Forums > MaxMSP

voip-like phone using Max

May 1, 2014 | 8:05 pm

Hi all,

I’ve searched the forums to no avail.

I’m trying to create a patch that is like a voip phone but within max. i.e. there is a phone plugged into one computer and another phone plugged into a second computer and folk can talk to eachother over the network.

I have no difficulty sending audio from one computer to another using, etc. but when I try to send it in both directions I’m getting a feedback loop. I have selected different ports to send the audio from each computer.

And this is over a LAN so no connection to the web is necessary.

and i’m using headphones with mic like the ones that come with the iphone.

Hopefully, someone has done this before?



  • This topic was modified 10 months by  dodgeroo.
  • This topic was modified 10 months by  dodgeroo.
May 2, 2014 | 5:31 am

Hard to say without looking at your patch.

May 2, 2014 | 2:58 pm

below is the patch. there is one of these on each computer with the changing of the send and receive ports to match. it’s a bit messy as it’s a work in progress.

my main question is… is it possible to both send and receive audio between computers on a LAN?



– Pasted Max Patch, click to expand. –
May 3, 2014 | 11:27 am


I found solution. There must have been an audio feedback loop internally somewhere in my previous patch? A lesson in keeping patches tidy ;)

Attached are simple patches that can be used to send and receive audio over a network.

I’m surprised I couldn’t find this on the forums. Maybe I wasn’t looking in the right place?

Anyway, I think this could be useful for a variety of applications.



May 3, 2014 | 12:51 pm

I am still getting feedback?

attached are some updated patches that work for my phone application but it would be great to have the ability to send and receive audio over a LAN without feedback within Max. maybe something to do with the ‘localhost’. I’m not versed enough in network stuff to troubleshoot the issue.



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