Acoustical Science and Technology

Ultrasound technology that delivers a powerful sound wave with sharp directivity over a long distance in the air is required. As a sound source for this purpose, authors devised an ultrasonic sound source with a new shape in which the opening area is smaller than that of the complex reflective plate, and a reflective plate whose size is equivalent to the area of the vibrating plate was mounted to it. This reflective plate is composed of a planar reflective plate and a truncated cone-shaped reflective plate. In this study, first, the directional characteristics of a circular transverse vibrating plate-type aerial ultrasonic sound source with an integrated rigid wall structure were examined. Next, the planar reflective plate and truncated cone-shaped reflective plate were analyzed to refine the design. Furthermore, a sound source equipped with these reflective plates was fabricated, and various acoustic characteristics were investigated. As the results, when the input power of the sound source was 30 W, the sound pressure was 293 Pa at the distance of 2 m. This is a unidirectional sound wave with a very intense sound pressure.

Shinnosuke Uchiyama

Takuya Asami

Hikaru Miura

Nippon Onkyo Gakkaishi/Acoustical science and technology/Nihon Onkyo Gakkaishi

Acoust. Sci. &amp; Tech.

Development of an aerial ultrasonic sound source with a truncated cone-shaped reflective plate on a circular transverse vibrating plate

圆截锥形反射板圆形横向振动板空中超声声源的研制

Shinichi Sakamoto

On-site measurement of ground effect for actual road traffic noise

实际道路交通噪声地面效应的现场测量

Yongwei Li

Aijun Li

Jianhua Tao

Feng Li

Donna Erickson

Masato Akagi

Contributions of audio and visual modalities to perception of Mandarin Chinese emotions in valence-arousal space

音频和视觉模态对普通话情感在效价-唤醒空间中感知贡献的研究

Leo Misono

Kenji Muto

Frequency characteristics of courtship song of large brown cicada in Tokyo 2024

2024年东京大褐蝉求偶鸣声的频率特性

This paper proposes a voice conversion named SpSiVC that appropriately converts both speech and singing voices with a single model. Since the distribution of pitch between speakers is significantly different for speech and singing voices, voice conversion has been mainly evaluated as a separate task for speech and singing voice conversion. SpSiVC introduces an adaptive F0 loss, which enables conversion that implicitly switches the shift width of the logarithm F0 according to the type of input voice. We examine the effectiveness of the F0 constraints in objective and subjective evaluations.

Shogo Fukawa

Takashi Nose

Shuhei Imai

Akinori Ito

Unified model for voice conversion of speech and singing voice using adaptive pitch constraints

用于语音和歌声转换的统一模型，采用自适应音高约束

Mio Yonezawa

Naohisa Inoue

Comparison of finite element models for predicting sound absorption coefficients of infinitely periodical slit resonators, [Acoustical Science and Technology 45(6), 324-328 (2024)]

有限元模型预测无限周期狭缝谐振器吸声系数的比较研究，[声学科学与技术 45(6), 324-328 (2024)]

Through three-dimensional wave-based numerical analysis, the propagation characteristics of road traffic noise from embankment roads were investigated, focusing on the effects of the side slope angle and height of the embankment. When the prediction plane was set as an orthogonal cross-section in the lane direction, the distribution of A-weighted sound pressure level differences between embankments with a slope and a right-angle wedge showed relatively high values in the region corresponding to the paths where diffracted sound from the edge of the embankment reflects off the ground surface, regardless of the embankment height, slope angle, and position of the prediction plane. When the embankment height and slope angle were the same, the level difference distribution was nearly the same regardless of the position of the sound source and orthogonal prediction plane. Based on these characteristics, an empirical correction formula was proposed, applicable to an arbitrary orthogonal cross-section to the embankment lane direction, representing the effect of the embankment slope angle in terms of the A-weighted sound pressure level difference. By appropriately setting the values of the coefficients required in the formula, both the maximum and average errors in the prediction plane can be reduced without significantly amplifying either of them.

Yosuke Yasuda

Seiya Nishimura

Yu Kamiya

Makoto Morinaga

Three-dimensional numerical investigation on propagation characteristics of road traffic noise from an embankment road: Construction of correction formula for the effect of side slope angle

堤路交通噪声传播特性的三维数值研究：侧坡角度影响修正公式的构建

Tatsuhiro Tanaka

Makoto Otani

Directionally characterized pseudo-perfect diffuseness: A detailed comparison of its theoretical formulations

方向性表征的伪完全漫射：其理论公式的详细比较

Consumers value products that provide a multi-sensory experience. This paper provides a summary of our recent work on the design of sensory experiences using the sound symbolism of onomatopoeia with a focus on the operation of rotary switches. The experiments were conducted to collect onomatopoeic expressions that reflect tactile and auditory experiences during switch operation. A quantitative text analysis was conducted to examine the correspondence between these expressions and physical quantities. In the representation of mono-sensory experiences through onomatopoeic expressions, our findings reveal a distinct sound symbolism in onomatopoeic expressions that reflects changes in physical quantities such as click torque for tactile sensations and sound loudness and sharpness for auditory sensations. For tactile and auditory multi-sensory experiences, the onomatopoeic expressions incorporate features of both sensations. Moreover, the results suggest that when tactile and auditory stimuli are combined, the sharpness of the operating sound has the most influence on onomatopoeic expressions. These insights suggest the potential of using the sound symbolism of onomatopoeia for quantitatively designing sensory experiences. This approach could be used to capture consumer intent and incorporate qualitative experiences into product design.

Toru Miyairi

Design of sensory experiences using sound symbolism: A study on rotary switch operation

使用声音象征主义设计感官体验：旋转开关操作研究

Binaural and transaural systems are well-known methods of sound field reproduction. However, each system has its own problems such as in-head localization and narrow control points. Therefore, this study aims to design a sound field reproduction system using shoulder-mounted wearable-speakers that can solve these problems. The system is expected to sustain the effect of sound field reproduction even while moving and is expected to be applied in the field of entertainment. This paper shows the head transfer function of the wearable loudspeaker and designs an inverse filter, which is indispensable for the sound field reproduction system, using H∞ control theory.

Kenji Kita

Design of inverse filter using &lt;i&gt;H&lt;/i&gt;&lt;sub&gt;∞&lt;/sub&gt; control theory for sound field reproduction with shoulder-mounted wearable-speakers

肩戴式可穿戴扬声器声场再现的H∞控制理论逆滤波器设计

Abbreviation	Acoust. Sci. & Tech.
Journal Impact	0.74
Quartiles(Global)	ACOUSTICS(Q4)

ISSN	1346-3969, 1347-5177, 2186-859X
h-index	43

Publication Information	Publisher: Acoustical Society of Japan，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2000，Proportion of original research papers: 100.00%，Self Citation Rate:16.70%， Gold OA Rate: 92.86%

Acoustical Science and Technology

Journal Citation Format

A journal article with 1 author

A journal article with 2 authors

A journal article with 3 authors

A journal article with 5 or more authors

Books Citation Format

Thesis Citation Format

Web sites Citation Format

Patent Citation Format

Staying up late manually editing references? ivySCI automatically matches journals and helps you generate references with a single click.

Share Submission Experience