what do you think about this InfraRed Adapter
Is it possible to use such a device with Blackstone ???
I just found this one ... click.
If you like to DIY , look here.
As I can see e need this Sound-to-IR adapter from Griffin Technologies!!!
Their product Total Remote 5001-RMT /which is discontinued btw/ is ONLY transmitter. Anyway it uses software with big list of supported devices.