Hunting down qpaeq graphic equalizer preset files

Question

I'm using pulseEQ on Ubuntu 20.04. I get qpaeq up and running and the GUI isn't great. I have sliders with no axis values. I download my equalizer preset from github/autoEQ, but there's no good way for me to import it. I could do it manually, but even then I can't see what gain value the slider is making, there's no sense of scale at all.

I was hoping, then, that when I save a preset, it would make a file in plain text, which I could then open and enter my preset that way. But I haven't been able to find it.

I look for qpaeq files nearby to the binary:

simon@simon-MacBookPro:~$ which qpaeq
/usr/bin/qpaeq
simon@simon-MacBookPro:~$ ls /usr/share | grep qpaeq
simon@simon-MacBookPro:~$ ls /usr/* | grep qpaeq
qpaeq

The only thing with the name qpaeq in it in /usr is the binary itself. I don't think there are any related files then in /usr

Any clues in /etc ?

simon@simon-MacBookPro:~$ ls /etc | grep qpaeq
simon@simon-MacBookPro:~$ ls /etc | grep pulseaudio
simon@simon-MacBookPro:~$ ls /etc | grep pulse
pulse
simon@simon-MacBookPro:~$ ls /etc/pulse
client.conf  client.conf.d  daemon.conf  default.pa  system.pa
simon@simon-MacBookPro:~$ ls /etc/pulse/client.conf.d
01-enable-autospawn.conf
simon@simon-MacBookPro:~$ cat /etc/pulse/client.conf.d/01-enable-autospawn.conf 
cat: /etc/pulse/client.conf.d/01-enable-autospawn.conf: No such file or directory

Looking through the .conf and .pa files, they look like they came with the package and like nothing special.

So I created a preset with a unique name and then went to root and did

simon@simon-MacBookPro:/$ sudo find . -name presetFindMe
find: ‘./run/user/1000/doc’: Permission denied
find: ‘./run/user/1000/gvfs’: Permission denied
find: ‘./proc/68262/task/68262/net’: Invalid argument
find: ‘./proc/68262/net’: Invalid argument

and it came up empty.

I found the pid of qpaeq and then looked at it's open files in /proc, and this is what I get:

simon@simon-MacBookPro:~$ ls -l /proc/54513/fd
total 0
lrwx------ 1 simon simon 64 Dec  2 11:10 0 -> /dev/pts/1
lrwx------ 1 simon simon 64 Dec  2 11:10 1 -> /dev/pts/1
lrwx------ 1 simon simon 64 Dec  2 11:10 10 -> 'socket:[111940]'
lrwx------ 1 simon simon 64 Dec  2 11:10 11 -> 'anon_inode:[eventfd]'
lr-x------ 1 simon simon 64 Dec  2 11:10 12 -> anon_inode:inotify
lrwx------ 1 simon simon 64 Dec  2 11:10 13 -> 'anon_inode:[eventfd]'
lrwx------ 1 simon simon 64 Dec  2 11:10 14 -> 'socket:[110903]'
lrwx------ 1 simon simon 64 Dec  2 11:10 15 -> 'socket:[114117]'
lrwx------ 1 simon simon 64 Dec  2 11:10 16 -> 'socket:[110904]'
lrwx------ 1 simon simon 64 Dec  2 11:10 17 -> 'socket:[110905]'
lr-x------ 1 simon simon 64 Dec  2 11:10 18 -> /usr/share/icons/Yaru/icon-theme.cache
lr-x------ 1 simon simon 64 Dec  2 11:10 19 -> /usr/share/icons/Humanity/icon-theme.cache
lrwx------ 1 simon simon 64 Dec  2 11:10 2 -> /dev/pts/1
lr-x------ 1 simon simon 64 Dec  2 11:10 20 -> /usr/share/icons/Adwaita/icon-theme.cache
lr-x------ 1 simon simon 64 Dec  2 11:10 21 -> /usr/share/icons/hicolor/icon-theme.cache
lrwx------ 1 simon simon 64 Dec  2 11:10 22 -> 'socket:[110906]'
lrwx------ 1 simon simon 64 Dec  2 11:10 23 -> 'socket:[110907]'
lrwx------ 1 simon simon 64 Dec  2 11:10 24 -> /dev/dri/card0
lrwx------ 1 simon simon 64 Dec  2 11:10 25 -> /dev/dri/card0
lrwx------ 1 simon simon 64 Dec  2 11:10 26 -> /dev/dri/card0
lrwx------ 1 simon simon 64 Dec  2 11:10 27 -> /dev/dri/card0
lrwx------ 1 simon simon 64 Dec  2 11:10 3 -> 'socket:[111937]'
lrwx------ 1 simon simon 64 Dec  2 11:10 4 -> 'anon_inode:[eventfd]'
lrwx------ 1 simon simon 64 Dec  2 11:10 5 -> 'anon_inode:[eventfd]'
lrwx------ 1 simon simon 64 Dec  2 11:10 6 -> 'socket:[111939]'
lrwx------ 1 simon simon 64 Dec  2 11:10 7 -> 'socket:[110902]'
lrwx------ 1 simon simon 64 Dec  2 11:10 8 -> 'anon_inode:[eventfd]'
lrwx------ 1 simon simon 64 Dec  2 11:10 9 -> 'anon_inode:[eventfd]'

Not promising.

Maybe if I look into pulse itself:

simon@simon-MacBookPro:~$ ps aux | grep pulse
simon       1830  4.0  0.2 4333464 35376 ?       S<sl 09:39   6:23 /usr/bin/pulseaudio --daemonize=no --log-target=journal
root       52858  0.0  0.1 505992 17176 ?        S<l  11:05   0:00 pulseaudio --start
simon      96051  0.0  0.0   9040  2692 pts/5    S+   12:16   0:00 grep --color=auto pulse
simon@simon-MacBookPro:~$ ls -l /proc/4333464/fd
ls: cannot access '/proc/4333464/fd': No such file or directory
simon@simon-MacBookPro:~$ ls -l /proc/505992/fd
ls: cannot access '/proc/505992/fd': No such file or directory

I'm relatively new to linux. Am I even on the right track? Am I SOL? Would I be better off looking into the source code?

Answer 1

It was in ~/.config. Thanks, mchid!