PowerShell: script to test takc 2.3.0 and 2.3.1

taktest.ps1

[CmdletBinding()]
param (
    [Parameter(Mandatory, ValueFromPipeline, Position = 0)]
    [ValidatePattern('\.wav$', ErrorMessage = "You should specify .wav files")]
    [string[]]$Input,
    [Parameter(Position = 1)][Alias('p')]
    [uint]$Passes = 10
)
process {
    Class Result {
        [string]$Version
        [float]$Compress
        [long]$Filesize_bytes
        [float]$Enc_dur_sec
        [float]$Encode_speed
        [float]$Decode_speed
    }
    Get-Item -LiteralPath $Input | Foreach-Object {
        $wavfile = $_
        $wavfile_info = (mediainfo --Output=JSON $($wavfile.FullName) | ConvertFrom-Json).media.track
        $finalresults = @()
        $finalresults += [Result]@{
            Version = "WAV"
            Compress = 100
            Filesize_bytes = $wavfile.Length
        }
        "231", "232" | Foreach-Object {
            $results = @()
            $tak = ".\takc$_"
            $takfile = "test$_.tak"
            Write-Host "Version $_, $Passes passes " -NoNewLine
            for ($i = 0; $i -lt $Passes; $i ++) {
                Write-Host "." -NoNewLine
                $data = & $tak -e -overwrite -p4m -md5 -tn4 $wavfile.Name $takfile
                $data2 = & $tak -t $takfile
                $results += [Result]@{
                    Compress = ($data[2] -replace '[^\d\.]','') -as [float]
                    Filesize_bytes = (Get-Item -LiteralPath $takfile).Length
                    Enc_dur_sec = ($data[3] -replace '[^\d\.]','') -as [float]
                    Encode_speed = ($data[4] -replace '[^\d\.]','') -as [float]
                    Decode_speed = ($data2[3] -replace '[^\d\.]','') -as [float]
                }    
            }
            Write-Host
            Remove-Item -Path $takfile
            $finalresults += [Result]@{
                Version = $_
                Compress = [Math]::Round(($results | Measure-Object -Property Compress -Average).Average, 2)
                Filesize_bytes = [Math]::Round(($results | Measure-Object -Property Filesize_bytes -Average).Average, 0)
                Enc_dur_sec = [Math]::Round(($results | Measure-Object -Property Enc_dur_sec -Average).Average, 2)
                Encode_speed = [Math]::Round(($results | Measure-Object -Property Encode_speed -Average).Average, 2)
                Decode_speed = [Math]::Round(($results | Measure-Object -Property Decode_speed -Average).Average, 2)
            }
        }
        Write-Host
        Write-Host "$($wavfile.Name), " -NoNewLine
        Write-Host "$("{0:hh\:mm\:ss}" -f[timespan]::fromseconds($wavfile_info[0].Duration))," -NoNewLine
        Write-Host "$($wavfile_info.Channels) ch,$($wavfile_info.BitDepth) bit,$($wavfile_info.SamplingRate) Hz"
        Write-Output $finalresults | Format-Table
        Write-Host
    }
}