No. You cannot switch the audio during the playback. If you choose a subbed version, playback will start with the original audio. If you select a dubbed version, it will begin with Japanese audio.
For more information on how to choose a subbed/dubbed (Japanese) version, please check the following articles.
[Windows/Mac] How do I set up subtitles and audio language?
[Smartphone/tablet] How do I set up subtitles and audio language?
[TV] How do I set up subtitles and audio language?
[Chromecast] How do I set up subtitles and audio language?
For more information on how to choose a subbed/dubbed (Japanese) version, please check the following articles.
[Windows/Mac] How do I set up subtitles and audio language?
[Smartphone/tablet] How do I set up subtitles and audio language?
[TV] How do I set up subtitles and audio language?
[Chromecast] How do I set up subtitles and audio language?
You cannot switch the audio on Live TV channels. As they have fixed streaming schedules, the audio language may vary. For language availability, please check the program guides (Japanese only).