_Title "Make your keyboard flash with music"

Dim As Long s, d, Sam

Dim As _MEM m

Dim As _Float Volume, Position



s = _SndOpen("10.mp3") 'liquido - narcotic

m = _MemSound(s, 0)

If m.ELEMENTSIZE <> 8 Then Print "try another mp3 sound file": _SndClose s: End

_SndPlay s

T = Timer

DetectTime = .005

Samples = _SndRate * DetectTime



'detect maximal volume level in record (left channel)

Do Until d = m.SIZE - 8

    CurrentVolLevel = Abs(_MemGet(m, m.OFFSET + d, Single))

    If VolLevel < CurrentVolLevel Then VolLevel = CurrentVolLevel

    d = d + 8

Loop



Do While _SndPlaying(s)

    Position = 8 * (_SndGetPos(s) * _SndRate)

    If Position Mod 8 = 0 Then

        Sam = Sam + 1

        Volume = Volume + Abs(_MemGet(m, m.OFFSET + Position, Single))

    End If



    If T + DetectTime < Timer Then

        Volume = Volume / Sam

        Locate 1

        Print "Listen to music while watching numlock, capslock and scrolllock"

        Print

        Print "Current volume level: "; Int((Volume / VolLevel) * 100); "%"; "  "

        Select Case Volume / VolLevel

            Case Is < .05 * VolLevel: _Scrolllock Off: _Numlock Off: _CapsLock Off

            Case .051 * VolLevel To .3 * VolLevel: _Numlock On: _Scrolllock Off: _CapsLock Off

            Case .3 * VolLevel To .6 * VolLevel: _Numlock On: _CapsLock On: _Scrolllock Off

            Case Is > .6 * VolLevel: _Scrolllock On: _Numlock On: _CapsLock On

        End Select

        T = Timer

        Volume = 0

        Sam = 0

   End If

Loop

_MemFree m

_SndClose s

System