英国 Laryngograph 电子声门仪 EGG-D200

丹麦哥本哈根完整发声学院

地区：丹麦

署名作者：马蒂亚斯·奥恩

研究方向：嗓音、言语、歌唱、元音

关联论文 1 篇

美国哥伦比亚大学

地区：美国

署名作者：陈成钧

研究方向：嗓音、言语、歌唱、元音

关联论文 1 篇

佛罗里达大学

地区：美国

署名作者：马修·马萨波洛、凯伦·W·赫格兰

研究方向：电磁发音仪、电声门图、言语运动学、信号干扰

关联论文 1 篇

电磁发音仪（EMA）与电声门仪（EGG）同步采集的交叉干扰验证实验

方法说明：该实验检验在采集言语运动学数据时，电磁发音仪（EMA）与电声门仪（EGG）之间是否存在交叉干扰。实验1A和1B在EGG电极不在EMA磁场内、EGG电极在磁场内但设备关闭、EGG电极在磁场内且通电三种条件下对EMA传感器进行标定；实验2使用AG501 EMA系统记录一名男性与一名女性说话人的唇、舌、下颌运动，并分别在有和无同步EGG记录的条件下进行比较。EGG信号与音频通过独立于AG501系统的Laryngograph EGG-D200微处理器和icSpeech Professional Edition软件同步记录。结果未发现任何方向的信号伪迹，表明EMA与EGG技术可以联合使用以可靠评估言语中喉部与喉上运动协调。

实验仪器：电声门仪/喉头仪 EGG-D200；电磁发音仪 AG501；言语分析软件 icSpeech Professional Edition

实验步骤

1. 设备准备与电极安放

   说明：准备Carstens AG501电磁发音仪与Laryngograph EGG-D200电声门仪，将EGG的两枚电极置于甲状软骨两侧颈部皮肤上，并按需要连接icSpeech Professional Edition软件。

   关键点：EGG电极需置于喉部甲状软骨两侧；EGG硬件与软件独立于EMA系统运行

2. 实验1A/1B：不同EGG条件下的EMA传感器标定

   说明：在EGG电极不在EMA磁场内（EGG ABS）、EGG电极在磁场内但设备关闭（EGG OFF）、EGG电极在磁场内并向电极供电（EGG ON）三种条件下分别对EMA传感器进行标定，比较标定结果。

   关键点：三种条件的标定误差对比是判断EGG是否干扰EMA的核心依据

3. 实验2：有无EGG同步记录下的言语运动学采集

   说明：一名男性与一名女性说话人佩戴EMA传感器，在有和无同步EGG记录两种条件下产出言语材料，AG501以250 Hz采样率跟踪唇、舌、下颌传感器，EGG信号和音频由EGG-D200与icSpeech软件同步记录。

   关键点：对比两种条件下的运动轨迹与EGG波形，检查是否出现信号伪迹

4. 数据处理与伪迹分析

   说明：对标定数据、传感器运动轨迹以及EGG波形进行对比分析，评估EMA磁场对EGG信号以及EGG电流对EMA传感器位置估计的影响。

   关键点：双向检查：EMA对EGG的干扰与EGG对EMA的干扰

实验数据

方法关联论文：电磁发音仪与电声门仪之间干扰问题的研究

声学信号与EGG信号同步采集下的基音同步共振峰测量实验

方法说明：该实验提出并验证一种基音同步的共振峰测量方法。使用Laryngograph D200电声门仪同步采集歌手发持续元音时的EGG信号，同时以DPA 4007麦克风在距口部25 cm的固定距离、通过Metric Halo录音接口以48 kHz、16 bit分辨率采集声学信号。利用EGG信号确定的声门闭合时刻将78条持续元音录音切分为4730个单个基音周期，对每个周期的波形做傅里叶分析得到幅度谱，并从中提取每个共振峰的中心频率、电平和带宽三个参数；再用所得共振峰重建语音波形并与原始波形比较，同时对多个周期的谱进行平均以降低噪声并估计标准差。结果表明逐周期测量共振峰可得到准确、完整且可重复的结果，方法适用于语音与歌唱的实时分析。

