iAbyssal v1.0

iAbyssal software synthesizer is based on the AtomoSynth Abyssal (check it out at the end of this post), an analog noise machine featuring a big photocell allowing the user to play in a similar fashion of a photo theremin.
Uses the frontal camera of the device for emulating a photocell so it can be played by varying the amount of light that the frontal camera receives.
Features one oscillator, one white noise generator, two low frequency oscillators, and one low / high pass filter.
Factory and User patch memory.
Photocell (frontal camera) calibration functionality for adjusting its sensitivity to different environmental light conditions.
Inter-app-audio and Audiobus support as a generator unit.

This is that App description from the user manual but strangely. it does not mention the delay, so I have to add it to the features list. a Delay with a frequency, a Feedback and Level setting knob. An On / Off switch is also available.

The two Low frequency oscillators, come with only one difference: the MOD
switch which sets different modulation targets. For LFO1 , sets the modulation target to: FREQ : Main scillator frequency. LEVEL : Volume level of the main oscillator. NOISE : White noise volume. For LFO2 , sets the modulation target to: CUTOFF : Cut-off frequency of the filter. PEAK : Filter resonance or peak level. AMP : Filtered main oscillator + noise mix.
The generated sound is top, great! Unlike a lot of others Theremin you can create a lot of variety of sounds.
Your movements can control enough parameters to have a lot of diversity of effects too.
In summary, iAbyssal works like a real Theremin. You can move your hand to shape the sound, even by changing the light of your room. My opinion is that iAbyssal is the best Theremin like App from the App Store and has no real competitor since the disappearance of Theremax from the App Store. A Killer App!, a Must Have!

• Audiobus / IAA

Review by Ed

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