31 ms·
The example figure shows a key hit every half second, which suggests a pecking style of typing at around 24 wpm. This way the model gets very clean waveforms. I
by mxwsn 3y ago
The example figure shows a key hit every half second, which suggests a pecking style of typing at around 24 wpm. This way the model gets very clean waveforms. I wonder how their approach would work with average or fast typists. The sound profiles might be much harder to link to characters.
- zaxomi 3y agoSovjet listened successfully to typewrites back in the 1970s.
- fbdab103 3y agoEven if there was ambiguity, some data is better than none. Given enough training data, I suspect you could find repeatable patterns in standard typists: on a qwerty layout, after typing an "A", "Q" takes 1.2-2.3x as long to type as a "J" kind of pairwise tempo patterns. Anything to reduce the search space from brute-forcing every candidate character. Even better if the target uses a passphrase, "hXXXse battXXX stXXXXX cXXXXXX" becomes interpretable given a few landmark letter identified with high probability.