SpeechAnalyzer Framework

Use the API surface in the project’s installed SDK. This guide is compatibility-first for the stable Xcode 26.6 / iOS 26.5 SDK and does not substitute later beta conveniences into a 26-target implementation.

Compatibility baseline

• SpeechAnalyzer, SpeechTranscriber, AssetInventory, and AnalyzerInput require iOS 26, macOS 26, visionOS 26, or tvOS 26. They are unavailable on watchOS.
• DictationTranscriber is available on iOS 26, macOS 26, and visionOS 26, but not tvOS/watchOS.
• Build these APIs with Xcode 26 or newer. A lower deployment target requires an availability gate and a legacy or disabled-feature path.
• SpeechTranscriber.isAvailable is hardware-sensitive. An OS version check alone is insufficient.
• The live microphone example is iOS-only because it configures AVAudioSession and requests record permission.
• If an SDK 27 beta offers helpers such as capture/input providers or converter types, keep those declarations in a beta-SDK-only source path, add the relevant #available(iOS 27, macOS 27, ...) runtime gate, and retain the 26 implementation. A stable 26 compiler cannot resolve an unknown symbol merely because it appears inside #available.

Do not hardcode a language count. Query locale support on the running device.

Stable setup sequence