16 ms·
Could have been the pulse frequency of old magnetostriction loss prevention rfid tags. The tone is not meant to be audio, but might be inadvertently emitted by
by RF_Savage 2y ago
Could have been the pulse frequency of old magnetostriction loss prevention rfid tags.
The tone is not meant to be audio, but might be inadvertently emitted by the electronics.
- zachrip 2y agoI wear hearing aids and could always hear them as I passed near them. Obviously not the same as real sound as it was just interfering or something.