- per-airport ATIS loop keyed by station with a virtual start epoch, so
re-tuning resumes where the broadcast would be instead of restarting
- refetch airport data at :23/:53 to follow VATSIM ATIS regeneration from
real-world METAR publication, with faster retries while no ATIS is on
the feed; prefetch audio when the info letter changes
- support separate arrival/departure ATIS stations on different frequencies
- cancel the deferred audio teardown on retune so a fresh broadcast is not
killed by the previous stop()'s fade-out timer (atisAudioLoop)
- comm log shows newest entries first
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Tuning to the ATIS frequency now plays carrier noise immediately so the
pilot gets feedback before the TTS comes back (synthesis takes a moment
on cold cache). When the ATIS audio is ready, the carrier ducks down to
a subtle bed level and stays underneath the announcement — mimicking
how a real radio channel always carries some noise floor.
Switches the loop from HTMLAudioElement (whose seek on data: URLs gets
quantized by some browsers) to a Web-Audio AudioBufferSourceNode.
`source.start(0, offset)` is sample-accurate per spec, so the
virtual-clock entry point lands exactly where computed. `window.__atisDebug`
exposes ctx/source/state for manual inspection, and pm.vue logs the
requestedOffset/duration/epochAge on each loop start.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
