OT email me privately if you can help. Hello, Just got a USB to serial adaptor. I installed the driver for it earlier, and I plugged it into my laptop. The first thing I did was go into /dev and looked for an object. Found tty.usbserial-FTKVMAFF When I went to test my doubletalk with the echo command I couldn't get my doubletalk to talk. I tried redirecting echo to the object above also tried /dev/ttys0 with no luck. I was told on a mailing list that even though a user couldn't get there synthesizer to work with echo it worked with there screen reader. So I tested it with yasr my screen reader. Couldn't get my doubletalk to talk. The only thing I can think to do would be to edit the yasr screen reader configuration file to say instead of synthesizer port=s0 Change it to say synthesizer port=tty.usbserial-FTKVMAFF But don't know if this would work. Sent from my iPhone