hi
i use audiounit vpio subtype to do the voip.
audio unit + voiceprocessioingIO,
when i use ipad mini 5 play sound ,the voice is big;but when i use the ipad pro whic have four speaker ,the sound voice is very small,and speak by bottom speaker .
have any method to make the voice bigger ?use the ipad pro 2019
when i use remoteio,the voice is bigger.but i need echocancellation
ipad :MTXP2CH/A