PSK31 and RTTY with Rocky and SDR
- Hi All,
I sent the following to Jim Perkins in response to a question he posted
Perhaps others are interested in my solution---
I don't recall seeing any responses to your question about using PSK and
RTTY with Rocky.
Perhaps you need to check out Virtual Audio Cable. I have used it with
Rocky and Digipan, using a single sound card. The way it works is:
1) Select your default Sound Card for Rocky's input.
2) Select "Virtual Cable 1" for the output of Rocky.
3) Select "Virtual Cable 1" for the input to Digipan.
4) Select your default Sound Card for the output of Digipan.
Virtual Audio Cable installs as another audio device. It acts as a
"pipe" to take digital audio data from one program and feed it into
another program. In fact, the output of the "pipe" can be sent
simultaneously to several programs (e.g. oscilloscope, spectrum
analyzer, DSP filter...). The free download limits you to two "Virtual
Cables" and superimposes a weak audio signal on the output that
periodically repeats the word "Trial". The paid version increases the
number of virtual cables to 16, and eliminates the background voice.
I have tested the setup with a few different software programs for
decoding the output of Rocky and the SDR. For example, I have used
CWGET to decode cw from Rocky. I tested this with the built-in AC97
card on my Dell Desktop, and with a SoundBlaster Live-External on a
Compaq Laptop. Any program that allows you to chose the audio input and
output devices can be used with Virtual Audio Cable.
What you want to do, can be done with a single soundcard!
If you have additional questions about my setup, send me an email.