Why is what I'm saying not being transcribed correctly?
On Langua, we make two different transcription technologies available via the settings link/button in the AI conversation section.
The default 'V1' option is currently the best available technology. It understands even if you switch languages, and we've set it up so it'll usually translate what you've said into your target language.
However, it has one issue. If there is background noise or a long period of silence, it may occasionally hallucinate, adding words from its training data. This is why you may see a random sentence added. It's quite confusing when this happens!
Fortunately, this is quite rare for the majority of learners. You can avoid it by not speaking in a noisy environment, and pausing the recording if you are not ready to speak (if you have 'auto-record' on). You may also want to turn 'auto-send' off, so you can check the transcription before sending.
We do several things to reduce the frequency of this issue occurring, but we're waiting for the company that built this technology to address it in their next update, which will hopefully come very soon.
You can also try switching to the 'V2' transcription technology via the settings. This option is harder as it will only understand your target language, and will pick up on any mistakes. The advantages are that it transcribes each word as you speak, and never hallucinates.