kiwix triggers speech on virtual-terminal

[OrionRandD]

When I open kiwix on my Debian(Linux) Desktop, kiwix triggers a speech annoying process on my VTerms (virtual-terminals - which i access with C-Alt(F1-F6) keyboard keys....
I thought that is was a speech-dispatch issue, but I've purged it and the problem remains...

/tmp $ fg
kiwix-desktop
Connection to speech-dispatcher failed
Connection to speech-dispatcher failed
js: Uncaught TypeError: Cannot read property 'dataset' of null
js: Uncaught ReferenceError: $ is not defined

The problem is related to qtwebengine that after lauch kiwix-desktop, also triggers all these procecess

PID TTY      STAT   TIME COMMAND

(...)

25893 pts/3 Sl+ 0:27 kiwix-desktop
25900 pts/3 S+ 0:00 /usr/lib/x86_64-linux-gnu/qt5/libexec/QtWebEngineProcess --type=zygote --no-zygote-sandbox --application-name=kiwix-desktop --webengine-schemes=zim:;qrc:sLV --lang=en
25901 pts/3 S+ 0:00 /usr/lib/x86_64-linux-gnu/qt5/libexec/QtWebEngineProcess --type=zygote --application-name=kiwix-desktop --webengine-schemes=zim:;qrc:sLV --lang=en
25903 pts/3 S+ 0:00 /usr/lib/x86_64-linux-gnu/qt5/libexec/QtWebEngineProcess --type=zygote --application-name=kiwix-desktop --webengine-schemes=zim:;qrc:sLV --lang=en
25922 pts/3 S+ 0:11 /usr/bin/aria2c --follow-metalink=mem --enable-rpc --rpc-secret=********* --rpc-listen-port=42042 --input-file=/home/lea/.local/share/kiwix-desktop/kiwix.session --save-session=/home/lea/.local/share/kiwix-desktop/kiwix.session --auto-save-interval=10 --stop-with-process=25893 --allow-overwrite=true --dht-entry-point=router.bittorrent.com:6881 --dht-entry-point6=router.bittorrent.com:6881 --quiet=true --bt-enable-lpd=true --always-resume=true --max-concurrent-downloads=42 --rpc-max-request-size=6M --file-allocation=none
26708 pts/3 Sl+ 0:01 /usr/lib/x86_64-linux-gnu/qt5/libexec/QtWebEngineProcess --type=renderer --disable-speech-api --enable-threaded-compositing --enable-features=AllowContentInitiatedDataUrlNavigations,NetworkServiceInProcess,TracingServiceInProcess --disable-features=BackgroundFetch,ConsolidatedMovementXY,DnsOverHttpsUpgrade,FontSrcLocalMatching,InstalledApp,MojoVideoCapture,PictureInPicture,SmsReceiver,UseSkiaRenderer,WebPayments,WebUSB --disable-databases --lang=en --webengine-schemes=zim:;qrc:sLV --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=3 --shared-files

(...)

The problem is caused by:
QtWebEngineProcess --type=renderer --disable-speech-ap
But, it does not effectively disables the speech-api

And it speaks like a crazy robot when I access my VConsoles...
How do I stop Kiwix of interfering in my VTconsoles for not launcing this hellish robot aloud speaking all the time?
Thx