Panning Automation in Max/MSP

famedarma

Hi, I'm trying to create a subpatcher which will pan my signal from hard left to hard right over 2.5 seconds, then back to hard left over another 2.5 seconds (smoothly), whilst keeping a constant sound power. Apologies if this is a simple operation/question, I haven't been using Max for long and couldn't find anything which made this process obvious in the help files or example patches. I have attempted to use a function/line combination to send values to the pan2 and pan2S objects, as well as creating my own subpatcher manually (below), which I'm fairly sure I've made a mistake regarding maths or coding in. Again, apologies if this is something which is extremely basic. Any ideas?

Thanks.

Also, the cycle~ 440 object is just there for testing purposes; I am using sfplay~ objects in my patch, if that makes any difference.

Max Patch

Copy patch and select New From Clipboard in Max.

Wetterberg

Well, what's wrong with pan2? It does the trick more or less by the book, using cycle~, which is very efficient.

Roman Thilenius

first of all, you must use floating point:

[/ 100.], [sqrt 0.]

famedarma

Sorry, I'm not sure how to quote on this forum. Wetterberg, the object just didn't appear to be achieving any panning effect, so I assume I was using it wrong, but I was under the impression that the object asks for a signal in the left inlet, panning values in the right inlet and right and left channel audio out of the respective outlets? Or have I interpreted the comments in that subpatcher incorrectly?

Thanks for the floating point tip Roman.

Wetterberg

you did get it wrong, I think - input1: signal. input2: pan value, from -1. to +1. input3 panning 0-127, input4: slide time.

It'll tell you this if you hover over the inlets, too.

famedarma

Yeah, I tried panning from -1 to +1 and through midi, and both resulted in a hard left pan at the lowest value and a hard right pan at the highest value, with nothing in between.

Christopher Dobrian

Some things that might be of some help:MSP Tutorial 22: MIDI Panning Example 12: Linear amplitude panning Example 13: Constant power panning using square root of intensity Example 14: Constant power panning using table lookup Example 24: Abstraction for constant-intensity stereo panning Example 50: Rhythmic automated panning

Peter McCulloch

And when you need to convert one range of numbers, scale or scale~ are very helpful.

famedarma

Thanks for the help everyone, sorry to ask elementary questions. Should be able to work this out from your advice and Christopher's links. Very pleased!