Ac3jack allows users to create a multichannel stream of AC-3 (Dolby Digital) by utilizing its JACK input ports.
AC3Jack is also compatible with the ALSA tool ac3dec -C, which makes it possible to pass the AC-3 stream out the SPDIF port on your audio interface for connection to a multichannel surround receiver. This creates an easy and seamless way to achieve full 5.1 surround mixing and monitoring of your JACK applications, all with a single digital cable without the need for hardware supporting discrete outputs and inputs.
It's important to note that AC-3 is a compressed audio format, so quality may not be as high as you might expect, but this is usually a fair trade-off for easy surround sound creation. After all, if it's good enough for film soundtracks, it must be OK.
The AC-3 encoder used in AC3Jack comes from the FFMPEG project, so it's reliable and trusted by professionals. However, users should be aware that some commercial encoders may provide better quality, though this hasn't been directly compared.
To use AC3Jack, you'll need to make sure you have the following requirements: JACK version >= 0.80.0, which offers real-time low-latency audio interconnection and delivery, and FFMPEG version >= 0.4.6. You'll also want to make sure you've installed the necessary header files for FFMPEG.
Overall, AC3Jack is a powerful tool for anyone looking to create a seamless and easy way to achieve full 5.1 surround mixing with their JACK applications. Recent updates have fixed any compiling bugs, making it even easier to use.
Version 0.1.2: N/A