QAudioSink on The Spectrum app always return UnderrunError after generated tone has been played.
Steps to reproduce:
1. Run spectrum example on Android device
2. SelectPlay generated tone from Modes
3. Once sound ended press play button
UnderrunError: Audio data is not being fed to the audio device at a fast enough rate
Tested on Nokia 6.1(A10) and OnePlus 7(A11)