Oscillators

Tempest has four oscillators for each of its six voices. Oscillators 1 and 2 are digitally controlled analog oscillators or DCOs. “Digitally controlled” does not mean the audio is digitally generated, just that the oscillators’ frequencies are under digital rather than voltage-control. The audio signal path is still completely analog. The advantage of digital control is that the tuning is exceptionally stable over a ten-octave range without having to compensate for variables like temperature.

Oscillators 3 and 4 are digital and generate various sample-based sounds, includ­ing different types of noise, samples of acoustic and electronic percussion, and single-cycle waves from the Prophet VS. The digital oscillators are converted to analog and pass through the same analog sound-shaping circuitry-filters, VCAs, etc. — as the analog oscillators.

The Oscillators section contains the most commonly used controls for Tempest’s oscillators. However, there are additional parameters accessed via the display and its related controls. When the Oscillators screen is displayed, use the ► and ◄ keys to view all the available parameters and the ▼ and ▲ keys to switch between the different oscillators (and other edit screens).

Дата добавления: 2015-08-20