Re: SynthDefs, synthDefDir

On Sat, May 29, 2021 at 4:48 PM <clfest-f/[email protected]> wrote:
> I am having problems understanding how the SynthDescLibs gets loaded when SCLang is booted

The SynthDesc class includes code to read binary .scsyndef files and
extract relevant information from them -- most importantly the list of
control names and default values, but it also tries to build a list of
UGens (though this is not quite complete -- there's currently no way
to go from a binary SynthDef on disk to a fully functioning SynthDef
object). At startup, it does this automatically for all scsyndef files
in the default synthdef directory.

It's not really important to know how it works, just that: SynthDefs
can be packed into a binary format for the server, and if it can be
packed, then it can also be unpacked.

d = SynthDef(\test, { |freq = 440|
    Out.ar(0, SinOsc.ar(freq, 0, 0.1).dup)
});

e = d.asBytes;

// note, there is no reason for you to do this by hand ;->
// this is done internally by '.add'
// just for demo purposes here
f = SynthDesc.readFile(CollStream(e));

f[\test].controls
-> [ ControlName  P 0 freq control 440.0 ]

> how you delete scsyndefs written to disk that you don't want anymore or more generally manipulate them.

`SynthDef.synthDefDir.openOS` and delete them in the file browser.
(There is nothing special about these files -- so, no harm in just
deleting them.)

Or you could use `File.delete(path)` in SC.

hjh

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