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3. Us­ing voice de­tun­ing to cre­ate an ana­logue polysynth

Computer Music - - Make Music Now -

1 Diva’s Trim­mers tab pro­vides ac­cess to each voice, al­low­ing us to mod­ify the tun­ing and other prop­er­ties. We can use this amaz­ing fea­ture to cre­ate an au­then­tic sound­ing ana­logue polysynth. Cre­ate a MIDI chan­nel, load Diva and se­lect the INIT Jupe-8 tem­plate. Start by low­er­ing the master Out­put to 50 to give us some head­room to work with.

2 Kick things off by chang­ing VCO 1’s wave­form to a pulse and drop­ping its tun­ing to 16'. It’s too bright sound­ing, so drop the fil­ter Cut­off slider to 105. This sounds smoother, but the higher notes sound too dull. Move the KYBD slider up to 35 to bring them out – this is known as fil­ter key­track­ing. To get the fil­ter mov­ing a bit, turn up the LFO 2 dial to 14.

3 The fil­ter’s mov­ing a bit too fast, so turn LFO 2’s Rate con­trol to -4. Now head back to the fil­ter and send it to the en­ve­lope by turn­ing up the Env 2 con­trol to 40. A slight en­ve­lope change will give a clas­sic ana­logue at­tack to the sound, so set the slid­ers for both en­velopes to: At­tack 25, De­cay 50, Sus­tain 40 and Re­lease 50.

4 The Vel and Kybd slid­ers scale the en­ve­lope time in re­la­tion to ve­loc­ity and MIDI note num­ber – so the harder you hit the keys and the fur­ther up the key­board you go, the quicker the en­ve­lope time be­comes. This can make the patch much more ex­pres­sive and playable. Put this into ac­tion by mov­ing the Vel slider to 70 and the KYBD slider to 35 on both en­velopes.

5 Click on the Trim­mers tab to ac­cess the tun­ing func­tions. The quick­est way to in­crease voice de­tun­ing is to turn up the De­tune Amt con­trol, so in­crease it to 50. Next, turn Voice Drift to max for some ana­logue pitch drift! Also in this sec­tion is the Voice Map Mod­u­la­tor. This is a sep­a­rate, as­sign­a­ble mod­u­la­tion con­trol for each voice. Al­ter­nate con­trols be­tween -100 and 100, then re­turn to the Main tab.

6 We can use our Voice Map Mod­u­la­tor set­tings to spread our sound through­out the stereo field. In the Am­pli­fier>>Pan area, turn the Pan Mod dial to 50 then change the as­sign­ment box to the right from LFO2 to VoiceMap. This pans each voice ei­ther left or right. Fi­nally, add ef­fects by chang­ing Ef­fect 1 to Plate1, turn it on, then ac­ti­vate Ef­fect 2 (De­lay by de­fault).

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