New code uncovered in audioOS 27 suggests Apple might be preparing HomePods for a full four-speaker surround sound setup. The evidence comes from beta files for second-generation HomePods, which include new tuning files and calibration settings that refer directly to front and rear left and right channel positions. According to the code, front units would perform normally while rear units generate omnidirectional sound and assist with system audio like Siri.
What’s Different in the Latest Beta
Among the additions in audioOS 27 beta 8 are references to speaker configuration files such as speaker_multichannel_movie_surround.austrip, indicating support for multi-channel movie audio through four speakers. There are also files like speaker_stereo_party_mode_on.austrip, suggesting a new “Party Mode” that spreads audio more evenly throughout a space rather than focusing it for one optimal listening position. These settings currently appear only for second-gen HomePods, but also mention an unreleased model—widely speculated to be a new HomePod mini due later in 2026.
How It Might Work
When properly set up, a system of four HomePods could block audio duties based on position: front speakers handling the main channel while rear speakers manage ambient sound and offer support for voice feedback and Siri responses. The code also includes special tuning for dialogue, bass management, dynamic range control, and separate handling for content encoded with spatial audio versus traditional stereo. In practice, this could bring HomePod setups closer to traditional 5.1 surround configurations—minus a central speaker.
As for timing, there’s no guarantee this functionality will ship with the final release of audioOS 27. Since some of the files refer to hardware not yet in the market, Apple may hold off until new HomePod models are released—especially the anticipated HomePod mini refresh—to enable full compatibility and deliver the feature smoothly.
For context, HomePod users have long requested more complete surround sound options. While stereo pairing has been fairly polished, it doesn’t replicate the immersive audio experience found in many home theater setups. With this change, Apple could be closing a gap in its smart speaker offering, challenging both higher-end ecosystems and more affordable multi-speaker solutions.
These beta files don’t guarantee anything—Apple may pull or alter features before release. But the coding evidence strongly points toward surround sound over four HomePods becoming a reality. What to watch for next: whether the new HomePod mini supports these configurations; how Apple handles calibration and spatial audio; and when the features roll out—will they ship in audioOS 27, or hold for hardware launches?
