Hello,
the SAI interrupt playback example utilizes 16 bits per frame to sample audio data from microphone with a fs of 16k. the codec WM8960 was used here. The data in Buffer is shown 40,0; 41,0; 244,255, 251,255; 12,0; 251,255;249,255 ... when I ran this example in a office environment. Attached is a screen shoot of the Buffer.
I did not do any modification of the original code. But the values are quite different from frame to frame. What do they mean? Should they be similar when the noise level stays at a relatively same level?
Thanks in advance.
Kind regards,
Nanjun
