There does appear to be an audio problem with 1189.
On my build, when I turn the SDR# audio level slide-bar right up, the audio cuts out completely.
Turn the level down to three quarters and the audio is there, but breaks up (choppy).
Turn the level down to halfway and the audio is fine.
Noticed this the other day. Previous versions didn't suffer this problem.
Initially, I had the volume at two thirds and it sounded like the FM squelch was cutting out due to over deviating signals, regardless of the IF bandwidth.
I'm sure there will be a fix soon