https://devzone.nordicsemi.com/f/nordic-q-a/56555/pdm---nrf52840-sdk-15-2I&#39;m having trouble with PDM on SDK15.2 with nRF52840. The raw data buffers are only half full. The last half are zero&#39;s, therefore recorded voice has a robotic sound to it. What I tried: 1) Went thru Thingy firmware thoroughly. As the other forumen-USTelligent Community 13Tue, 14 Jan 2020 18:37:47 GMThttps://devzone.nordicsemi.com/thread/229120?ContentTypeID=1Tue, 14 Jan 2020 18:37:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1bc1930f-0e45-449a-80bb-75b54583e4bfBitsAndBytes<p>After many hours.... just found the bug. It was on my side.</p> <p>The <strong>memcpy(ptrBuffer-&gt;buf, p_buffer, samples);</strong> was only copying half the data. Should be&nbsp;<strong>memcpy(ptrBuffer-&gt;buf, p_buffer, (samples * sizeof(int16_t))); .....</strong> well duh, so it goes.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/229118?ContentTypeID=1Tue, 14 Jan 2020 18:07:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a1f1e4d8-d537-48c4-9614-880f886ffe30BitsAndBytes<p>Btw, the MEMS used is either a&nbsp;MP34DT01-M or a&nbsp;<span>SPK0415HM4H on an Adafruit dev board.</span></p> <p><span>... and I&#39;ve tried both rising and falling edge.</span></p><div style="clear:both;"></div>