Hi all,
1. I select the output of the signal source as bytes, and the time plot of it is attached. As you can see, the plot looks like bursts. But if I add an audio sink after signal source directly, I hear a constant tone. This does not make sense to me, as I
thought I should hear discontinuous sound as the plot shows, could someone explain this?
2. With the first question being said, I am using a constellation modulator (QPSK) that takes 2 bits/symbol.
How can I feed the output of signal source ( a 16-bit audio file later on) to the constellation modulator properly?
Thanks in advance!
Regards,
Lannan Jiang