Nice work finding that. I never actually played back the audio but it worked when I fed it into ESP-SR so thought nothing of it. I guess it just thinks I have a deeper voice

Hi millroad, I realise you've answered yourself but, I too, had many a moment getting my head around the issues when using the INMP441 microphone. Hoping my notes will help others too, I wish I'd seen your post before I embarked on my journey :lol: In the end my approach was to configure the channel...