3 ms·
Yeah, 18 kHz isn't really ultrasound, but 50 kHz definitely is and nobody's hearing that. You definitely don't need to go up into the MHz range and can't if the
by thfuran 1y ago
Yeah, 18 kHz isn't really ultrasound, but 50 kHz definitely is and nobody's hearing that. You definitely don't need to go up into the MHz range and can't if the goal is to use existing audio equipment.
- lxe 1y agoThey are using the 18-20Khz range though (https://halcy.de/blog/images/2025_06_27_fsk.png https://halcy.de/blog/images/2025_06_27_fsk.png)