According to the datasheet for the inmp441, if the L/R pins are connected to GND, the output will be the left channel.

Therefore, it is necessary to modify the .channel_format = I2S_CHANNEL_FMT_ONLY_RIGHT to .channel_format = I2S_CHANNEL_FMT_ONLY_LEFT in the audio_server.h file.
According to the datasheet for the inmp441, if the L/R pins are connected to GND, the output will be the left channel.

Therefore, it is necessary to modify the
.channel_format = I2S_CHANNEL_FMT_ONLY_RIGHTto.channel_format = I2S_CHANNEL_FMT_ONLY_LEFTin theaudio_server.hfile.