set_BPM

set_BPM

Sets BPM

Sets a common BPM used by the wave.

Parameters

BPM

required	type	position	pipeline	wildcard	aliases
false	Object	1	false	false

View Source

<#
.SYNOPSIS
    Sets BPM
.DESCRIPTION
    Sets a common BPM used by the wave.
#>
param(
$BPM
)

if ($bpm -is [TimeSpan]) {
    # If the BPM is already a timespan, just cache it
    $this | 
        Add-Member NoteProperty '#BPM' $bpm -Force
    return
} else {
    # Otherwise, strip anything that is not a digit or a period
    $bpm = $bpm -replace '[\D-[\.]]' -as [float] # and cast it to float.

    # If that worked, 
    if ($bpm) {
        # convert it into a timespan.    
        $this | 
            Add-Member NoteProperty '#BPM' (
                [TimeSpan]::FromSeconds(
                    60/$bpm
                )
            ) -Force
    }
}