Detecting laterality and nasality in speech with the use of a multi-channel recorder

Król, Daniel; Lorenc, Anita; Święciński, Radosław

doi:10.1109/icassp.2015.7178952

Cited by 14 publications

(4 citation statements)

References 10 publications

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“…Combining the 16-channel circular microphone array with the adaptive beamforming method used for rendering three-dimensional acoustic fields of the recorded audio data. Preliminary research results using fixed beamforming have been presented in [18,19]. A basic problem of fixed beamforming is poor directivity factor in low frequency range and undesirable side lobes [24].…”

Section: Methodsmentioning

confidence: 99%

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Acoustic Field Distribution in Speech with the use of the Microphone Array

Król¹,

Lorenc

2017

Sci. Tech., Innov

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This article presents a 16-channel microphone-array recorder/processor that allows for a simultaneous and non-invasive detection of oral, oronasal and nasal segments in speech. Such devices and methods have not been used in the research on the articulation of sounds in the world’s languages. In this paper analysis of Polish nasal vowel was presented. Adaptive beamforming method used for rendering three-dimensional acoustic fields of the recorded audio data has been shown.

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Section: Methodsmentioning

confidence: 99%

“…There are also two separate microphones attached to it. Currently the most modern way of registering acoustic signal and analysis of its spacial area during speaking is examination with microphone matrix using beamforming technique [18,19]. In the contrary to above mentioned ways of examination, this one is uninvasive teqchinque (e.g.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Field Distribution in Speech with the use of the Microphone Array

Król¹,

Lorenc

2017

Sci. Tech., Innov

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“…Articulation research was performed by synchronously registering several types of signals: articulographic, video and audio [2,13,14]. For this purpose the Carstens articulograph (AG500), a vision system consisting of three Point Gray high speed cam-eras (Gazelle GZL-CL-22C5M-C), and an audio recorder with 16-channel microphone array [15,16] were used. The construction of the measuring system and its dependencies are shown in Figure 1, while its operation is described in detail in [17].…”

Section: Methodsmentioning

confidence: 99%

The EMA Study on the Inter-individual Variability and Differences in Articulation between Polish Oral and Nasalised Vowels

Wielgat

Lorenc

2017

Sci. Tech., Innov

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The electromagnetic articulography (EMA) is a relatively exact and efficient method used in study on speech production physiology. It allows to precisely estimate movement trajectories of speech articulators like tongue, lips, jaw etc. by tracking position of sensors fixed to the articulators. This paper presents results of EMA research on Polish oral and nasalised vowels in orthography represented by the graphemes <e>, <o>, <ę>, <ą>. Inter-individual variability of tongue and lips position in X-axis direction during realization of the same phoneme has been estimated. Differences between oral and nasalised vowels in terms of movement of articulators in X-axis direction have been assessed too.

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“…The study attempts to assess the acoustic field distribution in the process of lateral and nasal articulation of Polish phones. The proposed device [21] consists of a 16-channel recorder, a circular microphone array, microphone amplifiers and analog-to-digital converters, and a signal processor. Mik et al [22], [23] extended the system to a multimodal framework consisting of an electromagnetic articulograph, a 16-channel microphone array, and three ultrafast cameras.…”

Section: ) Data Acquisition Systemsmentioning

confidence: 99%

Multichannel Speech Acquisition and Analysis for Computer-Aided Sigmatism Diagnosis in Children

et al. 2020

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A novel concept for acoustic data acquisition for computer-aided diagnosis of a common speech disorder (sigmatism) is presented in this paper. We designed and built a data acquisition device enabling repeatable speech signal acquisition in up to fifteen spatially-organized acoustic channels. The system is safe, non-invasive, comfortable, visually attractive to the user, and does not affect the articulation process. It is easy and convenient to use and transport and does not require a specialized measuring room. We collected a large speech corpus containing speech samples from 107 children aged five or six. The data were acquired according to a dedicated protocol. They consisted of multichannel acoustic recordings of selected words containing sibilants and diagnostic descriptions of articulatory features prepared by speech therapy experts. The data acquisition device was examined for responses and repeatability of individual microphones in the presence of various synthetic and human-generated acoustic stimuli. Then, it was verified for its ability to indicate distinctive patterns in spatial energy distribution in different realizations of two sibilants: /s/, /S/ in three pronunciation categories each, based on collected speech-articulation corpus. The results confirm that a multichannel speech signal can be successfully employed for the analysis of the spatial distribution of airflow during normative or pathological realization of sibilant sounds in children. The method is promising for comprehensive analysis of articulatory features, which follows new trends in the description of speech disorders; such an approach was not employed in speech diagnosis or therapy so far.

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Detecting laterality and nasality in speech with the use of a multi-channel recorder

Cited by 14 publications

References 10 publications

Acoustic Field Distribution in Speech with the use of the Microphone Array

Acoustic Field Distribution in Speech with the use of the Microphone Array

The EMA Study on the Inter-individual Variability and Differences in Articulation between Polish Oral and Nasalised Vowels

Multichannel Speech Acquisition and Analysis for Computer-Aided Sigmatism Diagnosis in Children

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