SignalOperators.jl：一组用于处理数字信号（例如声音）的运算符

信号操作员 SignalOperators是一个软件包，旨在提供一个干净的界面来生成和处理信号：通常是声音，但是可以对定期采样的任何信号进行操作。 using WAV using SignalOperators using SignalOperators . Units # allows the use of dB, Hz, s etc... as unitful values # a pure tone 20 dB below a power 1 signal, with on and off ramps (for # a smooth onset/offset) sound1 = Signal (sin,ω = 1 kHz) |> Until ( 5 s) |> Ramp |> Normpower |> Amplify ( - 20 dB) # a sound defined by