实验仪器：电声门仪/喉头仪 D200；测量级电容麦克风 4007；录音接口

实验步骤

1. 同步录音装置搭建

   说明：将Laryngograph D200的电极置于受试者颈部甲状软骨两侧记录EGG信号；DPA 4007麦克风固定于距歌手口部25 cm处，经Metric Halo录音接口以48 kHz、16 bit同步记录声学信号。

   关键点：EGG与音频严格同步；麦克风距离恒定以保证电平可比

2. 持续元音录音采集

   说明：受试歌手发出持续元音，共获得78条带有同步EGG信号的录音样本。

   关键点：保持发声稳定，覆盖不同元音与音高

3. 基于EGG的基音周期切分

   说明：利用EGG信号确定的声门闭合时刻，将每条录音切分为单个基音周期，共得到4730个周期片段。

   关键点：EGG提供的声门闭合时刻是基音同步切分的依据

4. 逐周期傅里叶分析与共振峰提取

   说明：对每个基音周期的波形做傅里叶分析得到幅度谱，从谱中提取各共振峰的中心频率、电平和带宽。

   关键点：每个共振峰用三个参数完整描述，不依赖预设的LPC阶数

5. 波形重建与谱平均验证

   说明：用提取的共振峰参数重新生成语音波形并与原始波形比较；对多个周期的谱进行平均以降噪并估计标准差，评估方法的重复性。

   关键点：重建波形与原波形高度相似即验证方法的完整性与准确性

实验数据

方法关联论文：共振峰的基音同步研究

电磁发音仪与电声门仪之间干扰问题的研究

原文题名：An investigation of interference between electromagnetic articulography and electroglottography

发表年份：2022

作者：马修·马萨波洛；拉特里·韦兰；杰西卡·戈尔；拉胡尔·森古普塔；艾伦·沙姆西；凯伦·W·赫格兰

刊源：JASA Express Letters

Larynograph

简介：I'm David Howard from york and we're company at the Dance center in London to look at B-boxing Let's look briefly at what the human instrument offers to the B-boxer because the human vocal instrument is the same for all of us We've all got what is basically a buzzer sounding something like this in our throat This is the vibrating vocal folds in the larynx so this can substitute for the larynx.

发布时间：2020-02-19T07:15:59Z

VOICED-UNVOICED CLASSIFICATION OF SPEECH USING AUTOCORRELATION MATRIX

简介：In this paper, a fast method for voiced-unvoiced classification of speech signals is introduced. The suggested method makes the V-UV decision, using signal energy, the peak-to-peak differerence of the autocorrelation function, number of zero crossings of the autocorrelation function and the unit delay autocorrelation coefficient all together.

发布时间：2020-02-11T07:12:57Z

Voice Timing in Two Parkinson’s Disease (PD) Patients following Subthalamic Nucleus Deep Brain Stimulation

简介：Speech and voice can have a variable response (Tripoliti et al, 2014). Subtypes of presentation have been proposed (Tsuboi et al, 2014). This study sought to examine the effects of STN-DBS on the temporal prosodic structure of voicing in the connected speech of two STN-DBS patients with contrasting presentations.

发布时间：2020-02-11T06:48:20Z

The Effect of Hearing Loss on the Vocal Features of Children

简介：The current study aimed to evaluate the effect of hearing loss on acoustic properties of voice through acoustic analysis of some vocal parameters in two groups of children with moderately severe or deep hearing loss, and normal children of the same age and gender.

发布时间：2020-02-11T06:22:23Z

REAL-TIME SPEECH PATTERN ELEMENT DISPLAYS FOR INTERACTIVE THERAPY

简介：New developments are presented and discussed for the interactive display and separate measurement of frication and nasality in addition to voice quality. Different clinical problems require appropriate combinations of speech pattern elements support different approaches and these are supported by appropriate combinations of speech pattern elements. Particular use has been made of the laryngograph signal so that the displays can be given a sense of immediacy and are highly accurate.

发布时间：2020-02-11T05:52:34Z

Pitch Determination from Bone Conducted Speech

简介：This paper explores the potential of pitch determination from bone conducted (BC) speech. Pitch determination from normal air conducted (AC) speech signal can not attain the expected level of accuracy for every voice and background conditions. In contrast, since BC speech is caused by the vibrations that have traveled through the vocal tract wall, it is robust against ambient conditions.

