Well I missed that there is now a Pro version that came out some months ago. with saving.
So it is nice for anyone that likes a nice beat box that is simple to work with and it does only cost two monies!
The free version is also still available to test...
Vintage additive music synthesizer
pureSynth consists in four additive synthesizers plus one beat generator controlled by a five grid sequencers.
It's possible to save parameters of each synthetiser and load them individualy.
There is a view to control all parameters of all synthetisers and beatbox easily.
Each synthesizer has six oscillators to generate the fundamental note plus five harmonics: second, third, fifth, seventh and ninth. The oscillators can generating a sine wave, triangular wave, square wave and sawtooth wave.
In order to control the notes pureSynth has an envelope controller which controls the attack time, decay time, sustain time, release time and sustain level.
It's posible to clear all marked notes pressing reset button(long click).
The note range accessible from the pad is controllable dragging a finger over it vertically. From midi note 12 to 84 is possible (7 octaves).
One LFO modulator is included in each synthesizer, it modulates the signal from 0 Hz to 20 Hz.
There are two sound effects possible: distortion and delay.
Reproduces up to 12 sample beats and the volume of those beats can be controlled by separate. Those beats are: bell, block, clap, cymbal, hat, 3 difference kicks, misc, shaker and snare.
There is a view to visualize all sequences of all sequencers where you can activate/deactive each sequence by separate.
Sequencers go up until 16 sequences of 16 steps.
The main menu includes a three ways equalizer, BPM controller(from 25bpm to 200bpm), ON/OFF button and controls to record the audio output(all files are stored in pureSynth folder in sd card) which you can share with your contacts.