Guides

Answers to the questions people ask about AirPlay delay on a Mac.

• How to reduce AirPlay latency on a Mac: Every way to cut the delay when your Mac plays through AirPlay, compared: app-level AirPlay, screen mirroring, Terminal, Preroll and Lagless.
• Why is AirPlay delayed on a Mac?: macOS sends system audio to AirPlay speakers 2000 ms ahead of time. Here is where that number comes from, why the speaker doesn't need it, and how to lower it.
• HomePod delay on Mac, and how to fix it: Why a HomePod or HomePod mini plays your Mac's sound about two seconds late, the workarounds people use, and the setting that actually removes most of the delay.
• Using a HomePod as a Mac speaker: What to expect when you use a HomePod or HomePod mini as your Mac's speaker, from sound quality to the two-second delay, and how to make it usable for video and games.
• AirPlay audio out of sync with video on a Mac: Why video and sound drift apart when your Mac plays through an AirPlay speaker, which apps compensate, and how to bring system audio back in sync.
• AirPlay latency for gaming on a Mac: Is AirPlay usable for gaming from a Mac? How much delay to expect by default, how low it can go, and the settings that keep game audio as close to the action as possible.
• Why AirPlay goes silent at 250 ms: Set macOS's AirPlay latency to 250 ms and your speaker plays nothing. The AirPlay log explains why, and why 350 ms is the lowest value that works.
• audioLatencyMs, the hidden macOS AirPlay latency setting: What the undocumented com.apple.airplay audioLatencyMs preference does, where macOS reads it, how to set and remove it in Terminal, and what to watch out for.
• Why the start of sounds gets cut off on AirPlay: Short alerts and the first moment of audio can arrive late or clipped over AirPlay from a Mac. It's the stream going to sleep during silence. Here's how to keep it awake.
• HomePod latency on macOS 27: Reports say HomePods on macOS 27 use a new buffered AirPlay engine at about 200 ms. What that means, which speakers still sit at 2000 ms, and whether you still need Lagless.
• Stereo-paired HomePods on a Mac: What to expect when you use two HomePods or HomePod minis as a stereo pair for your Mac, from dropouts to delay, and what helps.
• Sonos AirPlay delay from a Mac: Why a Sonos speaker plays your Mac's sound about two seconds late over AirPlay, why some models are reported to be much worse, and how to lower it.
• How to restore Apple's default AirPlay latency: Undo an audioLatencyMs change and put macOS back to its standard 2000 ms AirPlay buffer, with Lagless or in Terminal.