Audio Problem on some Android Devices

Hello. I launched this sound sequencer app…
It works fine on some devices, but there are some that sound weird, the sound pitch looks like it’s 50% (sounds very low freq).

Today i noticed that in a Huawei PSmart 2017
Any clues about whats happening? Can this be related with latency?

Thank you

Are you changing the AudioConfiguration sampleRate? I think I had the same issue in the past and ended up using 24000 hz for all devices.