Hi,
If the method you are using to dump the audio session settings reports that the sample app is using 44.1k after listening has started and before it has stopped in the OpenEars sample app, that means one of four options: either the session reading method is unreliable, it is reading a different value than the actual current sample rate of the audio input, it is reading an input device with idiosyncratic settings which hasn’t been discussed here yet, or the statement that it is happening in an unmodified OpenEars sample app is inaccurate in some way. 44.1k is neither a default value for the mobile device (that is 48k) or the value that OpenEars is using (that is 16k). The session dumps can’t be used as a basis for more troubleshooting until that is clarified.