What is it about?
In Italian, the length of a consonant can completely change the meaning of a word, so you could easily mix up Papa (“Pope”) and pappa (“mush”) (see picture below). Italian uses this contrast in more than 1,800 words, making consonant length an important part of the language. But do learners from different language backgrounds hear these differences in the same way? To find out, we tested 104 learners of Italian with Finnish, Czech, Slovak, German and Spanish as their first languages, together with Italian native speakers as a control group. They listened to invented Italian words such as sàpolo–sàppolo, which allowed us to test perception without participants relying on words they already knew. The answer was clear: our first language shapes what we hear. Finnish learners, whose language uses both long and short consonants and vowels, were particularly sensitive to Italian consonant length. Czech and Slovak learners also performed relatively well, even though their languages use only vowel length. German and Spanish learners were even less native-like, as these languages have no or only limited length contrasts. But the story is more complex: the type of consonant, its position in the word, and even the way the task was presented also mattered. For example, Spanish learners were particularly good with Italian r sounds, possibly because Spanish already distinguishes "pero" (Engl. but) from "perro" (Engl. dog). Our first language is only part of the story. How we learn, how much contact we have with the language, and our individual linguistic experiences and skills also matter. Learning to hear a new language is therefore a dynamic process – shaped by where we start, but also by what we experience along the way. References Pešková, Andrea (2026): “Identification of Consonant Length in L2 Italian: The Role of Cross-Linguistic Influence.” Frontiers in Language Sciences 5:1911194. doi: 10.3389/flang.2026.1911194. Pešková, Andrea & Kateřina Chládková (2026): “A cross-language comparison of length perception in Italian-learning adults.” Language and Speech. doi: 10.1177/00238309261440514.
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Why is it important?
The findings highlight the important role of speech perception in language learning: learning to speak a new language also means learning to hear it in a new way.
Perspectives
What I find most fascinating is that something as simple as duration – how long a sound lasts – can reveal so much about how our languages shape the way we listen. Working with learners from five different language backgrounds has shown me once again that there is no single path to learning a new language: every learner brings a different linguistic history to the task.
Dr. Andrea Peskova
Freie Universitat Berlin
Read the Original
This page is a summary of: A Cross-Language Comparison of Length Perception in Italian-Learning Adults, Language and Speech, May 2026, SAGE Publications,
DOI: 10.1177/00238309261440514.
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