[PD] Re: multi-speaker panning.. problamtic maths

alexandre r. decoupigny alex.decoupigny at gmail.com
Tue Oct 31 12:33:32 CET 2006

hey all,

first of all there was a light problem in frank's solution.. it did resolve
triggering problem, but that also created a new issue: since the
y value was stored in a [f] object and was triggered from an anything bang
of the [t] object that depended on the input of the x value, everytime you
would move only on the y axis while keeping x consant, no triggering took
place and as a result nothing happened. i got around it by inserting a
that only gets triggered when x is static.. see the attached patch : )

merci charles.. it is amazing for me to have this support and that other
people also working on this solution. as soon as i will have acces to a
proper 4 speaker set up i will put these two patches into a practical test
and see whats working well.. now here is another question charles.. is
it possible to work this thing on eight speakers ? my problem is i do not
get the maths behing your set up.. : ( i really tried, but i seem to miss
basic mathematical knowledge..



On 28/10/06, Charles Henry <czhenry at gmail.com> wrote:
> I fixed the bugs in that patch xy_to_amp.pd.....can't believe I was
> trying such a dumb approach (perhaps I should believe it).  This one
> works!
> You may want to modify it, a little, because I have set it to trigger
> calculations whenever x changes or y changes.  This could result in a
> redundant calculation, if both x and y are provided (y first, then x).
> You can just remove the [f ]  on x (left inlet), and the [t b f] on y
> (right inlet) to change this to trigger a calculation on x, only.
> Chuck
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alexandre r. decoupigny
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