ST2110OutputAudioSenderAdvanced.frameBufferSize property

Number of audio frame buffers MTL keeps in flight for this sender — a count, not a byte size. At 4 ms ptime each slot is ~768 bytes (PCM16 stereo), so going larger is cheap and absorbs more PS-side pacing jitter. Defaults to 8 (32 ms cushion at 4 ms ptime); MTL’s minimum of 2 is too small for realtime PS sources, drains the ring on any pacing dip and causes MTL to skip an epoch. An AM824 nonPcm sender keeps at least 100 ms of slots, whatever this says: each of its bursts is a whole compressed frame (up to ~42 ms) written at once.

Signature: