teqy

I have lots of separate messages going through my patch

I need to detect if a duplicate arrives, just like the 1st and 3rd message in the example above. (I am only concerned if the duplicate arrives within say 10 seconds of the initial message. So if a duplicate arrives after 10 seconds, I am not worried, it can pass.

I just wonder if there is an efficient object that can do this.

I have lots of separate messages going through my patch 

I just wonder if there is an efficient object that can do this. 

duplicate-detect-10-secs

The answer to the question "Can I do that in Max?" is usually "Yes." The answer to the question "Is there an object that does that in Max?" is occasionally "Yes," but more often is "No, but you can build your own using a few different objects."

Here's an abstraction I wrote, which I call "inlist", that stashes all numbers received in its middle inlet, and then reports '1' whenever one of those numbers comes in its left inlet. (When a number comes in the right inlet, it gets removed from the stored list; 'clear' in the left inlet removes the entire stored list.) You could probably devise something similar for symbols (perhaps with coll instead of bag), and remove each item 10 seconds after you enter it.

duplicate detect, 10 secs.