Expeditious is a collection of tools for working with songs. The're basically just wrapping sox to provide consistent results for all of our songs and an easier interface for our needs.
- Monsen: Takes in a music file, and a start point and duration, and creates a new file with the given duration, with fade up and fade down.
- Nansen: Queries a page for a JSON array of songs with the attribute "filename", and merges them all together before pushing to a remote server. This is planned to be incorporated into slingsby so that it's handled automatically.
Together these explorers keeps our music running on Monday evenings.
This repo is cloned to /home/groups/telemark/expeditious and update_top_song.py is called to
update the song as seen from slingsby. Note that there's a post-merge git hook in that repo that
chmod's all files to g+w. Remember to re-create that hook if you re-create the repo!
The hook looks like this:
#!/bin/bash
chmod -R g+w *
$ pip install -e .
$ monsen mysong.flac --start 25
The above will generate mysong_trimmed.flac, starting at 25 s into mysong, fading up, going
for 45 seconds and then fade down.
Eventually, assuming you have VirtualBox and Vagrant installed, you can just fire up a VM which has sox and the tools installed, by simply issuing:
$ vagrant up
You can ssh into the machine with either vagrant ssh or ssh to localhost at port 2222. User/pw
vagrant/Vagrant.
The local directory files is shared with the VM, at /home/vagrant/files. So just cd in there,
and use monsen to the dirty work. Upload the raw files and the resulting yaml and trimmed
versions to the Dropbox, upload the trimmed version on the website for conversion. Done.
Type monsen -h for help.
SoX.
If you're fetching a new song from somewhere, and you record with silence at the start and
beginning, you can utilize the small trim-silence script in this repo. From inside vagrant:
$ trim-silence <inputfile>
This will trim away silence at both the start and the end, and encode the result as FLAC.
Make sure you record in 44,1kHz, otherwise stuff will fail when you try to combine the songs later!