can do miracles at taming overly sharp transients.

The Impulse plug-in is a greatly simplified version of our Pristine Space 8-channel convolution processor. The Impulse plug-in is a two-channel convolution processor designed to be used on channel inserts and reverb sends. It allows you to load impulses stored in WAV and AIFF audio files, and also offers you a selection of built-in impulses including vintage spring reverb.

The Chorus plug-in offers you a stereo chorus plug-in which features 8 operators (4 for each output channel), creating together a really huge and convincing chorus applicable to vocals, guitars and synth instruments.

Analogflux Suite features:

  • Tape simulation plug-in
  • Analog delay plug-in
  • Convolution processor plug-in
  • Analog insert plug-in
  • Chorus plug-in
  • Factory presets
  • "A-to-B" comparisons
  • Mono-to-Stereo, Stereo-to-Stereo processing
  • All sample rates supported
  • 64-bit internal precision
  • Native assembler DSP code

  • Preset management

    Top buttons

    You can use the "Preset..." menu button to perform basic FXP/FXB preset/bank management tasks. The "Set as default" menu option of the "Presets..." menu allows you to assign the currently loaded program to the default preset program. This default program will be loaded whenever you enable a new instance of the plug-in or reset the current program. You can use the "Reset default" option to restore the default factory preset.

    By pressing the "A|B" button, you can exchange the current and shadow (or, alternatively, "A" and "B") programs. The "Copy" button copies the current program to a shadow one.

    Since only a single shadow program is used for the whole program bank, you can use "A|B" button to copy programs. To do so, you first need to switch to a program you want to copy and press the "Copy" button. Next, switch to a program where you want to put the first program and press the "A|B" button.

    The "Reset" button can be used to reset the current program. All parameters will return to their default states.

    Knob control

    Knob control

    To change a knob control's value, drag it with the left mouse button and move it up or down. For finer adjustment, press the right mouse button while dragging. Double-clicking on the knob with the left mouse button will return the knob to its default position.

    TapeBus plug-in controls

    TapeBus plug-in screenshot

    Rec Gain - record gain (drive). The higher this parameter is the more saturation (distortion) is happening.

    Saturate - a kind of wet/dry mix control. Affects saturated part of the signal only since standard wet/dry mixing is not possible as tape response introduces too many phase adjustments. This parameter can be also perceived as a 'saturation softening' parameter.

    Lows - low frequency peaking filter boost (pre-saturation), Highs - additional high frequency shelving boost (pre-saturation). These two paramters resemble a simple equalizer placed before saturation stage.

    Out - output gain of the plug-in.

    Curve - saturation curvature. The higher the value, the steeper the saturation curve, and thus the more 'screaming' the saturation is. This parameter affects saturation transfer function and thus harmonic content of the distortion, especially on moderate distortion levels.

    EM Freq/Gain - center frequency and gain for the pre-emphasis high-shelf filter. The higher the Gain value, the earlier the higher frequencies get affected by saturation. The pre-emphasis filter preserves lower frequencies from distorting at the expense of adding intermodulation noise and oversquashing the higher frequencies.

    Plug-in also features a simple distortion meter which is located inbetween the Out and Curve controls.

    You may use the global switch "Tape Off" on the info screen (press the "?" button) to disable tape impulse coloration stage completely. This will disable selection of the Tape type and will eliminate latency in the plug-in. A global setting is one that affects all plug-in instances in all audio host applications. Global setting takes effect only after the plug-in instance is reloaded or audio host application is restarted.

    Delay plug-in controls

    Delay plug-in screenshot

    This is a stereo delay plug-in with smooth delay length changing. The most important feature of this delay is the use of convolution processing in its signal path, which applies an impulse response recorded from a real analog delay.

    BPM - beats per minute.

    BPM Sync - enable BPM sync to the host's tempo.

    BPM Mult - BPM value multiplier.

    Rolloff - selects which analog delay impulse response to use. Works like a low-pass filter selector.

    Dry Gain - amount of the dry signal to mix into the output.

    Delay L/R - initial delay length modifier.

    Length L/R - feedback delay length modifier.

    Feed L/R - feedback (cross-feedback) amount.

    Gain L/R - output gain for the delay channel.

    The Delay, Length, Feedback, Feed and Gain controls for the channels can be linked by holding the SHIFT (absolute sync) and ALT (relative sync) keys.

    NOTE: This plug-in has limitation on the feedback delay time: it cannot be lower than some internal pre-set value. This means that if you start using too 'quick' delays, you may not get what you want. The same applies to very long feedback delays: this plug-in allows you to have up to 2-second feedback delays only.

