Groups comparison
Covox Speech Thing SPU - 1988 to 1996
An extremely primitive & cheap dongle that plugged into a parallel port to provide 8-bit DAC digital sound output that was superior to the PC speaker.
Covox Sound Master - 1989 to 1996
Covox Voice Master SPU - 1989 to 1996
This is an ISA version of the Speech Thing that has similar ability but also DMA. Play back of sound stored on the card did not waste CPU bandwidth.
An extremely primitive & cheap dongle that plugged into a parallel port to provide 8-bit DAC digital sound output that was superior to the PC speaker.
Covox Sound Master - 1989 to 1996
Covox Voice Master SPU - 1989 to 1996
This is an ISA version of the Speech Thing that has similar ability but also DMA. Play back of sound stored on the card did not waste CPU bandwidth.
spu-cst
spu-csm
spu-cvm