Ubuntu / Ubuntu / Ubuntu

From the ubuntu-sounds COPYRIGHT file:
"Copyright (C) 2004 Canonical Ltd.
Sounds composed and recorded by Nathaniel McCallum

This work is licensed under the Creative Commons Attribution-ShareAlike License."

The following sounds are reused from GNOME 2.8, the desktop environment of Ubuntu 4.10:
- gtk-events\toggled.wav
- card_shuffle.wav
- phone.wav

Although the COPYRIGHT file was not updated, the new startup and shutdown sounds were created by Peter Savage. Other sounds remain intact. These are different arrangements of the sounds that appear in the final release of 6.10.

Although the COPYRIGHT file was not updated, the new startup and shutdown sounds were created by Peter Savage. Other sounds remain intact.

Starting from 8.10, all sounds were downsampled from 44khz to 22khz to save space.

All sounds were downsampled from 44khz to 22khz to save space. The freedesktop sound theme was included as part of the ubuntu-sounds package, but this was removed in the final release.

From the freedesktop sound theme README file:
"LICENSES AND ORIGINS:
gnome-audio

Andreas Karlsson under the Creative Commons ShareAlike 2.0
Martyn Clement under the Creative Commons - Attribution-Share Alike 2.0 Generic
Ivica Ico Bukvic (SlipStreamScapes) under the Creative Commons - Attribution 3.0 Unported

See the packages' README for details.

Ekiga
Damien Sandras under GPLv2

KDE
The KDE developers* under LGPLv2

Pidgin/Purple

The Pidgin developers under GPLv2

ALSA
The ALSA developers under GPLv2"

"PUT TOGETHER BY:
Lennart Poettering, 2008"

*Nuno Filipe Povoa is credited in the oxygen-sounds package.

Includes the sounds from previous versions, as well as a few sounds taken from the freedesktop sound theme, which in turn originate from other sources. Specific attribution for each sound is currently not available, so the staff are not listed here.

Two more sounds from the freedesktop sound theme were added.

The startup sound was disabled in 12.04 LTS.

The freedesktop sound theme was added, a newer version than the one included with 8.10 Beta. From its CREDITS file:
"alarm-clock-elapsed
        Copyright: Tim/corsica_s
        URL: http://www.freesound.org/samplesViewSingle.php?id=67091
        License: CC-BY-SA (relicensed with permission from author)

audio-channel-front-center
audio-channel-front-left
audio-channel-front-right
audio-channel-rear-center
audio-channel-rear-left
audio-channel-rear-right
audio-channel-side-left
audio-channel-side-right
audio-test-signal
        Copyright: The ALSA developers
        URL: http://git.alsa-project.org/?p=alsa-utils.git;a=tree;f=speaker-test/samples;hb=HEAD
        License: GPLv2+

audio-volume-change
        Copyright: Lucas McCallister
        URL: http://www.freesound.org/samplesViewSingle.php?id=67091
        License: CC-BY-SA (relicensed with permission from author)

trash-empty
        Copyright: Dr. Richard Boulanger et al
        URL: http://www.archive.org/details/Berklee44v10
        License: CC-BY Attribution 3.0 Unported

complete
        Copyright: Dr. Richard Boulanger et al
        URL: http://www.archive.org/details/Berklee44v11
        License: CC-BY Attribution 3.0 Unported

bell
        Copyright: Dr. Richard Boulanger et al
        URL: http://www.archive.org/details/Berklee44v12
        License: CC-BY Attribution 3.0 Unported


camera-shutter
screen-capture
        Copyright: freesound user horsthorstensen
        URL: http://www.freesound.org/samplesViewSingle.php?id=72714
        License: CC-BY-SA (relicensed with permission from author)

device-added
device-removed
power-plug
power-unplug
network-connectivity-established
network-connectivity-lost
message
dialog-information
dialog-warning
        Copyright: Ivica Bukvic
        URL: http://gnome-look.org/content/show.php/%22Borealis%22+sound+theme?content=12584
        License: CC-BY-SA


message-new-instant*

phone-incoming-call
phone-outgoing-busy
phone-outgoing-calling
        Copyright: Damien Sandras
        URL: http://git.gnome.org/cgit/ekiga/tree/sounds
        License: GPLv2+

service-login
service-logout
        Copyright: The Pidgin developers
        License: GPLv2

suspend-error
        Created by Richard Hughes
        Copyright: Red Hat, Inc.
        License: CC-BY-SA"

*Although no source was given, this is taken from KDE 4's oxygen-sounds sound theme, created by Nuno Filipe Povoa.

The new Yaru sound theme was created by Mads Rosendahl (MadsRH) and is primarily a combination of the WoodenBeaver and Touch-Remix sound themes that he previously created as proposals; the latter is based on Ubuntu Touch sounds created by Jouni Helminen. Rosendahl is created in the Yaru theme's AUTHORS file but not under a specific role. The freedesktop sound theme is also still included.

Starting from 19.04, the sounds were slightly amplified.

A logoff sound was added. While it was originally intended to be part of the Yaru sound theme, it had not been previously included to make logging off faster.

To celebrate the 20th anniversary of Ubuntu, the startup sound from 4.10 was added and enabled by default. It is still included in 25.04 and later, but disabled by default.