Re: [LAD] LV2::Synth from one note to another

On Wed, 08 Oct 2014 05:38:56 +0100
Phil CM <philcm@email-addr-hidden> wrote:

> Hello
>
> I managed to make my example plugin
> <https://bitbucket.org/xaccrocheur/ksi> (based on the only LV2 synth
> tutorial <http://www.nongnu.org/ll-plugins/lv2pftci/#A_synth> that I
> could find) monophonic :)
> Now the only think that is left is a portamento function, to go from
> one note to another (/exactly/ like so-404
> <http://d00m.org/%7Esomeone/so404/> does).
>
> I guess it has to do with the
>
> void on(unsigned char key, unsigned char velocity) {
> m_key = key;
> m_period = m_rate * 4.0 / LV2::key2hz(m_key);
> m_envelope = velocity / 128.0;
> }
>
> void off(unsigned char velocity) {
> m_key = LV2::INVALID_KEY;
> }
>
> functions, I need to store the "note out" value to go from that, to a
> "note in"...
>
> Does anyone know the algorithm to implement that? That would really
> help me.
>
> Thanks
>
> PS - Excuse my poor English, I'm working on it

Hi Phil,

I have never done this but I suggest to look at the calf monosynth
code. AFAIR it has a couple of different ways to handle
successive/overlapping notes.

Another synth that comes to mind and has portamento is phasex.

Regards,
Philipp
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Received on Wed Oct 8 12:15:01 2014