Make a soundcard input available in an AES67 network. Works under Windows (DirectSound, ASIO and WASAPI), Linux (ALSA, JACK, PulseAudio and OSS) and MacOS (CoreAudio and JACK). Tested under Ubuntu 20.04 and Windows 10. Not yet tested under MacOS.
To install aes67-sender, clone the repository and install the dependencies.
git clone https://github.com/philhartung/aes67-sender.git
cd aes67-sender
npm install
Audify (audio backend used) prebuilds are available for most major platforms and Node versions. If you need to build Audify from source, see https://github.com/almogh52/audify#requirements-for-source-build.
To display the help, execute node aes67 --help:
Usage: aes67 [options]
Options:
-V, --version output the version number
-v, --verbose enable verbosity
--devices list audio devices
-d, --device <index> set audio device
-m, --mcast <address> multicast address of AES67 stream
-n, --streamname <name> name of AES67 stream
-c, --channels <number> number of channels
-a, --api <api> audio api (ALSA, OSS, PULSE, JACK, MACOS, ASIO, DS, WASAPI)
--address <address> IPv4 address of network interface
-h, --help display help for command
The software has to be executed with priviliges, because the PTP client binds to ports below 1024.
The setup is a Rasperry Pi 4 running aes67-sender with a Focusrite Scarlett 2i2 USB audio interface. First list the audio devices:
pi@raspberrypi:~/aes67-sender $ node aes67 -a alsa --devices
Selected ALSA as audio api
Index, Name, # of Channels
1 'hw:Scarlett 2i2 USB,0' 2
We see the Focusrite interface is index #1, so we can execute the following command to start aes67-sender: sudo node aes67 -a alsa -d 1 -n "Focusrite Scarlett 2i2". The device should now show up as "Focusrite Scarlett 2i2" in Dante Controller or similar software. The two inputs of the Focusrite Scarlett 2i2 are now available in the AES67 network.