starting audacity from remote desktop via x-terminal

Audacity 3 Help Forum GNU/Linux
1

Ubuntu 18.04.1 server
Audacity v2.2.1
Ubuntu distribution


I have connected an usb-sound-device to a XEON-pc running ubuntu server (no desktop).
This device is detected.

I would like to connect from remote via a X-terminal to this computer.

Packages ALSA (+ depencies) are installed, but seem not to be enough.

I tried “ssh -X ”
[works fine]
xeyes is working.

Starting “strace audacity” loads several files, but hangs after short time.

Which packages have to be installed ??

2

If you install Audacity from the Ubuntu repository it “should” also install all necessary dependencies.
On Linux, Audacity does require a working x server, GTK2 and a compatible version of “WxWidgets gtk” to be installed. The package manager should take care of these.

Please note that Audacity should NOT be run on a server with public access as it is not security hardened. It is intended to run on a local machine and any network access to the machine should be secure.

I do sometimes run Audacity remotely (on a private network) using Remina (Remote Desktop), and that works fine: https://remmina.org/

3

Thanks for reply. I am sorry for this late response.

If you install Audacity from the Ubuntu repository it “should” also install all necessary dependencies.

I fully agree.

On Linux, Audacity does require a working x server, GTK2 and a compatible version of “WxWidgets gtk” to be installed. The package manager >should take care of these.

This helps. THANKs. Now I am able to start audacity remotely.

Please note that Audacity should NOT be run on a server with public access as it is not security hardened. It is intended to run on a local >machine and any network access to the machine should be secure.

Shure. This computer is not connected to the internet.

I do sometimes run Audacity remotely (on a private network) using Remina (Remote Desktop), and that works fine: https://remmina.org/

I first tried “MobaXterm” from my Windows-desktop. But was not satisfied.
Now I use ssh -X from a Linux-desktop.

4

I’ve not tried it myself, but heard that performance with MobaXterm can be rather slow. Was that the problem?

I’m going over a wired connection between two fairly quick computers and find performance to be adequate with VNC (Remmina), and Remmina is included in the standard Ubuntu repository, so I’ve not needed to look further, though I hear that performance with NX can be very good (https://www.nomachine.com/)

X2GO is also frequently recommended. It uses caching to provide better performance over limited bandwidth than standard X forwarding (https://wiki.x2go.org/doku.php)

5

No. When starting audacity it hangs.

I’m going over a wired connection between two fairly quick computers and find performance to be adequate with VNC (Remmina), and Remmina is included in the standard Ubuntu repository, so I’ve not needed to look further, though I hear that performance with NX can be very good (> https://www.nomachine.com/> )

X2GO is also frequently recommended. It uses caching to provide better performance over limited bandwidth than standard X forwarding (> https://wiki.x2go.org/doku.php> )

I’ll need a X-Server running on my (Windows-) client.
On the “server” that has a connected sound device there is none.
What is working straight forward is to use a Linux client with a running X-Server, connecting to the server via “ssh -X” (tunneling the X-protocol), starting audacity on the server and display the graphical output of audicity on the client.

I think vnc is no option, but I will try x2go next time.

6

Due to this discussion, I decided to try NoMachine, and found it works very well.
A couple of nice features:

  • No physical display is required on the server machine.
  • No physical sound card is required on the server machine: This can be very handy for Audacity. The NX software adds a virtual audio device, which can stream audio data (Opus format) between server and client so that microphone / speakers on the client may be used with Audacity running on the server.