Task: i want set recording quality 8kHZ(phone) by using smart recorder app
Steps:
click on back page icon ( backward arrow ) at the upper left side of the screen to view the settings detail 
click on back page icon ( backward arrow ) at the upper left side of the screen to view the settings detail 
click on vertical three dots line button at upper right side of the screen to modify  sound  quality 
choose settings option ( last second option ) from pop up window at upper right corner of the screen 
click on first option ( sample rate) at top of the screen 
choose first option ( 8kHz phone) from pop up window at the screen