JAF Model One by Jens Guell (Universal)
(11)
Released: Sep 27, 2019
Version: 1.4
Size: 12 MB
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Ranking - Music (iPhone)

Ranking - Music (iPad)

JAF Model One

Jens Guell
The MODEL ONE is a selected, fine-tuned general purpose (transistor ladder model) filter with the ability of strong self oscillation. The cutoff slope is approximately 24dB. It can be switched to low pass or high pass processing mode.

This audio unit is released for free, as a showcase for the quality and features of our unique filter collection of over 30 different filter models. The main app for the JAF Collection allows to switch between different classic filter models, including a fairly complete set of well known legendary synthesizer filters of the golden synthesizer age.

The Model One, like all our filter models, is a true stereo processing effect, which includes a special audio-rate (high frequency) modulation oscillator, that can modulate the main parameters of the filter to its extremes. The modulation oscillator is not related to the inbuilt unison oscillators, which is a complete separate, different unit.

All our models have also an inbuilt additional saturation unit for the extra bit of analog drive. This saturation unit and the oscillator section can be used without the filter module, because the filter unit can be switched to pass the incoming audio signals thru.

The available vintage warmer tube/tape saturation type for instance is an excellent choice for breathing life into any obvious digital audio material. It can be applied to entire mixes as to individual tracks and voices.

The IAA hosting app for the Model One has special MIDI connectivity, thus parameters can be automated with realtime MIDI Controllers (See MIDI implementation chart). 

The MIDI features on the audio unit depends on the fact, whether the host application will send MIDI messages to the plugin in any way with the audio processing block or not.

The audio unit can be loaded into all supporting audio unit hosts, but there are many different ones. At current state we cannot guarantee the seamless operation with all of these host applications. Please try the free MODEL ONE, before you eventually decide to purchase the commercial version "JAF Collection".

If successfully loaded into a host, all parameter automation and preset handling will be handled by these host applications.

What's new in version 1.4
1.4.
(fourth maintenance update)


A. moveable modal boxes

we have made the 'modal boxes' for the modulator, oscillator and saturator modules moveable now. the boxes will be ready to be moved freely inside the plugins effective area, if no internal control is hit. the positions are remembered for the current session only, as it would create problems while loading with different host apps due to different window sizes and handling.
there can only be one modal box opened at same time for certain reasons, but the positions are individually remembered for each type of dialog while working with the plugin. the global zoom feature affects everything, not merely individual boxes. The move feature can be globally locked with the freeze button. the freeze button will be invoked or hidden by a long press gesture. to close a box, one must tap outside the visible area of the box. the double tap with 2 fingers will reset everything to default positions.

B. zooming behavior

the model selector (exposed via [ menu ] button) will not disappear anymore by tapping outside, to support zooming while it is open. The menu button must be tapped explicitly to close the menu. this affects JAF Collection only.
if you want to zoom into open modal boxes, you must ensure to pinch inside their areas to make not disappear these automatically. a tap outside will automatically hide any open modal box. this was a requested user feature and we won't change that again.

C. improved contrast behavior

modal boxes now also support the contrast feature with their own semi-transparent background. we also improved the entire contrast to get really more visual difference. it is done by just inverting the main color in relation to the background color. this should optimize usage with extreme lighting and give entirely more contrast. this also affects all the main labels.

D: labels made bigger

all the labels of the user interface were made 1 point larger for better readability. this is maximum as it already looks quite clumsy now. ^^


E: removed Bluetooth MIDI connectivity

We decided to remove MIDI connectivity features from our releases completely. the reason is, that we always have to provide videos for the app store staff with each update release to demonstrate this iOS system feature with our distribution apps. we have not the time to endlessly capture videos of basic iOS system features, as these system functions are merely invoked by the app, not coded. it is not our code, nor do we even have influence to these mechanisms, so we do not see the logic in the demands of the app store review staff, notoriously asking for demonstrating sub features of our apps, that are in fact features of the OS. So Bluetooth MIDI cannot be established any longer with our distribution apps. it is also not a requirement for the operation of the audio units, b.t.w.

F. audio improvements and extension delayed again

some audio issues (like hot signals, loudness adjusting, additional comb effects) will come with the next update, as far there is even any interest for that.
Screenshot #1 (iPhone)
Our verdict: Good
  • + JAF Model One is a highly rated app (4.5-star).
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