Are you sure about that bit rate being equal to 24/96? Are these bit rates wrong?
Settings
Bitrate
File size per second
16 bit, 44.1 KHz
1,411.2 Kbps
176.4 KB
16 bit, 48 KHz
1,536 Kbps
192 KB
24 bit, 48KHz
2,304 Kbps
288 KB
24 bit, 96KHz
4,608 Kbps
576 KB