Installing Voxin in Debian gives Voxin in the console.
Voxin + IBM TTS 4.19 EUR
Voxin + Vocalizer Embedded, Compact 22.1 EUR
Voxin + Vocalizer Embedded, Pro 26 EUR
Voxin + Vocalizer Embedded, High 29.91 EUR
Unfortunately, it's not yet possible to have Voxin Eloquence engine inside emacspeak the audio desktop, but I understand this is being worked on.
It IS possible to use the Voxin IBMTTS - the old IBM Voxin voices inside emacspeak, so often I just use spd-conf to configure the old IBMTTS voice and use Voxin Eloguence Zoe ML in terminal under MATE using ORCA.
Rgds,
David