FJÖL
4 voice polyphonic Phase modulation synthesizer. Using only sine waves you can get the same sounds as an FM synthesizer.

• digital ladder LPF with resonance
• usb A host
• 3 operator Phase modulation with 3 algorithms(so far)
• two endless encoders with CV input for adjusting 8 different parameters

Encoder paramaters are:

• stereo spread of voices
• filter resonance
• filter envelope decay
• glide/portamento
• Operator 2 detune
• Operator 3 detune
• Operator 1 feedback (creates saw like wave)
• Operator 2 feedback

Potentiometers are:

• Operator 2 amplitude
• Operator 2 ratio
• Operator 3 amplitude
• Operator 3 ratio
• VCA Attack
• VCA Release
• LPF frequency
• Filter envelope amplitude

Algorithms so far:
Algo 1:
OP2 -> OP1
OP3 -> OP1
Algo 2:
OP3 -> OP2 -> OP1
Algo 3:
OP3 -> OP1
OP2