发布时间：2020-02-11T04:14:42Z

NON-INVASIVE MONITORING OF REFLEXIVE SWALLOWING

简介：These methods do not use radiation and have the potential to give more accurate timing information than can be derived from auditory/acoustic monitoring. Pilot data were obtained from the simultaneous use of four sensors: an ear-plug microphone of the type used successfully for the detection of otoacoustic emissions; a standard miniature electret microphone ordinarily used for speech recording; a miniature accelerometer of the type sometimes used for monitoring nasality....

发布时间：2020-02-11T03:40:53Z

Measuring voice in the clinic-Laryngograph Speech Studio Analyses

简介：In the present work the application of pitch perceptual criteria is described in the provision of an integrated framework for practical clinical assessment and therapy. Sustained sounds are shown to require quite different levels of sampling accuracy from those needed for ordinary connected speech. Radically useful results come from the application of these basic ideas to the representation and analysis of the pathological and the normal voice in case management and audit.

发布时间：2020-02-11T03:05:31Z

Laryngograph as a tool in diagnosis and therapy of voice disorders

简介：The electroglottography method is an instrumental analysis by the device called Laryngograph, which can be practically applied in the speech signal analysis for people with voice disorders issues. In this paper capabilities of this device are estimated. A very interesting fact is that visualization of the speech signal obtained with the use of Laryngograph device allows to detect the acoustically and phonetically most important features and present them in a graphical form.

发布时间：2020-02-11T02:07:14Z

SPEECHREADING OF WORDS AND SENTENCES BY NORMALLY HEARING AND HEARING IMPAIRED CHINESE SUBJECTS: THE ENHANCEMENT EFFECTS OF COMPOUND SPEECH PATTERNS

简介：Speech perception requires a receiver to make decisions both about trends and also about the language patterns of a speaker. Hearing people use the speaker’s speech signal as the direct sensory evidence. In the special case of visual speech perception, otherwise known as speechreading, this sensory evidence is derived from the visible articulation movements of speech. Unfortunately, many important articulation movements are invisible.

发布时间：2020-02-10T10:41:36Z

Closing and Opening Phase Variability in Dysphonia

简介：Four examples of the use of vocal fold contact phase measurement are discussed for unilateral paresis. In each case this aspect of voice quality is of greater importance than the physical measurement of loudness and pitch related parameters. For three of the cases electrostimulation has been used as a main part of the treatment.

发布时间：2020-02-10T09:48:51Z

Automatic Evaluation of Voice Quality Using Text-Based Laryngograph Measurements and Prosodic Analysis

简介：Automatic Evaluation of Voice Quality Using Text-Based Laryngograph Measurements and Prosodic Analysis

发布时间：2020-02-10T08:56:30Z

ASPECTS OF VOICE QUALITY: DISPLAY, MEASUREMENT AND THERAPY

简介：In this workshop the physical measures of voice fundamental frequency and larynx contact quotient are explored in relation to the perception, analysis and treatment of aspects of voice quality in a speech and language therapy clinic. A fundamental principle is to analyse samples of continuous speech. The workshop will focus on clients with unilateral vocal fold paralysis.

发布时间：2020-02-10T07:13:37Z

Acoustical characteristics of vocal modes in singing

简介：This paper looks further into the characteristics of the voice modes in singing in order to test the model already provided. The conclusion is that the model is too simple to cover the full range. The work has also provided information on singers’ SPL and formants’ repositioning in dependence of pitch. Further work is recommended.

发布时间：2020-02-10T06:35:19Z

A Longitudinal Study Investigating Synchronization in a Singing Quintet

简介：Research suggests that synchronization between musicians during ensemble performances can be affected by the rhythmic or tonal complexity of the piece being performed and by group roles such as leader-follower relationships. Since previous studies have mostly been conducted within single performance sessions, developmental aspects of interpersonal synchronization in ensembles remain underinvestigated.

发布时间：2020-02-10T04:45:14Z

A corpus of read and conversational Austrian German

简介：This paper presents GRASS (Graz corpus of Read And Spontaneous Speech), the first large scale speech database for Austrian German with both read and conversational speech. In total, the corpus contains approximately 1900 minutes of speech in which 38 speakers produced more than 220 000 word tokens from 14 593 di↵erent word types. The corpus consists of three components.

发布时间：2020-02-10T03:22:46Z