    Insert plug-in controls

    Insert plug-in screenshot

    This plug-in was designed to transform audio stream and make it sound much less focused across the whole spectrum. Generally this may give a somewhat inferior sound, but in some cases it can give a smoothness not otherwise achievable. The plug-in also applies switchable modulation noise which is usually available when working with any tape machine.

    ModNoise - amount of modulation noise.

    F.Mono - forces processing of the left channel only.

    Impulse plug-in controls

    Impulse plug-in screenshot

    The impulse plug-in was designed to be used as a send FX or as an insert FX when one needs a 100% wet output (e.g. when using pre-amp or speaker cabinet impulses, or reverb impulses on sends). Impulse plug-in is bundled with internal impulses. Use the 'File' button to load any external WAV or AIFF impulse. When the 'X' button is pressed, the plug-in unloads any external impulse and loads one of the internal impulses. You may press the bar with impulse's name to bring the impulse selection list.

    The status line shows the parameters of the loaded impulse: number of channels, sampling frequency ("*" if impulse's sample rate differs from the host sample rate), bit-depth and length in seconds.

    The 'Latency' label shows the amount of latency reported to the host by the plug-in. You can adjust the latency of the plug-in by pressing the '?' button. Please note that it can be benefical to use higher latency whenever possible as it allows plug-in to lower the CPU usage.

    In->Mono - forces mixing of the incoming audio to mono.

    F.Mono - forces processing of the left channel only.

    Bypass - enables processing stage bypass mode.

    Predelay - amount of delay to insert to the output (useful for reverb sends).

    Out - output gain control.

    Chorus plug-in controls

    Chorus plug-in screenshot

    Delay - how much chorus signal is delayed.

    Freq - frequency of chorus modulation.

    Depth - depth of chorus modulation.

    Wet - wet (chorus) signal gain.

    Wet Pan - panning of the wet (chorus) signal.

    Dry - dry (original) signal gain.

    Mode button selects chorus algorithm. The 'Clean' mode offers you a classic clean chorus sound. 'Vintage' mode offers you a chorus sound with modulation noise applied to each chorus operator (voice). This mode consumes more CPU power but at the same time provides a more pleasant chorus sound with an old vintage color to it.

    In->Mono - forces mixing of the incoming audio to mono.

    F.Mono - forces processing of the left channel only.

    Quality button is used to switch between the normal and the high-quality processing modes. The high-quality processing mode internally uses a two-times higher sample rate, performing 2x oversampling. The high quality mode uses about two times more CPU resources. The "Auto" quality mode disables oversampling in the normal real-time plug-in operation and turns oversampling on during the offline audio bouncing. Please note that the "Auto" mode may not work properly in all hosts (if the host does not report back when it enters the offline processing mode).

    NOTE: when a mono signal is being processed (or when the F.Mono switch is enabled), the plug-in creates an 8-operator mono chorus with a very 'thick' sound.

    NOTE: The Wet and Dry knobs can be synchronized with the ALT.


    Pressing this button will display the plug-in's info screen. This screen shows copyright and registration information, and contains the "Help" button which opens the bundled HTML help file you are reading now.

    Troubleshooting tips and additional information

    Is the Analogflux reverb more efficient than Pristine Space?

    Analogflux Impulse should be a little more efficient than PS (because it does not feature Dry knob which needs additional math multiplication and addition), but not much more efficient.

    How would you compare the TapeBus plug-in to Warmifier and Lampthruster? Is TapeBus a little more 'in your face'?

    TapeBus is completely different plug-in in comparison to those two, so no direct comparison can be made. Indeed, TapeBus may give you 'in your face' kind of sound.

    Suppose I load up a 96KHz impulse into The AnalogFlux Impulse engine. And suppose the actual track is at 44.1KHz? Will the engine resample automatically to 44.1 from 96, or not?

    Yes, the impulse will be resampled. But bear in mind that resampling applies low-pass filtering and so frequencies between 20-22kHz will be attenuated increasingly to minimize aliasing effects. So it may be a better solution to resample impulses in a dedicated sample rate converter with a good sonic performance.

    Special thanks go to Michael Kingston (for encouraging us to make the TapeBus plug-in), Fritz Hildebrandt (for presets), Niklas Silen (for presets), Daniel JS Lewis (for presets), Vitaly Zolotarev@Dawn Raid Studio-New Zealand (for presets), Vladimir N. Matveyeff (for Delay plug-in's graphics), Cedric Ricci@http://www.riccicedricdesign.com (for TapeBus plug-in's graphics), Spocksone2000@http://www.cksde.com (for Delay plug-in impulses), Aaron Carey (for additional impulses) and to betatesters participated in testing this plug-in suite.

    Happy Mixing!

    Copyright © 2004-2006 Aleksey Vaneev

    VST is a trademark of Steinberg Media Technologies GmbH.
    All other trademarks belong to their respective owners.