melt \
    noise: out=1000 \
    -filter qtext:"Welcome to the MLT
Typewriter Text Effect" \
    typewriter=1 \
    typewriter.cursor=2 \
    typewriter.cursor_blink_rate=30 \
    typewriter.cursor_char='█' \
    typewriter.step_length=15 \
    typewriter.step_sigma=2 \
    typewriter.macro_type=1 \
    geometry="10%/20%:80%x60%:100%" \
    fgcolour=#ffffffff \
    bgcolour=#00000000 \
    family="Monospace" \
    size=36 \
    halign=center \
    valign=middle \
    pad=20 \
$*
