JWPlayer not supported with 64bit Browser of Vivaldi
Re: Some HTML stream and videos won't play properly
In my opinion, the browser do not support the jwplayer. This is the reason, why many or really much clips of newspaper magazines do not properly function. One of the example is the german newspaper "Die Welt". This newspaper streams videos through the jwplayer technology, but the browser do not recognise the codec. Therefore the sound is distorted. Please add the codec to browser. Three years ago, the same issue was happen with the concurrent opera.
//modedit: changed the misleading title of the thread.
In my opinion, the browser do not support the jwplayer.
Vivaldi supports current JWPlayer.
Die Welt has older a player version which does not correctly detect browsers.
if you open Developer Tools, select Console and add the tool Network Copnditions, you can send a fakend User Agent like
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0to the videos at welt.de, then the player works correct.
The webmasters of Welt are not interested to investigate the issue after contacting them from many users. That is a bad habit for a newspaper, but a typical german attitude to blame users and customers.