Questions about Java TargetDataLine recording-CodePudding

I now have a microphone, it has two channels, I need to make the two channels can be simultaneously recording, how to write

 
AudioFormat audioFormat1=new AudioFormat (AudioFormat. Encoding. PCM_SIGNED, 16000, 1, 2, 16000, false); 
AudioFormat audioFormat2=new AudioFormat (AudioFormat. Encoding. PCM_SIGNED, 16000, 8, 2, 2, 16000, true); 

TargetDataLine d1=AudioSystem. GetTargetDataLine (audioFormat1); 
D1. The open (); 
D1. Start (); 

TargetDataLine d2=AudioSystem. GetTargetDataLine (audioFormat1); 
D2. The open (); 
D2. Start ();

So write, on the microphone in d1, to get d2, d2 throws an exception, don't get resources,

 
AudioFormat audioFormat1=new AudioFormat (AudioFormat. Encoding. PCM_SIGNED, 16000, 1, 2, 16000, false); 
AudioFormat audioFormat2=new AudioFormat (AudioFormat. Encoding. PCM_SIGNED, 16000, 8, 2, 2, 16000, true); 

DataLine. Info Info=new DataLine. Info (TargetDataLine. Class, new AudioFormat [] {
AudioFormat1 audioFormat2, audioFormat1 
}, AudioSystem NOT_SPECIFIED, AudioSystem NOT_SPECIFIED); 

TargetDataLine targetDataLine1=(TargetDataLine) AudioSystem. GetLine (info);

So I write, however, finally only AudioFormat list at the end of the channel of an object can use the

Have a great god know why this is, to solve