Re: [Discuss-gnuradio] gr-atsc progress

[Eric Blossom]

On Wed, Apr 25, 2007 at 11:02:13AM -0400, Chuck Swiger wrote:
> The 2.x gr-atsc seems to be closer to working, at least the flow control
> (forecast,consume,etc) creates the exact to-the-byte correct quantity of
> output with no loss of sync (since it keys on easy to discern -5/+5), on
> 120MB size output files.
> 
> However the *quality* of the output is only about 65 percent correct,
> which is not suprising if you compare the output of a working (0.9)
> equalizer:
> 
> http://musicriver.homeunix.com:8737/eq-out_working.jpg
> 
> to a non-working all 2.x equalizer:
> 
> http://musicriver.homeunix.com:8737/eq-out_non-working.jpg
> 
> 
> Any hints or wild guesses from the atsc experts on where to look? It
> must be something with the bit_timing_loop or the equalizer but it is
> largely just copied from the 0.9 stuff.
> 
> --Chuck

Did you port the "right" bit timing loop?

As I recall, I tried 2 or 3 different approaches.  Without checking
the old code, I'm not sure which one I ended up using.

Eric