Table 8 Some key differences between the method in Ref. 1 and the new one.
From: A novel approach for audible acoustic quick response codes
Questions for the candidates | Answers for the new method (the one in Ref. 1) |
|---|---|
Is a generated QR code an image/picture? | No, it is an audio (No) |
How to announce or show a generated QR code? | Just play this audio (Um, it is sort of complicated …) |
How to scan a generated QR code? | All a user needs to do is open his or her microphone (Um, it is sort of complicated …) |
What’s the principle of your QR generation? | Convert a string into pitches, and produce an audio (Um, it is sort of complicated, and it is a long story…) |
What’s the principle of your QR recognition? | Read pitches from the audio, and convert them into a string (Um, it is sort of complicated, and it is a long story …) |
Can your QR work if the announcer and scanner are far away from each other? | Yes (No) |
Can your QR work if there are obstacles between the announcer and scanner? | Yes (Hard to say) |
