C. Vintage Synth

A classic “vintage” synthesizer is made up with 5 electronic assemblies:

                 2 Wave Oscillators, 1 ADSR, 1 LFO and 1 VCF (Filter)

The wave oscillators generates vibrations in the range of 30-10 000 Hz with different wave forms: sine, triangle, square, saw and pulse. Depending on the shape they have different timbres. They are mixed together in different ratios to generate a wide range of sound colors.

If the two oscillators are a little detuned they produce buzzing interference's that are so characteristic to synthesizer sounds.

A Vintage Plus Synth can produce additional waveforms and is able to change the “pulse wide” (PW) of any waveform. The more asymmetric a wave is the more acid it will sound. Try and hear.

On the monitor you can see the actual waveform (green) and the overtone spectrum (gold). The more overtones the brighter it will sound.

The LFO (Low Frequency Oscillator) produces slow waves in the range of 1-16 Hz. They are used to modulate the frequency (vibrato), amplitude (tremolo) or filter (wah-wah-effect). The modulation can increase or fade away with the time.

The ADSR (Attack, Decay, Sustain, Release) modulates the loudness of the sound during its lifetime.

The VCF (Voltage Controlled Filter) filters off a part of the overtone spectrum and makes an acid sound (square- or saw-wave) softer. It has its own ADSR to control the filter so that the sound color changes during the tone.