The 32-bit float from the Mic 2 was useful because it could be retrieved from external memory, but the Mic Mini records in 24-bit, and I'm not sure where I can get audio of that quality. From the video, it seems it can only be saved as compressed 48kHz. The 16-bit stereo below is the internal backup audio of the Osmo Pocket 3.  
Even though they are two different audio sources, the audio quality is definitely lower in the video audio when it peaks. Right now, I’m using just the transmitter. Is 24-bit impossible without the receiver?

[img]https://forum22.djicdn.com/data/attachment/forum/blob:https://forum.dji.com/5752d71d-fa87-4492-91ed-859ff84be9a8[/img]

Hi Eunhae Park,

Thank You for reaching out. We are truly sorry for the inconvenience you are experiencing. Unfortunately no, you need to use it with the receiver for 24bit. I hope this information has helped to clarify your inquiries. If you have any other questions, kindly let us know. Thank You!

DJI Gamora Posted at 12-14 03:09
Hi Eunhae Park,

Thank You for reaching out. We are truly sorry for the inconvenience you are experiencing. Unfortunately no, you need to use it with the receiver for 24bit. I hope this information has helped to clarify your inquiries. If you have any other questions, kindly let us know. Thank You!

Hi,
Thank you for your quick reply.

I feel really stupid for purchasing TWO transmitters (in two different colors) when I can’t even record in 24-bit with them.
By the way, where can I find information on the requirement for a receiver to record in 24-bit on the DJI homepage?

Thanks,
Eunhae