Simple walkie talkie software over TCP ?

[mc007ibi]

Hi,
I am getting mad about to get a simple voice over TCP/UDP.

I'd like to connect 2 PIs microphone/line-out with each other, so that you could speak to each other. Does someone knows
some tutorial or easy to use software ?

Currently I am stuck with a icecast-server setup (for radio broadcasting) but it comes with quit some trouble. I am sure somebody here got this done much easier.

thanks a lot.

[mc007ibi]

ah, this has to run permanently from command line, no GUI required or even desired

[mc007ibi]

anyone?

[mattmiller]

I've been looking for something like this for a while but only found complicated server based ones.

[PiGraham]

As a basic hack how about netcat of the output of arecord into aplay?
I guess that could work both ways.

You may be able to use the vu (sound level) option of amixer (I think) as a voice activated switch to prevent feedback. (squelch)

[mc007ibi]

gonna try netcat tomorrow and will let you know. thanks already so much!
greets

[PiGraham]

Here you go, Google (and this fine website) to the rescue:

https://www.raspberrypi.org/blog/talkie ... ie-talkie/

[mattmiller]

That's what I meant about there being no serverless projects - that one uses a Mumble server

And its written in Go which isn't something that a lot of us are familiar with

[PiGraham]

That's what I meant about there being no serverless projects - that one uses a Mumble server

And its written in Go which isn't something that a lot of us are familiar with

Why no mumble server? Can't you just install ii on one of the pis?
Presumably that would allow you add handsets to the system.

[PiGraham]

It might be worth searching for "raspberry intercom" as well.

[fruitoftheloom]

anyone?

??? http://www.linux-projects.org/rpi-video ... ce-demo-os

WebRTC solution, which should work in Raspbian Jessie with Pixel OSes chromium-browser v56: https://webrtc.org

[mattmiller]

Why no mumble server? Can't you just install ii on one of the pis?

The OP is looking for a serverless solution running server on one isn't serverless

[mc007ibi]

hey, thank you all. Also the pointer to the rpi-videoconference-demo-os tool was definitely helpful.

However, after messing with mumble-talk-pi I went for "mumble" just. It seems stable so far and its funny to abuse our "motioneye" setup for talking to people in that building.

thanks again, more links to other tools are always welcome
g

[PiGraham]

Why no mumble server? Can't you just install ii on one of the pis?

The OP is looking for a serverless solution running server on one isn't serverless

Oh, well done! But we don't know why, so I asked. It seems like a viable solution. It's not smart to rule out viable options without good reasons. Maybe "server" was taken to mean a stand-alone server PC or other extra hardware. Who knows unless the question is answered?

[mattmiller]

It seems like a viable solution. It's not smart to rule out viable options without good reason

And you were entirely right to do so as that is what OP has gone with - I was wrong #AllsWell

[mbbs1024]

My answer is probably a bit late, I just read this topic.
Why use TCP, Voice or video transmission over IP is normally transmitted over UDP because it is real-time and TCP is not suited for real-time signals.

Perhaps you can install a sofphone, and have them pointing to each other instead of pointing them to a sip server.
If you do that, the softphone takes care of all voice transmission issues

[mc007ibi]

Why use TCP, Voice or video transmission over IP is normally transmitted over UDP because it is real-time and TCP is not suited for real-time signals.

yeah, that's right. thanks!

[Ronaldlees]

For a really nice, latency resistant UDP command line audio link, see:

http://www.pogo.org.uk/~mark/trx/

I use it on my Pi2, and it works well for me.

[piglet]

For a really nice, latency resistant UDP command line audio link, see:

http://www.pogo.org.uk/~mark/trx/

I use it on my Pi2, and it works well for me.

Interesting. Do you have a write-up? I've been looking for something we can use around the house

[Ronaldlees]

For a really nice, latency resistant UDP command line audio link, see:

http://www.pogo.org.uk/~mark/trx/

I use it on my Pi2, and it works well for me.

Interesting. Do you have a write-up? I've been looking for something we can use around the house

Hi,
I didn't do a very detailed writeup, but only as part of another blog article related to ham radio. But, it's probably enough to get you started:

https://amateurmiscellany.wordpress.com ... nalog-rig/

The streaming software (i.e. a "potential" walkie talkie foundation) is towards the bottom of the page.