AI 中文总结
本研究提出一种基于闭塞的检测器，用于跨六个西班牙语语料库计数颤音/r/的闭塞次数，发现中位数为两次且闭塞间周期约36毫秒，音位配列语境是唯一稳健影响因素，并发布可复现测量流程。
AI 中文摘要
西班牙语颤音/r/被经典地描述为一系列短暂的舌闭塞，然而跨语料库的大规模声学证据稀缺，且自动计数器定位包络峰值时往往将每次闭塞与其释放相混淆。我们提出了一种基于闭塞的检测器，该检测器通过质量过滤器门控定位闭塞，并与独立的基于自相关的周期估计器进行交叉验证。将该检测器应用于来自六个西班牙语语料库中356位说话者的3,560个结构良好（浊音、周期性）的颤音样本，检测器得出闭塞中位数为两次，闭塞间周期接近36毫秒，与所有语料库的描述性文献一致。在说话者层面，音位配列语境是唯一具有稳健中等效应的因素：词首颤音（词首及/n,l,s/之后）比元音间rr表现出更多闭塞。我们未发现直接计数闭塞后性别效应的稳健证据。我们报告了参考值，并发布了用于西班牙语颤音的可复现测量流程。
英文摘要
The Spanish trill /r/ is canonically described as a short sequence of lingual closures, yet large-scale acoustic evidence across corpora is scarce, and automatic counters locating envelope peaks tend to conflate each closure with its release. We present a closure-based detector that locates closures gated by a quality filter and cross-checked against an independent autocorrelation-based period estimator. Applied to 3,560 well-formed (voiced, periodic) trill tokens from 356 speakers across six Spanish corpora, the detector yields a median of two closures and an inter-closure period near 36ms, matching the descriptive literature on all corpora. At the speaker level, phonotactic context is the only factor with a robust, medium effect: onset trills (word-initial and post-/n,l,s/) show more closures than intervocalic rr. We find no robust evidence of a sex effect once closures are counted directly. We report reference values and release a reproducible measurement pipeline for Spanish trills.
CommentsAccepted to IberSPEECH 2026
