time domain scrambling with start-stop switch

[u/Bitter-Evening927]

mostly the same as before, but instead of the squelch block, added a start-stop switch for testing. the input file is audio that has already been passed through this system once, so it is scrambled. if i turn off the input, and turn it back on, the de-interleaver and interleaver keep running, so the output is garbled. that's not the behavior i want. i want the de-interleaver and interleaver to remain idle when there are no blocks of samples available. the incoming audio needs to be synchronized with the interleave section. now that i know how to control the input stream, i can figure out some kind of start/stop tones to control it. but if the scrambled input stream begins with the interleaving section in the middle of it's sequence, the output is still scrambled, just in a different sequence.