Working on synth envelope

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Fixed voicing

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Fixed envelope init

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Added toggle

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Getting there

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Fixed envelopes, need to fix defaults

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Defaults a little better

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Added speed control to envelope

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Fixed initial value

Signed-off-by: Damien Zammit <damien@zamaudio.com>
DPF: Fix small warnings
Merge branch 'master' of github.com:zamaudio/zam-plugins-DPF
Update DPF stuff