I am trying to find a solution to problem described on Edge Impulse forum as well:
Basically I need to repeatedly classify a sound which is continuous and uninterrupted. When I follow the examples for a keyword recognition the TinyML board provides classification typically on the beginning of such sound and then classification stops - apparently waiting for some change in the sound intensity. I understood that this behaviour might be changed by setting the json posterior parameters (phbackoff, phwin). But even when I set the phbackoff to 0 and phwin to 1 as adwiced on the Edge impulse forum, I still have the same issue.
Any idea what might be a solution for my issue?