SayWhen: An automated method for high-accuracy speech onset detection |
| |
Authors: | Peter A. Jansen Scott Watter |
| |
Affiliation: | Department of Psychology, Neurosciences and Behaviour, McMaster University, Hamilton, Ontario, Canada. jansenpa@mcmaster.ca |
| |
Abstract: | Many researchers across many experimental domains utilize the latency of spoken responses as a dependent measure. These measurements are typically made using a voice key, an electronic device that monitors the amplitude of a voice signal, and detects when a predetermined threshold is crossed. Unfortunately, voice keys have been repeatedly shown to be alarmingly errorful and biased in accurately detecting speech onset latencies. We present SayWhen--an easy-to-use software system for offline speech onset latency measurement that (1) automatically detects speech onset latencies with high accuracy, well beyond voice key performance, (2) automatically detects and flags a subset of trials most likely to have mismeasured onsets, for optional manual checking, and (3) implements a graphical user interface that greatly speeds and facilitates the checking and correction of this flagged subset of trials. This automatic-plus-selective-checking method approaches the gold standard performance of full manual coding in a small fraction of the time. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|