Dubstep Siren

OSCILLATOR

Pitch controls the pitch of the main oscillator, range is about 50Hz to 2Khz (without modulation and steps amount set to 0)

Pitch MOD modulation applied to the pitch

Pitch Mod switch selects between LFO (square wave or triangle wave) or A/D generator (voltage rises and falls with amplitude)

STEPPED TONE GENERATOR

Steps As the steps value is increased the frequency steps lower in pitch

Steps mod Selects between square or triangle waveform from the LFO to automatically change the steps amount

ENVELOPE

Attack / Decay  Attack sets the time the voltage takes to reach its maximum value – Decay sets the time the voltage takes to drop to 0V

Repeat Once the attack and decay time have completed one cycle the A/D will automatically start again, becoming a sort of LFO (changing A/D settings changes wave‐shape)

Fire Manually starts the A/D sequence

LFO

LFO speed Sets the rate – speed of the LFO

LED flashes at the set rate

VCA 

VCA level Controls the volume of the audio output

VCA Mod Select manual for a constant level or A/D for triggered tone bursts

 

CV / Trigger in  CV‐control voltage controls the main oscillators pitch –5v trigger starts the A/D sequence

Power: 9V DC negative center