QUERY-BY-EXAMPLE ON-DEVICE KEYWORD SPOTTING
Table 1: FRR (%) at 0.05 FAs per hour for clean and SNR levels {10 dB, 6 dB, 0 dB} of positives.
['Method', 'Keyword', 'clean', '10 dB', '6 dB', '0 dB', 'Avg.']
We build 3 hypothesis FST for each system. We tested all 111 user-specific models and average them by keywords. The method using FST consistently outperforms the S-DTW while using a same query, and ‘Hey Snapdragon’ stands out than ‘Hey Snips’. The query word, ‘Hey Snips’ is short and false alarms are more likely to occur.