I am working with someone who is receiving data via UDP and using mrpeach to send a string, but for some reason it is sending a weird character instead of the actual string. any ideas?

here is what my patch looks like. p.s. I think my rounding method probably isn't the best way of doing it because Tuio outputs floats and apparently you can't send floats over UDP? so I converted it to an int

http://localhostr.com/files/nWn1iuX/Screen+Shot+2012-01-23+at+9.17.23+AM.jpg

That's what [packOSC] is for. It formats the message from a Pd message to an OSC message. So you need this:

[r udpSEND]
|
[packOSC]
|
[udpsend]

Also, you should probably tack an OSC address in front of that list so it can be parsed at the other end.

@lukasz said:

p.s. I think my rounding method probably isn't the best way of doing it because Tuio outputs floats and apparently you can't send floats over UDP? so I converted it to an int

Once you format it correctly, you will find that you can send floats.

getting this:

error: udpsend: no method for 'packOSC'

packOSC is not a message, it's an object !
[blabla< != [blabla]

oh ok. so this is wrong approach. I'm very confused.

I did get it to send data over TCP instead of UDP, but it seems to be converting it from an int to a decimal equivalent, used this site to figure it out: http://www.asciitable.com/

so if I send "123" as a string, it outputs "{" on the program that is receiving the TCP signal.

As dwan said, [packOSC] is an object. Take a look at the helpfile for [packOSC], and you will see how to connect it between messages and [udpsend]. If you don't use [packOSC], the messages are considered "raw data", which is why 123 is getting converted to "{". [packOSC] takes your message box and converts it into raw data, so what comes up on the other end is the same as what's in the message box.

oh ok. I have it sending correctly now. however it doesn't seem to allow me to send a list, would I use the bundle thing? the readme is really vague and I can't find anything online about it sorry I'm mr 1000 questions

in faq it says: packOSC is like sendOSC except that it outputs a list of floats instead of directly connecting to the network

can I just send a bunch of floats into the inlet and it packs them up for me and sends them? I want it to send every time any of the floats changes.

Attach a patch with what you have so far so we can see what needs to be fixed.

here it is. thanks a ton! there is some extra stuff in there, ignore that. it's mostly info coming out of TUIO client that I need to send out.

http://www.pdpatchrepo.info/hurleur/video_to_midi_with_grid.pd

It looks like part of the problem is that you could use a better understanding of how OSC works. OSC is not MIDI. You don't just send a bunch of numbers that all mean different things. With OSC, you need to provided a url-style address for those numbers to go to. For example, say you have a synth with a filter, and you want to update the parameters of that filter over OSC. You might have addresses like:

/synth/filter/cutoff
/synth/filter/q
/synth/filter/gain

In order for the parameter values to go to the right spot, you need to provide the address along with the value. So your OSC message would be something like:

/synth/filter/cutoff 600

You can send lists as well as single values, but right now you're only sending a list without an address. Whatever you guys are using to receive the OSC message should be able to get the whole list by reading it from that address.

Take another look at the [packOSC] help. Near the bottom in the green box, it says to open the [routeOSC] helpfile, and then click [connect(. You can then click on the message boxes in the [packOSC] help, which get send over [udpsend]/[udpreceive] to the [routeOSC] helpfile. Which [print] object those messages end up at are determined by [routeOSC] based on the addresses of the messages.

If you just send a list (no address) [packOSC] will report an error.

btw, there is no integer type in Pd. Everything is a float. So it should be [pack f f f f f].

I attached a modified version of your patch that will hopefully show what you were missing.

http://www.pdpatchrepo.info/hurleur/video_to_midi_with_grid-2.pd

I'm a little confused I guess. I looked at the patch and it sort of works. I am simply trying to communicate between pd and flash. we built a udp (and tcp to see if that was the problem) air app that receives tcp/udp messages. all I really need is for the message to send to the air app every time one of the number atoms update. do I even need packOSC? I was confused when I was first told to use this because I was under impression it was only for midi. I just simply want to send a string over udp/tcp

do you have any good references for tcp or udpsend? I cannot seem to ever find good resources don't want to have to keep bugging you guys. rather learn it properly.

Oh...okay. Well, I guess you may not NEED to use OSC to do that, but I have no idea how to work with raw data over UDP to make custom messages. If there's some way in Flash to receive OSC messages, then I've got to think that it would simplify your life to do it that way.

why not use sockets? With [netsend] and [netreceive] you can communicate with udp or tcp. They both allow string passing, which can have an int or float or list or hash embedded.

@sunji said:

why not use sockets? With [netsend] and [netreceive] you can communicate with udp or tcp. They both allow string passing, which can have an int or float or list or hash embedded.

wow, that was extremely easy. exactly what I was looking for. thanks!