proc/build_random_echo()
    var/list/echo[18]
    echo[1] = rand(-10000, 1000)  //direct
    echo[2] = rand(-10000, 0)      //direct hf
    echo[3] = rand(-10000, 1000)      //room
    echo[4] = rand(-10000, 0)      //room hf
    echo[5] = rand(-10000, 0)      //obstruction
    echo[6] = rand(0, 100) * 0.01    //obstruction lf ratio
    echo[7] = rand(-10000, 0)      //occlusion
    echo[8] = rand(0, 100) * 0.01    //occlusion lf ratio
    echo[9] = rand(0, 100) * 0.1    //occlusion room ratio
    echo[10] = rand(0, 100) * 0.1    //occlusion direct ratio
    echo[11] = rand(-10000, 0)      //exclusion
    echo[12] = rand(0, 100) * 0.01    //exclusion lf ratio
    echo[13] = rand(-10000, 0)      //outside volume hf
    echo[14] = rand(0, 100) * 0.1    //doppler factor
    echo[15] = rand(0, 100) * 0.1    //rolloff factor
    echo[16] = rand(0, 100) * 0.1    //room roll off factor
    echo[17] = rand(0, 100) * 0.1    //air absorption factor
    echo[18] = 1 | 2 | 4 //flags

    return echo

mob/verb/test2()
    var/sound/dry = sound('clap.ogg')
    var/sound/wet = sound('clap.ogg')

    wet.environment = 1
    wet.echo = build_random_echo()

    src << dry
    sleep(5)
    src << wet