Generating tonal distinctions in Mandarin Chinese using an electrolarynx with preprogrammed tone patterns

Guo, Liana; Nagle, Kathleen F.; Heaton, James T.

doi:10.1016/j.specom.2016.01.002

Cited by 7 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The participants were instructed on how to use the EL (YOURTONE; DENSEI COMTEC Inc., Hokkaido, Japan) and VR. They were asked to hold their breath while speaking to (1) prevent phonation and air flow unachievable by laryngectomees and (2) approximate the acoustic effects caused by anatomical changes after laryngectomy 12 . Subsequently, they performed a 100‐syllable test 13 in Japanese and long reading test of “The North Wind and the Sun” 14 using each device for subjective evaluation.…”

Section: Methodsmentioning

confidence: 99%

Development and evaluation of a new intraoral voice assist device called the voice retriever

Yamada,

Yamaguchi,

Horike

et al. 2024

Laryngoscope Investig Oto

View full text Add to dashboard Cite

ObjectivePatients lose their voice after laryngectomy for laryngeal cancer or aspiration prevention surgery for severe dysphagia. To assist such patients, we developed and verified the utility of a novel vocalization method using a device termed the voice retriever (VR), in which the sound source is placed in the mouth.MethodsWe investigated the effectiveness of the VR in patients. The VR consists of a mouthpiece with a built‐in speaker and a dedicated application that serves as the sound source. We compared the speech intelligibility and naturalness in normal participants using VR and an electrolarynx (EL) for the first time as well as the voice‐related quality of life (V‐RQOL) in patients with dysphonia before and after using the VR.ResultsThe VR produced significantly higher 100‐syllable test scores as well as fluency, amount of additional noise, intonation, intelligibility and overall long reading test ratings in the first‐time VR and EL users. Furthermore, the VR use significantly improved the V‐RQOL of participants with dysphonia.ConclusionCompared to EL, VR allows more effective speech improvement in participants without experience using an alternative vocalization method and improves the V‐RQOL in patients with dysphonia.Level of EvidenceStep 4.

show abstract

Section: Methodsmentioning

confidence: 99%

Development and evaluation of a new intraoral voice assist device called the voice retriever

Yamada,

Yamaguchi,

Horike

et al. 2024

Laryngoscope Investig Oto

View full text Add to dashboard Cite

show abstract

“…The recent work on electrolarynxes suggests a variation of fundamental frequencies to produce different tones for tonal languages (Guo et al, 2016;Ifukube, 2017;Wang et al, 2017a;Wang et al, 2017b). However, extensive training is required to produce pitch variations.…”

Section: Introductionmentioning

confidence: 99%

Design of Electrolarynx to Increase Energy Efficiency by Varying the Driving Source

Maila

Bhat

Prasad

2020

IJTech

View full text Add to dashboard Cite

The larynx is an organ in the human respiratory system that forms the basis of the speech production system. An electrolarynx is a device used by most laryngectomees to regain their verbal communication. Our objective was to design an electrolarynx with increased energy efficiency by modifying the driving source. Initially, we designed the electrolarynx to accommodate various driving signals. We then compared the voice output obtained by different input signals for quality and measured energy consumption using a digital multimeter. When compared to existing methods, the proposed driving source was found to be 11.1% more energy efficient. Voice quality was also better than the traditional driving source by 31.6%.

show abstract

“…The efficiency of these algorithms tends to decrease when the estimation of noise reference signal becomes complex resulting in poor noise reduction [25]. The latest work on the device suggests the fundamental frequency variations to produce different tones for tonal languages [26][27][28][29]. However it requires an extensive training to produce variations in pitch.…”

Section: Introductionmentioning

confidence: 99%

A Design of Low Power Electrolarynx with Glottal Modified Source

Madhushankara¹,

Bhat²,

Prasad³

2018

JESTR

View full text Add to dashboard Cite

The larynx is a flexible part in the respiratory tract, a source of vibration during verbal communications. An electrolarynx or artificial larynx is a common device adopted by the laryngectomee to restore the speech. The objective of this paper is to design a low power electrolarynx using modified glottal source and perform an objective and subjective analysis of the vowel quality. In the first part, an electrolarynx circuit is designed which can drive different types of input signals. In the second part, a driving source is designed by pre-filtering the effect of neck surface. The power consumption of the prototype is measured and compared with the conventional type of electrolarynx. The vowel qualities are compared with that of normal vowels produced by a volunteer. We have found out that the glottal modified wave can reduce the power supply requirement of the electrolarynx. Loudness, quality factor and position of the formants are used as measures of quality for vowels produced by the present approach and found to be better (or comparable) than the traditional electrolarynx. When compared to existing method, the electrolarynx with glottal modified wave is power efficient and has a potential in forming a wearable device. It also has better vowel quality than the one with the conventional driving signal.

show abstract

Generating tonal distinctions in Mandarin Chinese using an electrolarynx with preprogrammed tone patterns

Cited by 7 publications

References 11 publications

Development and evaluation of a new intraoral voice assist device called the voice retriever

Development and evaluation of a new intraoral voice assist device called the voice retriever

Design of Electrolarynx to Increase Energy Efficiency by Varying the Driving Source

A Design of Low Power Electrolarynx with Glottal Modified Source

Contact Info

Product

Resources

About