A tram-depot wayfinding booth keeps hearing “car barn” as “carbon.” Staff can add a small site vocabulary on Riva ASR or leave the stock model. When is a customization experiment justified?
Select an answer to reveal the explanation.
Short Explanation
If the booth keeps mangling the same local phrase, teach Riva that phrase — do not rebuild the whole ear from scratch. Vocabulary customization is the right small experiment.
Full Explanation
Repeated domain-term errors justify a Riva ASR vocabulary customization experiment rather than full acoustic retraining. The stock model can stay for general speech while site words are added. Chatbot swaps or unrelated image generation do not address the recognizer’s domain-vocabulary gap.