Sample report

“vou pegar o ônibus mais tarde”

Finding

The Brazilian Portuguese pronunciation becomes noticeably Anglicised across the final clause. The vowels in mais tarde carry English stress and would feel unnatural to a Brazilian listener.

Listener impact

A beginner may absorb the Anglicised vowel pattern as the correct model, learning an accent no Brazilian speaker would use.

Likely cause

The model appears to follow English phonetic stress after the code-switch and does not fully return to the Portuguese register.

Suggested correction

Regenerate the clause separately using the original PT-BR reference voice, with phonetic guidance for the affected phrase.

“café”

Finding

The stress in café shifts across the chapter. Here the model stresses the first syllable, contradicting the correct final-syllable stress taught earlier in the same lesson.

Listener impact

Inconsistent stress on a high-frequency word teaches two conflicting patterns and undermines learner confidence.

Likely cause

Stress varies across regenerated segments; no fixed pronunciation reference was pinned for recurring vocabulary.

Suggested correction

Pin a pronunciation reference for recurring vocabulary and regenerate the affected line to match the earlier lesson.

“o mercado / the market”

Finding

At the switch from Portuguese to the English gloss, the voice changes timbre and apparent age, so the market sounds like a different narrator from the Portuguese line.

Listener impact

The seam breaks the illusion of a single teacher at the exact moment the translation should reinforce meaning.

Likely cause

The English gloss was likely regenerated in a separate pass without matching the Portuguese voice brief.

Suggested correction

Regenerate the English gloss in the same pass and voice brief as the Portuguese line to preserve one narrator.

“repita comigo: bom dia”

Finding

The pause after the prompt repita comigo is too short for a beginner to respond before the narrator speaks the phrase.

Listener impact

Learners cannot complete the repetition, reducing an interactive exercise to passive listening.

Likely cause

Default inter-sentence spacing was applied to an interactive prompt that needs a longer, deliberate gap.

Suggested correction

Insert a two to three second pause after interactive prompts so beginners have time to respond.

“ônibus”

Finding

The chapter uses ônibus throughout, which suits the São Paulo register in the brief. No change needed; noted for continuity.

Listener impact

None for this chapter. Flagged so later chapters keep the same regional vocabulary.

Likely cause

Consistent with the voice brief.

Suggested correction

Maintain ônibus across the series for regional consistency.