@sgunhouse Thanks for your suggestion. I have tried to turn on ads option in the "setting site" setting. Then it's working well now.

It's quite surprise for me since I have done the same as Chrome browser's with block ads option. Then it still works.

It's just my curiosity.
I do appreciate your helps alot.

@sgunhouseThanks for your reply.

Have you tried this link?

It does not work for me.

So do you think there are some conflicts in some extensions or programmes?

Hello all,
I have a problem with sound when using opera version Version: 67.0.3575.79 to open an audio in the website https://www.larousse.fr. For example, it does not work in following link
https://www.larousse.fr/dictionnaires/francais-anglais/aimer/1925

More information: Opera works well with youtube and other sites
I have tried above link in chrome browser, it is fine as well.
And I am using win10 Pro Version 1909

Thanks in advance.