How to Dictate a Bilingual Document Without Switching Settings

If you write in two languages, you already know the pain: dictate a sentence in Spanish, then open System Settings to switch the input language, then dictate in English, then switch back. This guide shows how to dictate a bilingual document without touching settings at all, using on-device voice to text on your Mac.

Why bilingual dictation is usually so painful

Built-in Mac dictation is designed around a single input language. You pick one language in System Settings, and everything you say is transcribed against that language model. That is fine if you only ever write in English. The moment you need to quote a client in French, drop a Spanish idiom into an English email, or draft a paragraph in your native language before switching back, you hit a wall. Apple's own dictation guide confirms the workflow revolves around a selected language, which means real bilingual writing turns into a stream of menu visits.

The fix is not a faster keyboard shortcut for changing settings. The fix is an app that never asks you which language you are about to speak. If dictation detects the language from the audio itself, the whole problem disappears. That is the core difference this guide is built on, and it is why the approach below works in any app, from Pages to Slack to your code editor.

The two approaches, compared

The table makes the trade-off clear. Cloud tools can juggle languages, but they send your voice to a server. Apple Dictation keeps things local-ish but makes you babysit the language setting. BlaBlaType sits in the useful corner: it detects the language you speak, runs 100% on-device with local Whisper and Parakeet models, and works system-wide. For a broader ranking of options, see our roundup of the best dictation software for Mac in 2026.

How to dictate a bilingual document, step by step

Because dictation is far quicker than typing for most people (most people speak around three to four times faster than they type), a bilingual draft that used to mean constant context switching now flows in one sitting. If you want the same rhythm for other jobs, the same shortcut works when you dictate emails on your Mac or turn an idea into a full blog draft.

What the mixed draft actually looks like

Raw bilingual speech is messy: false starts, missing punctuation, and the odd word carried over from the wrong language. The value of on-device AI cleanup is that it tidies each language separately, so the final text does not look like two half-finished drafts stitched together.

Notice that the cleanup kept both languages intact, added sentence breaks in each, and dropped the filler words. A custom dictionary handles names and jargon that recognition might otherwise mangle, which matters a lot when you mix languages and proper nouns. To understand why all of this runs locally, the concept of words per minute and typing speed is a useful primer, and Wikipedia's words-per-minute overview puts the speech-versus-typing gap in context.

When you want one language instead of two

Sometimes the goal is a bilingual thinking process but a single-language result: you brainstorm out loud in your first language, but the document has to ship in English. For that, optional translate-as-you-speak turns your spoken words into the target language as they appear, so the file stays consistent even though your head switched back and forth. It is the mirror image of the workflow above, and it uses the same shortcut. Either way, you are choosing how the text lands rather than fighting a menu, and you can compare pricing for the Pro features on the plans page.