Danny de Graan

I have some problems with a patch I build. If I use a play~ object to play a recording in reverse it distorts a lot. If I use the file in a sample editor the file seems to be okay. I think it has to do with the way I build the patch (see below). It sounds like a digital sync problem but have no idea where the problem might be. Does someone have some ideas how to resolve this?

problems-with-play-in-reverse

I have to say the distortion appears if you record a long file...say about 3 minutes. Hope someone has a solution.

CHeck out hr.play and the other HR objects from JKC (check maxobjects.com)

The problem arises because max uses 32bit floating point numbers to pass information around. At a certain point, the 'current sample' value becomes to big to accurately depict in a 32bit number (generally around 3 minutes). The HR objects pass around two 32 bit numbers, and interprets them as 64 bit numbers, so your sample value limit is something like 4 hours or more.

The problem arises because max uses 32bit floating point numbers to pass information around.  At a certain point, the 'current sample' value becomes to big to accurately depict in a 32bit number (generally around 3 minutes).  The HR objects pass around two 32 bit numbers, and interprets them as 64 bit numbers, so your sample value limit is something like 4 hours or more.


Thanx for your reply. [hr.play~] did the trick.

Funny thing is that I had a problem with the 32bit floating point a few weeks ago but never realised this applied to the play~ object as well.

Well, this is how you learn. Thanx again.

problems with play~ in reverse