When speaking to infants, adults often produce speech that differs systematically from that
directed to other adults. To quantify the acoustic properties of this speech style across a wide …

Purpose: This scoping review considers the acoustic features of a clear speech register
directed to nonnative listeners known as foreigner-directed speech (FDS). We identify vowel …

There have been many studies examining the differences between infant-directed speech
(IDS) and adult-directed speech (ADS). However, investigations asking whether mothers …

Speech units are reported to be hyperarticulated in both infant-directed speech (IDS) and
Lombard speech. Since these two registers have typically been studied separately, it is …

Infant‐directed speech (IDS) is phonetically distinct from adult‐directed speech (ADS): It is
typically considered to have special prosody—like higher pitch and slower speaking rates …

Understanding the challenges faced by second language (L2) learners in lexical tone
perception is crucial for effective language acquisition. This study investigates the impact of …

The speech register that adults especially caregivers use when interacting with infants and
toddlers, that is, infant‐directed speech (IDS) or baby talk, has been reported to facilitate …

Purpose A large body of literature has indicated vowel space area expansion in infant-
directed (ID) speech compared with adult-directed (AD) speech, which may promote …

This study examines whether non-tone language listeners can acquire lexical tone
categories distributionally and whether attention in the training phase modulates the effect of …

The functions of acoustic-phonetic modifications in infant-directed speech (IDS) remain a
question: do they specifically serve to facilitate language learning via enhanced phonemic …