The Experts below are selected from a list of 32850 Experts worldwide ranked by ideXlab platform

Takayuki Arai - One of the best experts on this subject based on the ideXlab platform.

  • digital pattern playback for education in digital signal processing and Speech Science
    International Conference on Acoustics Speech and Signal Processing, 2012
    Co-Authors: Takayuki Arai
    Abstract:

    We developed a digital version of Pattern Playback to convert a spectrographic representation of Speech back into a Speech signal. Pattern Playback was originally developed by Cooper and his colleagues from Haskins Laboratories in the late 1940s. We used our Digital Pattern Playback (DPP) for instruction in digital signal processing and Speech Science. The original DPP used two different algorithms: amplitude modulation and fast Fourier transform. The new DPP uses additive synthesis of sinusoidal harmonics, which is easier for undergraduate college students to understand. We also designed a scientific exhibition with DPP at a Science museum for children and adults. DPP is educational for a wide variety of people, from children to technical students.

  • Education in acoustics and Speech Science using vocal-tract models.
    The Journal of the Acoustical Society of America, 2012
    Co-Authors: Takayuki Arai
    Abstract:

    Several vocal-tract models were reviewed, with special focus given to the sliding vocal-tract model [T. Arai, Acoust. Sci. Technol. 27(6), 384-388 (2006)]. All of the models have been shown to be excellent tools for teaching acoustics and Speech Science to elementary through university level students. The sliding three-tube model is based on Fant's three-tube model [G. Fant, Acoustic Theory of Speech Production (Mouton, The Hague, The Netherlands, 2006)] and consists of a long tube with a slider simulating tongue constriction. In this article, the design of the sliding vocal-tract model was reviewed. Then a Science workshop was discussed where children were asked to make their own sliding vocal-tract models using simple materials. It was also discussed how the sliding vocal-tract model compares to our other vocal-tract models, emphasizing how the model can be used to instruct students at higher levels, such as undergraduate and graduate education in acoustics and Speech Science. Through this discussion the vocal-tract models were shown to be a powerful tool for education in acoustics and Speech Science for all ages of students.

  • ICASSP - Digital Pattern Playback for education in digital signal processing and Speech Science
    2012 IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), 2012
    Co-Authors: Takayuki Arai
    Abstract:

    We developed a digital version of Pattern Playback to convert a spectrographic representation of Speech back into a Speech signal. Pattern Playback was originally developed by Cooper and his colleagues from Haskins Laboratories in the late 1940s. We used our Digital Pattern Playback (DPP) for instruction in digital signal processing and Speech Science. The original DPP used two different algorithms: amplitude modulation and fast Fourier transform. The new DPP uses additive synthesis of sinusoidal harmonics, which is easier for undergraduate college students to understand. We also designed a scientific exhibition with DPP at a Science museum for children and adults. DPP is educational for a wide variety of people, from children to technical students.

  • INTERSpeech - Mechanical Vocal-tract Models for Speech Dynamics
    2010
    Co-Authors: Takayuki Arai
    Abstract:

    Arai has developed several physical models of the human vocal tract for education and has reported that they are intuitive and helpful for students of acoustics and Speech Science. We first reviewed dynamic models, including the sliding three-tube (S3T) model and the flexible-tongue model. We then developed a head-shaped model with a sliding tongue, which has the advantages of both the S3T and flexible-tongue models. We also developed a computer-controlled version of the Umeda & Teranishi model, as the original model was hard to manipulate precisely by hand. These models are useful when teaching the dynamic aspects of Speech. Index Terms: vocal-tract model, Speech dynamics, Speech production, education in acoustics, Speech Science

  • simple physical models of the vocal tract for education in Speech Science
    Conference of the International Speech Communication Association, 2009
    Co-Authors: Takayuki Arai
    Abstract:

    In the Speech-related field, physical models of the vocal tract are effective tools for education in acoustics. Arai’s cylindertype models are based on Chiba and Kajiyama’s measurement of vocal-tract shapes. The models quickly and effectively demonstrate vowel production. In this study, we developed physical models with simplified shapes as educational tools to illustrate how vocal-tract shape accounts for differences among vowels. As a result, the five Japanese vowels were produced by tube-connected models, where several uniform tubes with different cross-sectional areas and lengths are connected as Fant’s and Arai’s three-tube models. Index Terms: Speech Science, vocal-tract model, education in acoustics, vowel production, acoustic tube

W. Tecumseh Fitch - One of the best experts on this subject based on the ideXlab platform.

Anna Matosova - One of the best experts on this subject based on the ideXlab platform.

  • ultrafit a speaker friendly headset for ultrasound recordings in Speech Science
    Conference of the International Speech Communication Association, 2018
    Co-Authors: Lorenzo Spreafico, Michael Pucher, Anna Matosova
    Abstract:

    UltraFit is a headset for Ultrasound Tongue Imaging (UTI) printed in Nylon; altogether, it weighs about 350 g. It was developed through an iterative process of rapid prototyping a proof of concept, asking for feedback from researchers and subjects of the experiments, and instantly incorporating changes based on their feedback into the design. We evaluated the UltraFit headset by recording a speaker using an optical marker tracking system that provides sub-millimeter tracking accuracy. We show that the overall error range of the headset movement for this speaker lies within 3mm with most errors lying in a 1-2mm range. This makes the headset potentially suitable for Speech Science applications. Furthermore, we analyze the superior usability of the headset compared to other existing designs and describe the headsets development process.

  • INTERSpeech - UltraFit: A Speaker-friendly Headset for Ultrasound Recordings in Speech Science.
    Interspeech 2018, 2018
    Co-Authors: Lorenzo Spreafico, Michael Pucher, Anna Matosova
    Abstract:

    UltraFit is a headset for Ultrasound Tongue Imaging (UTI) printed in Nylon; altogether, it weighs about 350 g. It was developed through an iterative process of rapid prototyping a proof of concept, asking for feedback from researchers and subjects of the experiments, and instantly incorporating changes based on their feedback into the design. We evaluated the UltraFit headset by recording a speaker using an optical marker tracking system that provides sub-millimeter tracking accuracy. We show that the overall error range of the headset movement for this speaker lies within 3mm with most errors lying in a 1-2mm range. This makes the headset potentially suitable for Speech Science applications. Furthermore, we analyze the superior usability of the headset compared to other existing designs and describe the headsets development process.

Katherine S Harris - One of the best experts on this subject based on the ideXlab platform.

D.a. Reynolds - One of the best experts on this subject based on the ideXlab platform.