Audio playback choppy and incorrect speed

[gonesurfing]

RTL-SDR on R-Pi3. No issues running, but per title the playback files are choppy. After some troubleshooting, seems something in the GR chain is off when sample rate is something other than 1Mhz. Playback is normal at this sample rate.

Choppy audio: ./ham2mon.py -a "rtl" -n3 -f 1465E5 -r 2000000 -g 20 -s -40 -v 20 -t 20 -w
Normal audio: ./ham2mon.py -a "rtl" -n3 -f 1465E5 -r 1000000 -g 20 -s -40 -v 20 -t 20 -w

I'm looking into it now, but didn't know if I was missing something obvious.