Hi all!
I'm working on a "Hello, World!" flow in GRC .... just a
simple NBFM receiver tuned to my local NOAA station.
So with the sampling rate set to 2M .... works fine .....
if I REDUCE the sample rate, say 240k, I start to get audio
sink underruns "aUaUaUaUaUaUaUaUaU" and I only get small
blurbs of audio.
I'm sure to set the sample rate in the downstream blocks
appropriately.
240k samples/sec should be plenty for a 5khz deviation FM
signal ... right??
This is completely counterintuitive to what I was
expecting. I thought by reducing the sample rate I would
lower CPU consumption ... and mitigate the exact problem I'm
experiencing at the lower rate.
What am I not grocking here??
Thanks,
--> Rob