Wednesday, 26 June 2013

Dial Tone Example

The simplest example is the dial_tone example in which you will be listening a dial tone from the sound card.

 
$ cd /usr/share/gnuradio/examples/audio
$ ./dial_tone.py
 
The Block diagram of Dial tone is as follow


To view the code behind dial_tone block
 
$ cd /usr/share/gnuradio/examples/audio
$ gedit dial_tone.py
 
It will open code for the dial_tone. You can understand the basic flow by viewing the commented code.

The Basic objective of this block is:
 
  • Setting up sinewaves at 350 and 440Hz
  • Create singal generating blocks
  • Defining destination
  • Connecting source and destinations

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