On 16/07/17 02:04, Marc Joliet wrote:
Am Sonntag, 16. Juli 2017, 01:01:07 CEST schrieb Yassin Philip:
> I guess what I'm trying to say (in my poor English) is that I
> misunderstood the function of "," (comma) ; I was under the impression
> that it mixed sources in parallel, but look:
I assume this is your non-native English showing itself here, but to
be clear: "," does not mix anything, it is simply the parallel
composition operator, i.e., it places two signal paths in parallel
(note that bus() can be used for more than two signal paths).
...But... How do you define mixing if not by "putting signals in
parallel"? :) I guess it /is/ my bad English at work... I don't know
about bus() I'll have to look it up, it sounds important :/
I solved my mixing problem my studying the official mixer.dsp Faust
example, exept in the case of the additiveDrum
<http://faust.grame.fr/library.html#additivedrum> voice, that
effectively kills the 2 other voices.
I have 3 voices kick, noise, and drum (this third one is just there as
an example/help) ; If I leave the kick out, I can hear and mix my noise
and drum. But if I put it back in, then it's just the kick :(
Last commit, here is my process statement:
process = kick,drum:hgroup("mixer", par(i, 2, voice(i)) :> stereo );
Eventually it will be more like
process = kick,noise,drum:hgroup("mixer", par(i, 3, voice(i)) :> stereo );
Once I'll figure out why the kick is muting its neighbours.
And of course, each one (kick,noise,drum) works on its own. So I guess
this additiveDrum <http://faust.grame.fr/library.html#additivedrum>
Faust instrument is somewhat special (it behaves differently than osc on
the matter of gate/trigger, apparently) and I could not find ONE single
implementation on the web (!) can you believe that? I guess I can
re-create it with a couple of properly tuned oscillators (maybe even
just one, by the sound of it) and surely I will, but I'd really like to
get to the bottom of it before. Can you guess why it mutes the other voices?
Anyway,
process = noise,drum:hgroup("mixer", par(i, 2, voice(i)) :> stereo );
Works, so that's that.
> if process = a; and process = b; work, then how in heaven can process =
> a,b; produce a (quite literally) "Error in sequential composition
(A:B)?!
>
> yPhil
I'll have to have a look tomorrow, because I should be going to bed
now, but I'll grant you that the error messages of FAUST are not the
best. You kind of have to have a good picture of the flow diagram in
your head, at least that was my experience (but that is somewhat
compensated by the way you can layer things nicely in FAUST, so you
can usually work through the various sub-graphs separately, at least
that's my debugging strategy).
By subgraph you mean the graphical representations in FaustWorks? I'd
love to dig deeper into each of them, is there a way?
This is why I find that being able to see the full source code is
somewhat more important in FAUST than in other languages, because a
change in a sub-graph can break the rest of the graph, and then FAUST
"helps" you by dumping the fully expanded graph (kind of like what C++
compilers used to do with template errors), making it somewhat
difficult to figure out where exactly the error originated. (Again,
that reflects my experience from a few years ago, maybe things have
gotten better. I'll have to check out your code tomorrow, er, later
today ;) .)
Have a good night, I'm gonna sail away too, it's nearly 3AM here in
North Africa :) I committed the FaustWorks "scene" too along with all
the components, let me know if I can do more in the way of... Accessibility?
Thanks a lot for your help and patience anyway.
Phil
HTH
--
Marc Joliet
--
"People who think they know everything really annoy those of us who
know we
don't" - Bjarne Stroustrup
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