larryepage wrote:
I am not familiar with the EOS T3i, but my D850 has a menu selection that allows me to turn off AGC from the mic inputs, whether the internal microphones or external inputs, and manually select a record audio level. Can you find such an option somewhere among your menu choices?
That’s a good suggestion. If you input a low level to the camera with AGC enabled, it will increase the gain (and noise) to attempt to increase the low level.