[fix] fix empty asr result (#1794)

Xingchen Song(宋星辰)

2024-06-07 93a02feda1848531a48a1794a8de12a962c84a8e

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boy
boy
boy
boy
boy
boy
boy
girl
girl
pretty girl
cat
dog
dog
dog
rat
red faced clown
green caterpillar