PinePhone earpiece too quiet

[Waffelo]

I got my PinePhone and I have been trying to call with people, but it seems like the earpiece is just too quiet and low quality because I cannot understand a lot of what the person at the other end says and also it sometimes sounds like those low bitrate chinese toy phones. I don't know if this is an issue with my distro or hardware but it is pretty annoying. I use ArchLinux with Phosh, I found the image from the official Pine64 software releases page.