% muxsa-al2fc(1) Version 1.0 |MUltipleXer for Slides and Audio NAME ==== **muxsa-al2fc** — convert Audacity label track to ffmpeg concat multiplexer control file. SYNOPSIS ======== | **muxsa-al2fc** _LabelTrack.txt_ > _slides.concat_ DESCRIPTION =========== **muxsa-al2fc** is part of muxsa (MUltipleXer for Slides and Audio), a collection of Linux tools for efficiently creating video files from presentation slides and background narration. For an overview on muxsa, see [/usr/share/doc/muxsa/howto.txt](/usr/share/doc/muxsa/howto.txt) and [https://git-nks-public.tik.uni-stuttgart.de/edu/muxsa](https://git-nks-public.tik.uni-stuttgart.de/edu/muxsa). **muxsa-al2fc** reads a label track exported from the **audacity**(1) audio editor and writes (to stdout) a control file, typically to be used with **muxsa-pngaac2mp4**(1), which basically calls the **ffmpeg**(1) concat multiplexer. Options ------- (none) FILES ===== *~/.muxsarc* : Per-user default configuration file. Can be used to define the environment variables listed below. ENVIRONMENT =========== **MUXSA_al2fc_SLIDE_PREFIX** : The screenshots that were created with **muxsa-kvm2png**(1) are are assumed to be in files named with this prefix, followed by a four-digit number and *.png*. Default value: "" (empty), i.e., screenshots are *0000.png*, *0001.png*, *0002.png*, ... in the current directory. BUGS ==== See: AUTHOR ====== Sebastian Kiesel SEE ALSO ======== **muxsa-kvm2png(1)**, **muxsa-pngaac2mp4(1)**