It's just a Phase, mom
I guess you've watched my video about Phase. If you didn't, it's 15 minutes well spent:
If you want to take the survey, scroll down to the bottom of this page. Else, have fun with some audio samples with weird phases ^_^
Random phase swaps
You can hear 15 notes, all at 220Hz. Some of them have a flipped phase.
220 Hz, random swaps
Phase drift sweeps
The next samples sweep the phase on the right ear from 0° to 180° and back to 0°. The left ear's phase is always at 180°. I made samples for different pitches (care: high pitches can be pretty annoying — keep your volume low, and turn it up only when you feel comfortable).
| Pitch | Sample |
|---|---|
| 55 Hz | |
| 110 Hz | |
| 220 Hz | |
| 440 Hz | |
| 880 Hz |
Phase-flip pairs
Now a few samples where you hear 4 notes. Notes 1 and 3 are identical and share the same phase, while notes 2 and 4 are identical but have a flipped phase, either 180° or 90°.
| Pitch / flip | Sample |
|---|---|
| 55 Hz, 180° flipping | |
| 220 Hz, 180° flipping | |
| 220 Hz, 90° flipping | |
| 880 Hz, 180° flipping | |
| 880 Hz, 90° flipping |