Expression 13: min left parenthesis, "x" , 20log "a" , right parenthesisminx,20loga
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Лог компрессия плюс сухой сигнал
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Expression 17: min left parenthesis, "x" , 20log left parenthesis, "m" 10 Superscript, StartFraction, "b" Over 20 , EndFraction , Baseline plus left parenthesis, 1 minus "m" , right parenthesis "x" Subscript, "r" , Baseline , right parenthesis , right parenthesisminx,20logm10b20+1−mxr