This is the scenario: I have a patch with some subpatches. I use a block size of [block~ 128] in one subpatch, but the default one in the rest. Then I do the following:

• I play the sound processed in one subpatch with the default block size, it works correctly
• I play the processed in one subpatch with the block size of 128, it works correctly
• I play again the file with the default one, and it is totally distorted

Does any have any idea about this? Thank you in advance

Can you share the patch so we can try it out?

I'm sorry, but I can't do that. But I can give you more details
I have several readsf~ (one in every subpatch), and all throw to the same dac~, but not at the same time. The dac~ is in the main patch.

@justAndrea Hello Andrea....... from http://puredata.info/docs/manuals/pd/x2.htm chapter 2.4.5..........

"Don't try to throw~ and catch~ or send~ and receive~ between windows with different block sizes. The only re-blocking mechanisms which are well tested are inlet~ and outlet~."

David.

Hello @whale-av. Thanks for your answer. Actually I'm not using throw~ and catch~, I'm just using outlet~. I didn't explain it well..

@whale-av if he used [throw~]/[catch~] and the like he would get error messages and no sound would be produced by those patches, if I'm not mistaken.
Only [inlet]/[outlet] work with different block sizes than the default one.
@justAndrea I'm afraid hints are not enough, at least not for anything I can think of. You could share part of your patch. It will be just to give you some help.

@alexandros , thank you very much for offering your help. Finally it was a problem in the external that I was writing, not in the patch itself. So...bad question!