Yes, pretty sure. Had to zoom in a lot in audio editor to even see it. Could hear it nevertheless. It's important for the room to be quiet, as the sound is ver

Yes, pretty sure. Had to zoom in a lot in audio editor to even see it. Could hear it nevertheless. It's important for the room to be quiet, as the sound is very faint and easily masked, but it's there. It's possible that Bluetooth headphones could lose it because of compression, or cheap DAC in the sound card simply ignores least-significant bits.