Radio Shack MD-1600 Understanding 1DCO and 2DCO Tones, Creating and Storing a User Tone

42-4043.fm Page 25 Tuesday, August 3, 1999 6:51 AM

SYNTH

Notes:

•You cannot use tones 160–167 (drum set tones) as base tones.

•The preset tone you use as the basis for a user tone is not changed.

•The tone locations 168–199 are not empty (before you store user tones there). They initially contain dupli- cate versions of tone numbers 128– 159. The user tone you store in any of those locations replaces the exist- ing tone. If you delete a user tone, the keyboard automatically stores the initial, duplicate tone there again.

The parameters you can change are di- vided into four groups. For the details of each parameter, see “Creating and Stor- ing a User Tone.”

•Tone Characteristic Waveform — PCM Set

•Volume Characteristic — Amp Envelope Set

•Tone Pitch — Pitch and Pitch Envelope Set

•Tone Characteristic — Attack Rate, Release Rate, Level, Touch Sensitivity, and Pan

Understanding 1DCO and 2DCO Tones

A Digital Controlled Oscillator (DCO) controls the sound output of a digital sig- nal. Some of the MD-1600’s built-in tones are simple tones (1DCO), and some are layered tones (2DCO). When you select a 2DCO tone as the basis for creating a user tone, you need to change the parameters of both tones.

When you select a layered tone, dCo1 appears on the display, indicating that this is the first tone of a layered tone.

Creating and Storing a User Tone

Follow these steps to create and store your own tone. (Refer to “Hints on Cre- ating a User Tone” on Page 27.)

25