How android to obtain dual mic independent recording data at the same time-CodePudding

 
AudioRecord=new audioRecord (AUDIO_SOURCE,//specified audio source, here for the microphone 
FREQUENCY,//16000 hz sampling FREQUENCY 
CHANNELCONGIFIGURATION,//recording channel 
AUDIO_SOURCE_BUTTOM,//recording coding format 
RecBufSize);//record buffer size//modify first

Before recording only need to call this.
TDOA recently doing, it is based on a mobile phone, dual mic comparing two mic receive audio signals difference.
So how to get two mic audio data?
Need to open two AudioRecord or modify the underlying things?