[Pkg-utopia-maintainers] Bug#1039940: flatpak: Audio quality is diminished for flatpak apps

[machine]

Package: flatpak
Version: 1.14.4-1
Severity: important
X-Debbugs-Cc: makdamujji at rediff.com

Dear Maintainer,

* Music apps (amberol, lollypop, sayonara, etc) have diminished audio quality
on their flatpak versions. debs, appimages, official repos do not suffer from
this.

* Steps to reproduce:
    1. Install (amberol, sayonara) as flatpak and deb (from apt or software
center).
    2. Install EasyEffects from software center.
    3. Play any audio and check output quality on Easyefects dashboard:
       An audio clip which is played at 44.1kHz and 2 channels on native app
will be played at 22kHz and 1 channel on flatpak counterparts.
       This quality degradation is easily identifiable through human ears,
earphones preferred, though speakers can do the job as easily.

* This issue is not reproducible on other distro (tried on Fedora 38).


-- Package-specific info:
Permissions of /usr/bin/bwrap:
-rwxr-xr-x 1 root root 72080 Feb 28 15:08 /usr/bin/bwrap
/etc/sysctl.d/*-bubblewrap.conf:
cat: '/etc/sysctl.d/*-bubblewrap.conf': No such file or directory
/usr/lib/sysctl.d/50-bubblewrap.conf:
# Enable unprivileged creation of new user namespaces in older Debian
# kernels.
#
# If this is not desired, copy this file to
# /etc/sysctl.d/50-bubblewrap.conf and change the value of this parameter
# to 0, then use dpkg-statoverride to make /usr/bin/bwrap setuid root.
#
# For more details see https://deb.li/bubblewrap or
# /usr/share/doc/bubblewrap/README.Debian
kernel.unprivileged_userns_clone=1
/proc/sys/kernel/unprivileged_userns_clone:
1
/proc/sys/user/max_cgroup_namespaces:
26696
/proc/sys/user/max_ipc_namespaces:
26696
/proc/sys/user/max_mnt_namespaces:
26696
/proc/sys/user/max_net_namespaces:
26696
/proc/sys/user/max_pid_namespaces:
26696
/proc/sys/user/max_time_namespaces:
26696
/proc/sys/user/max_user_namespaces:
26696
/proc/sys/user/max_uts_namespaces:
26696

-- System Information:
Debian Release: 12.0
  APT prefers stable-security
  APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.1.0-9-amd64 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_IN, LC_CTYPE=en_IN (charmap=UTF-8), LANGUAGE=en_IN:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages flatpak depends on:
ii  adduser                         3.134
ii  bubblewrap                      0.8.0-2
ii  dbus [default-dbus-system-bus]  1.14.6-1
ii  fuse3                           3.14.0-4
ii  libappstream4                   0.16.1-2
ii  libarchive13                    3.6.2-1
ii  libc6                           2.36-9
ii  libcurl3-gnutls                 7.88.1-10
ii  libdconf1                       0.40.0-4
ii  libfuse3-3                      3.14.0-4
ii  libgdk-pixbuf-2.0-0             2.42.10+dfsg-1+b1
ii  libglib2.0-0                    2.74.6-2
ii  libgpgme11                      1.18.0-3+b1
ii  libjson-glib-1.0-0              1.6.6-1
ii  libmalcontent-0-0               0.11.0-4
ii  libostree-1-1                   2022.7-2
ii  libpolkit-agent-1-0             122-3
ii  libpolkit-gobject-1-0           122-3
ii  libseccomp2                     2.5.4-1+b3
ii  libsystemd0                     252.6-1
ii  libxau6                         1:1.0.9-1
ii  libxml2                         2.9.14+dfsg-1.2
ii  libzstd1                        1.5.4+dfsg2-5
ii  xdg-dbus-proxy                  0.1.4-3

Versions of packages flatpak recommends:
ii  ca-certificates                                        20230311
ii  desktop-file-utils                                     0.26-1
ii  gtk-update-icon-cache                                  3.24.37-2
ii  hicolor-icon-theme                                     0.17-2
ii  libpam-systemd                                         252.6-1
ii  p11-kit                                                0.24.1-2
ii  polkitd                                                122-3
ii  shared-mime-info                                       2.2-1
ii  xdg-desktop-portal                                     1.16.0-2
ii  xdg-desktop-portal-gnome [xdg-desktop-portal-backend]  43.1-2
ii  xdg-desktop-portal-gtk [xdg-desktop-portal-backend]    1.14.1-1
ii  xdg-user-dirs                                          0.18-1

Versions of packages flatpak suggests:
ii  avahi-daemon    0.8-10
ii  malcontent-gui  0.11.0-4

Versions of packages bubblewrap depends on:
ii  libc6        2.36-9
ii  libcap2      1:2.66-4
ii  libselinux1  3.4-1+b6

Versions of packages bubblewrap recommends:
ii  procps  2:4.0.2-3

-- no debconf information