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How should I go about recording analog signals from a device attached to a serial port, so I can re-send them, and can I even do this...
The purpose of this is to record all signals from the buttons on a telephone so that once I have them all I can emulate a telephone from my pc...
try finding api calls to your device and ref them in VB.net
You can't record analog signals directly through the serial port - the serial port deals with digital data.
If your telephone has tone dialling then just record the audio signals and play them back through the PC's speaker. I guess you'd have to use an acoustic modem to link yourself up to the phone line. http://en.wikipedia.org/wiki/Acoustic_coupler
Thanks, yes my local teleephone network does use tone dialing...
Is it really as simple as just recording the sounds and sending them as is?
My pnone lines only work with two wires, so how can I detect and receive input from the phone line? I guess I would have to use the audio in port, but if they only have two wires it leaves me in a place of confusion, as I cant send through the audio in port, and I cant receive through the audio out port???
At this stage Im not worried about what will happen when my system makes an alert beep or anything, I just want to get it working...
Any more advice would be greatly appreciated. Thanks
Basicaly my problem now is to be able to retreive audio and send audio with only two wires, im quite lost on how to do this, getting audio from the audio in port is easy, so is sending the audio through the audio out port, but doing both with only two wires, thats what is troubling me...
I see that the problem now is quite different from the thread subject, so I will post a new thread, titled, "How to send and receive audio through 2 wires"
The easiest way, like I was suggesting before, is to hold a telephone handset up against your PC's microphone and speaker.