https://devzone.nordicsemi.com/f/nordic-q-a/118155/chirp-in-i2s-recordingHi there, So in my previous posts, I have been asking questions about setting i2s on two nRF devices in different modes. I have been successful in making it work. However, as I have now observed the data, there is an unusual chirp waveform inen-USTelligent Community 13Tue, 21 Jan 2025 14:11:27 GMThttps://devzone.nordicsemi.com/thread/519330?ContentTypeID=1Tue, 21 Jan 2025 14:11:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f7abab89-4971-49bf-824d-e5014e09c916mathiaso<p>Thank you, Umer.</p> <p>From your code snippet, it looks like the microphone provides the I2S data directly. As I2S is a purely digital signal, I&#39;d think the offset/chirp is already there when the data is sent from the microphone to the nRF5340. Does your microphone&#39;s datasheet mention any filters that can be adjusted?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/519170?ContentTypeID=1Mon, 20 Jan 2025 22:06:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7e2a7ad8-e1ac-44be-a645-29346286e96aumer<p>Thanks for the reply. I have modified the original post to reflect the time axes.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/519131?ContentTypeID=1Mon, 20 Jan 2025 15:20:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a94b234b-7908-4a58-9cba-13f526a2b9a1mathiaso<p>Hi, Umer.</p> <p>Would you be able to include the time axis as well in your plots?</p> <p>Best regards,<br />Mathias</p><div style="clear:both;"></div>