Re: [Bluemusic-users] Conventions in instruments

[Steven Y. <ste...@gm...>]

Hi Mark,

I tend to do pitch then amplitude as that's the habit I got into over
years and I guess pitch is easier to see that way, but no reason
really beyond that.  (MIDI note-ons also do key num then velocity
which is somewhat related, maybe that was an influence.) I would
assume most people who use instruments on blueShare will customize
anyways for their own system.

As for panning, Csound is unique in that always the case where panning
will be done in a mixer.  For example, I often do panning in
instrument because I am sending panning in pfields.  For that, I'm not
typing each pfield, but that is generated by performer objects I use
in python.  So the performer object has a pan location, "performs"
score and outputs the information the instrument will play, which will
include pan there from performer.  This allows me to do things like
have 12 of the same instrument but panned to different locations.  To
do this in a MIDI based environment, one would need to create 12
tracks and assign panning as there is no performer abstraction in MIDI
based environments. (At least, none I've seen).

There are cases where one might want to do panning on a mixer; for
that blue doesn't have a very clear solution.  One can create an
effect for that; I'll have to revisit the signal generation rules for
if an instrument only generates one audio sig or two, etc.  Perhaps a
standard spatialization UI option would be useful for mixer.  So you
can do 2 channel and you would get a knob or slider (with option to
customize pan code, though default to pan_gm2 from UDO archive).  Then
we can add options for more things, like quad, cube, or maybe even
ambisonics, with an option to disable/enable per instrument.  If this
sounds interesting, please log a Request for Enhancement via blue's
help menu.

Thanks for the questions!
steven


On 9/20/07, Mark Van Peteghem <Mar...@te...> wrote:
> Hi,
>
> I have some questions, not on how Blue works, but rather about
> conventions in making instruments that you intend to share with others.
>
> I had the habit to make the field p4 the amplitude and p5 the frequency
> (and/or pitch), because many opcodes like oscil and grain use the same
> order, first amplitude and then frequency, so it's easier to remember.
> But I noticed that many instruments in Blueshare do it the opposite way.
> Is there a specific reason for that?
>
> I also noticed that many instruments provide panning. But isn't it
> easier to handle panning in the mixer?
>
> Thanks for your attention,
>
> --
>   Mark
>   _________________________________________
>   When you get lemons, you make lemonade.
>   When you get hardware, you make software.
>
>
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