Linux Sound




Usefull Commands




ALSA - Advanced Linux Sound Architecture



To direct microphone to the speakers:
The way I learned the name of the output device (sink) and input device (source) was to use these 2 commands:

Create a loopback - P.A.type system:

To apply echo cancellation:


Jack Audio

JACK Audio Connection Kit:

Working with Internal Audio Routing:



PulseAudio Preferences (paprefs) is a simple GTK based configuration dialog for the PulseAudio sound server. Please note that this program can only configure local servers, and requires that a special module module-gsettings is loaded in the sound server.


IC7300's USB Devices

The IC7300's USB interface has the following devices:


Plug-in USB Sound Cards/Devices


How to Switch Audio Device on the Fly



apt install audacity:


Alpha Audio



LV2, an acronym for LADSPA Version 2, is a set of royalty-free open standards[1] for plug-ins and matching host applications. It includes support for the synthesis and processing of digital audio and CV, events such as MIDI and OSC, and provides a free alternative to audio plug-in standards such as Virtual Studio Technology (VST) and Audio Units (AU).



Cleanfeed is multitrack, multi-party live audio and recording using only a browser.



Independent ALSA and linux audio support site - MultipleCards:

How to use Pulse to manage sound on Linux::

Understanding Linux Audio:


Configuring Sound on Linux/HW Address:

How do you set a default audio output device in Ubuntu 18.04?:

How do you switch the audio out from the speakers to a USB speaker from the command line?:

Glenn Lyons VK4PK
Ver:gnl20200130 - pre published v0.9