Audio drops out for a fraction of a second during complex passages. That's bit reservoir underflow. Some resellers configure adequate bit reservoirs. Most don't.
Here's the bit reservoir explanation. A British IPTV reseller 's encoder can allocate a bit reservoir (buffer) for audio. When audio gets complex (lots of instruments), the reservoir supplies extra bits. Without enough reservoir, audio drops out.
What actually works for dropout-free audio is adequate bit reservoir (recommended 5-10% of bitrate). Resellers who understand this have fewer audio complaints.
I had British IPTV audio dropouts during movie soundtracks (complex orchestral sections). Switched to a reseller with better encoder settings. Dropouts stopped.
The pattern that keeps showing up is that IPTV reseller UK operators who understand audio encoding details have fewer dropout complaints. Most just accept default encoder settings.
Honestly, if you experience audio dropouts, test the same content on another reseller's trial. If dropouts disappear, your current IPTV reseller UK has poor encoder settings.
That said, bit reservoir issues are rare with modern encoders. Default settings are usually fine.
In most cases, British IPTV audio dropouts indicate poor encoder configuration.