ST.mov

The audio is binary in chunks of 0.5 seconds where if we convert static to a 1 and black to a 0 we can decode the 7bit binary to get the flag.

Audio binary:1110010110000111000111110100110011011110111110110110100111001001100101110111101000001110100110100111011011100101010000011000101101111110100111100111111101
Final binary: 01110010 01100001 01100011 01110100 01100110 01111011 01110110 01101001 01100100 01100101 01101111 00100000 01110100 01101001 01101101 01100101 00100000 01100010 01101111 01101001 01110011 01111101

Flag: ractf{video time bois}