MAX_EVENTS_PER_BLOCK - what does this mean and how to fix it?

davidestevens's icon

hi,

Max 5.1.2, OSX10.5.8, macbook pro

harrumph. Edited and deleted. Problem was due to stupidity on my part.

Though I do get the "MAX_EVENTS_PER_BLOCK exceeded" message from time to time, and would love to know why and how to eliminate it.

And harrumph again. I'm getting the MAX_EVENTS message when I manually trigger notes in a single vst~ synth now.

My assumption is that there's too much info to the vst~ - but I'm only sending a single note on/pitch message for each controller key press.

Que pasa?

Hans Mittendorf's icon

I got the same message using vst. Any idea how to get rid of it?

Andrew Pask's icon

Send less midievents to the vst~.

I think the limit is 256 per audio signal vector.

I'm not sure why it would trigger for less events than that - may we please have some more details?

-A

Hans Mittendorf's icon
Max Patch
Copy patch and select New From Clipboard in Max.

this is the subpatch

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

this is what drives it

Hans Mittendorf's icon

If I count it right, I am sending 36 messages to a vst object. I have five objects so I am sending 180 messages at any one time.

Dave Holton's icon

If this message is piling up in your Max window, check to see if you happen to be sending midievent messages to vst~ while audio is turned off. With audio off, you'll start getting the error messages after the 256th midievent at any speed.

Luis Marques's icon

Hi,

I was experiencing the same... the way i solve this; checking if the audio is ON, is important audio must be ON, and send a message like "midievent 144 $1 0" after the note message, to give velocity 0 to last event, it works for me.
hope that helps too.

Luis Marques

Hans Mittendorf's icon

I have sent the patch to cycling and we found out that the message actually appears when the dac is off and the metro is still running. So it is not a dangerous bug. I think they want to look into this and fix it.
Cheers

Andrew Pask's icon

There's no bug here. Just a low priority feature request.

-A

Noob4Life's icon

(could've just called it a "feature request", but way to rub it in the face with the addition of "low-priority", Andrew)