Audio recording failed with empty files

[Qiangest]

Other sensors are good, but audio recording always fails with some empty files. It may be successful once occasionally among several attempts. I have checked the SD card format and requirements. The problem remains with other SD cards.

Any ideas for this problem? Thanks!

[TobiasRoeddiger]

Hi, sorry to hear. Which SD card are you using specifically? Which sampling rate? Turn off the microphone first and wait for a few seconds before removing the SD card.