How to stream audio over ssh?

[jimallyn]

I am looking for a way to stream audio from my Raspberry Pi to my Mint desktop computer over ssh. I have found a number of web sites that show how to stream audio coming into the RPi from an external source, but nothing that shows how to stream all audio played on the RPi. Most of the websites use a command line along this line:

Code: Select all

arecord -f cd -t raw | oggenc - -r | ssh <user>@<remotehost> mplayer -

or this:

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arecord -D plughw:1,0 -f dat | ssh -C user@192.168.1.21 aplay -f dat 

Again, both of these are intended to stream audio from an external source, like a microphone. There must be something similar to stream all the audio that is played on the RPi, but I don't know what it is. Some kind of redirection or pipeline of /dev/audio or something? Anybody got suggestions?

[xenopeek]

PulseAudio is your sound server. It is network enabled and can forward sound from your machine to another machine, to be played there. If you Google "pulseaudio over ssh" you'll find several hits on how to set that up. Some will describe a way to forward sound without encrypting it (as addition to X remote over SSH), but there are a few hits describing an alternative that would encrypt the sound also (if that is what you need). I haven't done anything with this myself, but PulseAudio is the direction you should be looking in I think.

[jimallyn]

PulseAudio isn't installed by default on the RPi, but it is available in the repositories. I Googled as you suggested and found a couple of interesting pages, and will try their suggestions later.