No sound on lookup pages (eg Google translate)

massofan · 08-25-2021, 08:51 PM

Hi.
I have a problem with audio in the Calibre e-book reader on the lookup pages.
I select the word in the e-book reader, then click "lookup [L]" icon. Then I get the google translate page and everything fine except for the audio. There's no sound when I click to pronounce the word. How can I fix that?

Calibre 5.25 on linux (Ubuntu 20.04)

kovidgoyal · 08-25-2021, 11:47 PM

You would need audio drivers compatible with the version o Qt WebEngine bundled with calibre. Sadly, this is no simple task. Your best bet (assuming you are on a decent distro) may be to use the distro calibre package.

massofan · 08-26-2021, 06:34 PM

kovidgoyal, sorry if it's a stupid question. I googled a little (I guess I can't put a link here) and found that I need to force QtWebEngine to use ALSA. In embedded systems, it is disabled by default.

So do I need to recompile QtWebEngine with an additional flag to allow audio and then somehow rebuild the whole Calibre?
Maybe you could add option to use system QtWebEngine instead of embedded one? I don't have problems with audio on default pyqt5 QWebEngineView.

kovidgoyal · 08-26-2021, 10:01 PM

I'm afraid using system webengine is a no go, there are too many compatibility problems. Like I said your best bet is to use a decent linux distro like Arch, and use the system calibre package for it.

08-25-2021, 08:51 PM	#1
massofan Junior Member Posts: 2 Karma: 10 Join Date: Aug 2021 Device: none	No sound on lookup pages (eg Google translate) Hi. I have a problem with audio in the Calibre e-book reader on the lookup pages. I select the word in the e-book reader, then click "lookup [L]" icon. Then I get the google translate page and everything fine except for the audio. There's no sound when I click to pronounce the word. How can I fix that? Calibre 5.25 on linux (Ubuntu 20.04)

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08-25-2021, 11:47 PM	#2
kovidgoyal creator of calibre Posts: 43,964 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	You would need audio drivers compatible with the version o Qt WebEngine bundled with calibre. Sadly, this is no simple task. Your best bet (assuming you are on a decent distro) may be to use the distro calibre package.

08-26-2021, 06:34 PM	#3
massofan Junior Member Posts: 2 Karma: 10 Join Date: Aug 2021 Device: none	kovidgoyal, sorry if it's a stupid question. I googled a little (I guess I can't put a link here) and found that I need to force QtWebEngine to use ALSA. In embedded systems, it is disabled by default. So do I need to recompile QtWebEngine with an additional flag to allow audio and then somehow rebuild the whole Calibre? Maybe you could add option to use system QtWebEngine instead of embedded one? I don't have problems with audio on default pyqt5 QWebEngineView.

08-26-2021, 10:01 PM	#4
kovidgoyal creator of calibre Posts: 43,964 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I'm afraid using system webengine is a no go, there are too many compatibility problems. Like I said your best bet is to use a decent linux distro like Arch, and use the system calibre package for it.

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