A buffer in Pipewire?

    ~]$ fastfetch
██████████████████  ████████    sum@ordi
██████████████████  ████████    --------
██████████████████  ████████    OS: Manjaro Linux x86_64
██████████████████  ████████    Host: K K53SD 1.0
████████            ████████    Kernel: 5.12.1-2-MANJARO
████████  ████████  ████████    Uptime: 1 hour, 4 mins
████████  ████████  ████████    Packages: 2011 (pacman), 20 (flatpak)
████████  ████████  ████████    Shell: bash 5.1.4
████████  ████████  ████████    Resolution 1: 1366x768 @ 60Hz
████████  ████████  ████████    Resolution 2: 1680x1050 @ 60Hz
████████  ████████  ████████    DE: XFCE
████████  ████████  ████████    WM: XFWM (X11)
████████  ████████  ████████    Terminal: xfce4-terminal
████████  ████████  ████████    CPU: Intel Core i3-2350M (4) @ 2.3GHz
                                GPU 1: Intel 2nd Generation Core Processor Family Integrated Graphics Controller
                                GPU 2: Nvidia GF119M [GeForce 610M]
                                Memory: 5587MiB / 11751MiB (47%)
                                Disk (/): 38GB / 95GB (40%)
                                Disk (/home): 483GB / 819GB (58%)
                                Battery: ASUSTek K53--52 (Li-ion) [97%; Unknown]
                                Locale: fr_FR.UTF-8

Pipewire + Pulseffects + Shortwave.
I also use systemd-swap
I don’t use hibernation (never understood the purpose), got rid of light-locker, no screensaver thus.

All ok for a couple of hours, then you have kind of buffer filling : if I close Shortwave I can have up to 1 minute of music still playing and if I then look for a web video on Firefox for instance, sound comes up with a 1 minute lag !

Never had this issue before (with same setup apart kernel version, obviously).

[edit] I may not have been clear enough !

Can this behaviour be corrected or managed ?
Manjaro is the only distro I have where this happens (Shortwave + pulse effect on my other distros is real time with no increasing buffer… as was the case on Manjaro before Pipewire)

This looks like a Pipewire issue. Try posting it here: Issues · PipeWire / pipewire · GitLab