Some people are of the opinion that kernel developers will help fix the problem but I think this is pure fantasy. From what little I know the real answer would be to write serial drivers in userspace. This might make it possible to use PCI serial cards. Serial synths are a dying breed anyway. Get used to espeak. I don't have anywhere near the knowledge to do this and too old to learn all I would need to know. So if you are capable of fixing speakup we will all be eternally greatful!