Volca FM 1 - Programming 102 - Global settings

This is part two of programming a Korg Volca FM

Part 1 is here:

• Volca FM 1 - Programming 101 - operator parameters

This parameter card shipped with your Volca:

Notice that the parameter list has two groups:

Yellow - those settings that effect the operators.

Blue - those settings that effect everything... ie Global settings

This post covers the Blue section.

Pitch rate, feedback, Osc key sync, LFO, Mod sense, Transpose.

To enter your Global settings 

press edit.

keep pressing this operator arrow till it goes past operator 6.

These settings will effect all 6 operators.

Pitch rate & level

These are the global pitch settings for the envelopes.

Remember that with FM synths, the envelopes set rate & level.

Rate: between 0-99

 0 setting produces the longest (slowest) RATE, and a 99 setting produces the fastest RATE

Level: Between 0-99

00 permits -4 octaves pitch variation.

50 is middle

99 permits +4 octaves pitch variation

Feedback

This is a feedback setting

If you look at the algo table you will see many operators that feedback on each other.

Range is 0 to 7

Increasing feedback increases harmonics.... & creates more distorted noise

Oscillator Key Sync

00=off, 01=on

When the SYNC function is ON, all oscillators are started in the same phase angle (0 degrees). 

With SYNC OFF the Oscillators aren't started in phase but they do seem to still carry over smoothly from one to another.

LFO Delay

This creates a delay between the time you press a key and the start of LFO modulation. 

A setting of 0 results in no delay &

LFO modulation will start the instant a key is pressed

A setting of 99 creates the longest delay.

LFO Amp Mod Depth

Range: 00 - 99

0 = no amplitude modulation, 

99 = maximum modulation. 

This is the depth of LFO modulation applied to amplitude

LFO Key Sync 

(00=off, 01=on)

01= LFO modulation begins at the same point in the LFO waveform when a key is pressed. 

00 =  the LFO is free running in this mode.

         LFO modulation will start at whatever phase the LFO is at.

LFO Wave 

This selects the waveform output by the LFO. 

00=Triangle

01=Saw Down

02=Saw Up

03=Square

04=Sine

05=S/Hold

Mod Sense Pitch 

Range: 00-07

This sets the depth or amt. of pitch modulation.

Pitch modulation is applied via the LFO, and results in effects such as vibrato.

It effects all the operators simultaneously.

Transpose 

Range : 00-48

Transposes pitch of  all the operators together.

This covers a ±2 octave range in semitone steps with C3 as middle

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