Updated October 4, 2026: Spanish is no longer a test build. It shipped in version 1.0.1, and all six supported games can be played in Spanish: you pick the language with the EN / ES buttons on the game selector. The numbers below are from that first internal test, before the release.
Before I said a single command out loud, I found a bug that would have made the Spanish build practically unusable.
The bug that almost slipped through before any voice test
Every word with an accent mark — á, é, í, ó, ú, ñ — was silently stripped from the command list before recognition even started. In English that bug is invisible, because English barely uses accent marks.
In Spanish, it would have silently broken almost every command that needed one.
I fixed it before running a single voice test. This is exactly why I check for problems like this first: a good accuracy number means nothing if half the commands never loaded correctly to begin with.
What I actually tested
With that fixed, I ran the same kind of test I run for every language and every game. I said every command in the full list out loud, several times each, and checked two things:
- Did it recognize the right command?
- Did it ever reject something it should have understood?
The result: 98.2% accuracy against the English version, and not a single command marked as unrecognized.
That number will change as we add more languages and more games — it's a snapshot from the first real test, not a permanent promise. But it shows the same closed-grammar approach works outside English too, which was exactly what I needed to check before saying so in public.
Why this is a business question, not just a technical one
A 98.2% doesn't answer on its own whether it's worth opening up a new language. What it does answer is the question that actually mattered going in: does the engine break once you step outside English, or does it hold up. It holds up. That turns "should we translate EchoControl into Spanish" into a decision about who to sell to and when, not a technical experiment with an uncertain outcome. And we made it: Spanish shipped in version 1.0.1.
The accent-mark bug wasn't a minor footnote either. If it had slipped through unnoticed, the first Spanish accuracy number would have come out low for a reason that had nothing to do with speech recognition — and that kind of failure, the one that makes a technology that actually works look worse than it is, is the hardest to catch after it ships.
Try EchoControl — it recognizes your game's commands in English and in Spanish.