line~ into *~ causes clicks

MaxMSP
Mikelib's icon

Mikelib

Hi,
I am using the line~ object to control amplitude but when activated it causes clicks in the audio. Is there anyway round this?

Thanks,Mike.

Luke Hall's icon

Luke Hall

Try inserting a [pack 0 20] or "$1 20" before the [line~]. You need to specify a ramp time (in this case 20ms) or [line~] will have no effect.

lh

Adam Jansch's icon

Adam Jansch

And the ramp can be smaller if necessary: the Max scheduler runs at 1ms intervals but MSP handles smaller intervals (it has to), so a $1 1 message box between your amplitude value and line~ can work too.

Roman Thilenius's icon

Roman Thilenius

a little ramp up before the ramp down might not be
enough to get the click away totally. there will still
be a corner. try [slide~] or [onepole~] between [line~]
and [*~].

-110

Mikelib's icon

Mikelib

Thanks for the replies. I am using the line~ object in conjunction with breakpoint function so I can draw in the panning I want. Excuse my ignorance but I cant figure out how to combine pack with the breakpoint function successfully. I have include the patch below. Hope someone can help.

Thanks,Mike.

Max Patch
Copy patch and select New From Clipboard in Max.

pgk's icon

pgk

is this what you need?

Max Patch
Copy patch and select New From Clipboard in Max.

Mikelib's icon

Mikelib

Thanks for that pgk but I seem to get a jump in the audio mid way through. The click is more obvious when using a cycle object than the train object. I'm trying to achieve a completely smooth pan transition. Any ideas how to fix this?

Thanks for your help, Mike