INMP441 channel & bit conversion

[aqildad-create]

I have INMP441 MCROPHONE WHOSE L/R PIN IS CONNECTD TO GROUND .

IT WORK WITH 2 CHANNEL AND SEND DATA TO SBC for further processing but data size is large due to 2 channels so i add channel from 2 to 1 in format converter stream which i was using for 32 bit to 16 bit conversion only and converter is working with this .

but after adding channel 2 to 1 in FormatConverterStream then i get noise only .

what think to consider for channel conversion ?
From channel 2 to 1 which channel of INMP441 will it use ? should i connect L/R to high in order to select the correct channel ?

AudioInfo from(44100,2,32);
AudioInfo to (44100,1,16);
FormatConverterStream conv(out);
EncodedAudioStream encStream(out, enc);
.
conv.begin(from, to);

[pschatzmann]

Strange, I am pretty sure that I have tested this scenario.
If it is not working you can still use a ChannelFormatConverterStream and a NumberFormatConverterStream

[aqildad-create]

L/R pin is grounded then after ChannelFormatConverterStream from 2 to 1 which channel will eliminated ? channel 1 or 2 ? or else converter knows the channel which values is zeros will be eliminated ?

[pschatzmann]

No channel is eliminated: they are mixed together from 2 to 1.