I’m not sure how to check if the audio channel is the same as the phone channel…..can you give a little more info how to check that? I attempted with “Settings” from Mobile Moodle, but didn’t find any options for sound, and didn't find any options in the iPhone's Settings dealing with this.
Volume Set for audio file is not showing the player controls. On screen I can see the time controls which show the track is moving, but no volume control is visible. However, in the video I can see the volume control, and set it to the highest but still do not hear anything.
On the same phone I can play all kinds of mp3 files from other sources, so the phone is working and has an mp3 player.
I also configured the audio file to be downloadable by students directly from the site, but the same thing happens without sound in the player.