good

.env.example

@@ -73,11 +73,13 @@ FILLER_GAIN_IDLE=1.0
 FILLER_GAIN_DUCK=0.15
 # TTS jitter buffer (ms): how much synthesized audio the mixer buffers before it
 # starts playing the reply. Lower values start speaking sooner; higher values
-# absorb uneven TTS chunk arrival at the cost of added latency. Drama-3 delivers
-# ~1.08x real time in bursts every ~2.7s, so raising this reduces drop-outs on
-# long replies. Mid-reply underruns resume as soon as any audio is queued again
-# (no full refill).
-TTS_PREBUFFER_MS=900
+# absorb uneven TTS chunk arrival at the cost of added latency. Drama-3's vocoder
+# emits audio in windows of `stream_followup_stride` codec frames (2048 samples =
+# 46.4 ms each); with the recommended server setting (stride 16, ramp
+# "[10,12,16]") the first window is 10 frames = 0.464 s, so 450 ms starts
+# playback on that very first window. Mid-reply underruns resume as soon as any
+# audio is queued again (no full refill).
+TTS_PREBUFFER_MS=450
 # Number of TTS requests kept in flight at once. Reply chunks are synthesized
 # ahead of playback (and replayed in order) so each request's start-up latency
 # hides behind the previous chunk's audio instead of leaving an audible gap.