Hello Julian - It is unclear as to what is not working for you, so it is
kind of hard to suggest improvements.
In situations like these it is important to have a test signal to 'play
around with' so you can study and understand the issues more fully.
I would either,
1) Record one or more sample signals for later playback into your
processing flowgraph.
or
2) Make a flowgraph that generates a test signal that you can then pass
into your signal processing flowgraph.
Then you can play the test signals and go block by block of your signal
processing flowgraph to understand what is going on.
Hope this helps
Steve Hageman
