How buffer sizes (i.e. latency) is handed in audio recording and playback

[bitandbytes]

Hi all,

Is it possible to set the buffer size (i.e. latency) for the recording and playback use cases. Specifically, I want to understand how the buffer sizes (.i.e. latency between reads) are set in the startPlayerFromMic() function? 
Is it possible to set these buffer sizes externally? This is quite vital when it comes to optimizing the audio paths.

Thank you for you help in advance.

Best regards,
Ravindu