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the value of db_min #4

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xujinchang opened this issue Sep 23, 2022 · 1 comment
Open

the value of db_min #4

xujinchang opened this issue Sep 23, 2022 · 1 comment

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@xujinchang
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"double db_min = std::max(log10(totle) * 10 - 60, -99.0);" 能帮忙解释一下这个db_min的取值吗，为什么用rms减去60呢，很好奇这个超参数是怎么选取的，如果我改大些，指纹数减少，会对性能损失影响大吗？
@stdio2016
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這個60是60分貝的意思，目的是排除掉背景雜訊。我只是隨便選一個數字而已，並沒有調整過這個參數

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@stdio2016 @xujinchang