I saw an interesting schematic to use a cut off casette-tape head to read the magnetic stripes on credit cards. I wonder if the reverse could be done-- using t

I saw an interesting schematic to use a cut off casette-tape head to read the magnetic stripes on credit cards. I wonder if the reverse could be done-- using the heads that are still (likely) in production for use in card readers, then using some DSP magic to reconstruct a decent audio product?