With iOS 27 beta 3, users can now fine-tune how the new Siri AI sounds using separate controls for speaking pace and expressivity. During the WWDC26 keynote, Mike Rockwell, Apple’s vice president of Siri Engineering, previewed the new Siri and its ability to let users “customize Siri’s voice like never before,” including controls for expressivity and speaking pace. In iOS 27 betas 1 and 2, the Pace and Expressivity sliders under Settings > Siri > Voice were present but grayed out. 9to5Mac is the main source layer for now, and the rest should be read as a signal that is still widening. Changes like this often look small on screen while shifting product habits and day-to-day operating workflows much faster than expected.
What is happening now
With iOS 27 beta 3, users can now fine-tune how the new Siri AI sounds using separate controls for speaking pace and expressivity. 9to5Mac form the main source layer behind the core facts in this piece. This is still a developing thread, so the useful part is knowing which source signals are hardening and which ones still need caution. In software, the upgrades worth caring about are the ones that make workflows cleaner, reduce mistakes, and remove the need for extra tools.
Where the sources line up
9to5Mac is the main source layer for now, and the rest should be read as a signal that is still widening. During the WWDC26 keynote, Mike Rockwell, Apple’s vice president of Siri Engineering, previewed the new Siri and its ability to let users “customize Siri’s voice like never before,” including controls for expressivity and speaking pace. 9to5Mac form the main source layer behind the core facts in this piece.
The details worth keeping
In iOS 27 betas 1 and 2, the Pace and Expressivity sliders under Settings > Siri > Voice were present but grayed out. Changes like this often look small on screen while shifting product habits and day-to-day operating workflows much faster than expected. The people who feel the value first are often operators, editors, creators, and teams stitching multiple apps into one daily workflow. The next step is to see whether the current signals harden into a durable change or fade as a short-lived experiment.
Why this matters most
The signal is strong enough to deserve attention, but it still needs to be read as something developing rather than fully settled. With 1 source layers on the table, the part worth reading most closely is where firm facts meet the market's early reaction. With iOS 27 beta 3 , released earlier today, both controls are now active, offering five adjustment levels for each of the two currently available voices.
What to watch next
The next thing to watch is rollout speed, regional limits, and whether the update really changes day-to-day habits. Patrick Tech Media will keep checking rollout speed, user reaction, and how 9to5Mac update the next pieces. From 1 early signals, the piece keeps 1 references that are useful for locking the main details in place. That is why the useful reading move is not to stop at the headline, but to compare the promise, the workflow change, and the likely cost before deciding anything.