Make sure that sound files can be distributed as part of a Free Software product (check or replace)

The file https://gitlab.com/martin-tornqvist/ia/-/blob/develop/installed_files/README-AUDIO-FILES.txt should be complete and all sounds should be liberal enough to be distributed from the Debian main repository. (It is fine to distribute other files, it is just nicer if all sounds were matching high standards. :) )

If someone holds the rights to some of these files are does know replacement sounds with a more favourable license, please let us know.

Here is a list of sounds that can use improvement (as of today):

non-free license (count: 10)

File:                amb_004.ogg
License:             Attribution-NonCommercial 3.0 Unported (CC-BY-NC-3.0)
File:                amb_035.ogg
License:             Attribution-NonCommercial 3.0 Unported (CC-BY-NC-3.0)
File:                amb_037.ogg
License:             Attribution-NonCommercial 3.0 Unported (CC-BY-NC-3.0)
File:                sfx_door_break.ogg
License:             Attribution-NonCommercial 3.0 Unported (CC-BY-NC-3.0)
File:                sfx_fountain_drink.ogg
License(1):          Attribution-NonCommercial 3.0 Unported (CC-BY-NC-3.0)
License(2):          Sampling Plus 1.0

File:                amb_021.ogg
License:             https://www.pmsfx.com/legal-1
File:                amb_031.ogg
License:             https://www.pmsfx.com/legal-1
File:                sfx_strange_device_activate.ogg
License:             https://www.pmsfx.com/legal-1
File:                sfx_strange_device_damaged.ogg
License:             https://www.pmsfx.com/legal-1
File:                sfx_statue_crash.ogg
License:             https://www.pmsfx.com/legal-1

license not researched (count: 61)

File:                amb_007.ogg
File:                amb_008.ogg
File:                amb_009.ogg
File:                amb_010.ogg
File:                amb_011.ogg
File:                amb_012.ogg
File:                amb_013.ogg
File:                amb_014.ogg
Source:              Created for Infra Arcana
File:                amb_015.ogg
File:                amb_016.ogg
File:                amb_017.ogg
File:                amb_018.ogg
File:                amb_019.ogg
File:                amb_020.ogg
File:                amb_022.ogg
Source:              Created for Infra Arcana
File:                amb_023.ogg
File:                amb_024.ogg
File:                amb_025.ogg
File:                amb_026.ogg
File:                amb_027.ogg
File:                amb_028.ogg
File:                amb_029.ogg
File:                amb_030.ogg
File:                amb_036.ogg
File:                amb_038.ogg
File:                amb_048.ogg
File:                amb_049.ogg
File:                sfx_door_bang.ogg
File:                sfx_door_close.ogg
File:                sfx_door_open.ogg
File:                sfx_electric_lantern.ogg
File:                sfx_explosion_molotov.ogg
File:                sfx_explosion.ogg
File:                sfx_flapping_wings.ogg
File:                sfx_ghoul_growl.ogg
File:                sfx_glop.ogg
File:                sfx_hit_corpse_break.ogg
File:                sfx_hit_hard.ogg
File:                sfx_hit_medium.ogg
File:                sfx_hit_sharp.ogg
File:                sfx_hit_small.ogg
File:                sfx_insanity_rising.ogg
File:                sfx_machine_gun_fire.ogg
File:                sfx_machine_gun_reload.ogg
File:                sfx_metal_clank.ogg
File:                sfx_miss_heavy.ogg
File:                sfx_miss_light.ogg
File:                sfx_miss_medium.ogg
File:                sfx_ooze_gurgle.ogg
File:                sfx_pickup.ogg
File:                sfx_pistol_fire.ogg
File:                sfx_pistol_reload.ogg
File:                sfx_potion_quaff.ogg
File:                sfx_ricochet.ogg
File:                sfx_shotgun_pump_fire.ogg
File:                sfx_shotgun_reload.ogg
File:                sfx_shotgun_sawed_off_fire.ogg
File:                sfx_spell_generic.ogg
File:                sfx_wolf_howl.ogg
File:                sfx_zombie_growl.ogg
File:                musica_cthulhiana_fragment_madness.ogg

license needs to be added (count: 2)

File:                sfx_boss_voice1.ogg
Author:              Martin Törnqvist
File:                sfx_boss_voice2.ogg
Author:              Martin Törnqvist

(Can be counted by grep File: | wc)