[Console]::OutputEncoding = [Text.Encoding]::UTF8
$raw = [IO.File]::ReadAllBytes("$env:TEMP\opencode\fix1.tsv")
$text = if ($raw[0] -eq 0xFF -and $raw[1] -eq 0xFE) { [Text.Encoding]::Unicode.GetString($raw) } else { [Text.Encoding]::UTF8.GetString($raw) }
$lines = $text -split "`r?`n"
foreach ($l in $lines) {
    $p = $l -split "`t"
    if ($p.Count -lt 5 -or -not $p[4]) { continue }
    $h = $p[4] -replace " ", ""
    if ($h.Length -lt 100) { continue }
    if ($h.Substring(0x28 * 2, 8) -eq "41454348") { Write-Host ("AECH t={0,9} src={1} len={2}" -f $p[0], $p[1], ($h.Length/2)) }
    if ($h.Substring(0x28 * 2, 8) -eq "41455245") { Write-Host ("AERE t={0,9} src={1} len={2} c0={3}" -f $p[0], $p[1], ($h.Length/2), $h.Substring(0xC0*2,8)) }
}