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Hello everyone,I develop an open source instrument for android called volna. Volna means wave in Russian and some people say that it sounds suspiciously similar to a line of popular budget synths. It is a 10 voice, 2 oscillator wavetable synthesizer. The wavetable consists of 256 waveforms. The waveforms are sine, triangle, square, saw and noise interpolated and low pass filtered in order to reduce aliasing. The user interface is in landscape and it consists of vertical lines that denote note boundaries. You play a note by touching on the screen. As you move your finger up or down, you can "scan" the wavetable. By sliding your finger a little to the left or right you can make the 2 oscillators to deviate from the center frequency. Each oscillator also has an ADSR envelope. You can select the direction of and the speed of wavetable scanning for each oscillator using the menu controls. Also, the lower part of the screen is the low register (low notes), the middle part is the middle register and the upper part is the high register. You can adjust the width of the notes. You can also tune the A note between 400 and 500 Hz, and you can also select a different Tuning Equal Temperament (TET). Default is 12 (most music is written in this system), but you can also select other tunings like 19 or 24. You can also select the octave factor between 1.5 to 2.5. I have also added some scales (for now applicable to TET12 tuning only) that make playing easier. Default is chromatic, but you can select various major and minor ones, blues, pentatonic etc. You can also send midi data using midi to the application and you can use the application as a midi controller. On some phones/tablets, a form of velocity sensitivity is supported.
The instrument also has simple looping functionality (using the REC and PLAY buttons) as well as a built in delay with volume, delay time and feedback.
For more information and for prebuilt apks that you can install, visit https://github.com/bokontep/volna (https://github.com/bokontep/volna)
There is also a demo video on youtube for an older volna version 0.1 (current version is 0.8c)
I consider this version an alpha version, there are some rough edges and bugs, so I would appreciate your feedback on github.
Enjoy and peace,
bokontep