Olivan Jesus, Kemp Bob, Roessen Marco
Clinical Neurophysiology Unit, Hospital Carlos III, c/Sinesio Delgado 10, Madrid 28029, Spain.
Sleep Med. 2004 Nov;5(6):601-3. doi: 10.1016/j.sleep.2004.07.010.
To specify a simple conversion of neurophysiological signals contained in sleep recordings into standard audio files and to illustrate how our cerebral audio processor can then detect specific signal characteristics.
A software package (freely accessible from the Internet) has been developed that converts signals from standard EDF (or EDF+) format to standard audio (WAV) format, a process usually called audification. The software has been applied to sleep EEG, EOG and ECG. The software is easy to apply.
A wide range of audified signals is described, stressing the analogy with familiar sounds. Audio properties of EEG in different sleep stages, EOG, ECG and respiration signals are discussed. Auditive presentation of the signals invokes brain processes that differ essentially from the commonly applied visual interpretation, including physiological frequency analysis.
Such auditive interpretation may complement the visual one. The widespread use of EDF+ and multimedia computers makes such audification simple and straightforward.
明确将睡眠记录中包含的神经生理信号简单转换为标准音频文件的方法，并说明我们的大脑音频处理器如何检测特定信号特征。
已开发出一个软件包（可从互联网免费获取），该软件包将标准EDF（或EDF+）格式的信号转换为标准音频（WAV）格式，此过程通常称为音频化。该软件已应用于睡眠脑电图、眼电图和心电图。该软件易于应用。
描述了广泛的音频化信号，强调了与熟悉声音的类比。讨论了不同睡眠阶段脑电图、眼电图、心电图和呼吸信号的音频特性。信号的听觉呈现引发的大脑过程与常用的视觉解读本质上不同，包括生理频率分析。
这种听觉解读可补充视觉解读。EDF+和多媒体计算机的广泛使用使这种音频化变得简单直接。
