Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics最新文献_第3页

Principle and application of a new test signal to determine the transfer characteristics of telecommunication systems 一种确定电信系统传输特性的新测试信号的原理及应用

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379974

H. Gierlich

引用次数: 2

Multidimensional scaling analysis of head-related transfer functions 头部相关传递函数的多维尺度分析

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379987

F. Wightman, D. Kistler

{"title":"Multidimensional scaling analysis of head-related transfer functions","authors":"F. Wightman, D. Kistler","doi":"10.1109/ASPAA.1993.379987","DOIUrl":"https://doi.org/10.1109/ASPAA.1993.379987","url":null,"abstract":"Accurate rendering of auditory objects in a virtual auditory display depends on signal processing that is based on detailed measurements of the human free-field to eardrum transfer function (HRTF). The performance of an auditory display can be severely compromised if the HRTF measurements are not made individually, for each potential user. This requirement could sharply limit the practical application of auditory display technology. Thus, we have been working to develop a standard set of HRTFs that could be used to synthesize veridical virtual auditory objects for all users. Our latest effort along those lines has involved a feature analysis of HRTFs from 15 listeners who demonstrated high proficiency localizing virtual sources. The primary objectives were to quantify the differences among HRTFs, to identify listeners with similar and different HRTFs, and to test the localizability of virtual sources synthesized from the HRTFs of an individual with closely and not closely matched HRTFs. We used a multidimensional scaling algorithm, a statistical procedure which assesses the similarity of a set of objects and/or individuals, to analyze the HRTFs of the 15 listeners. Listeners with similar HRTFs were identified and their ability to localize virtual sources synthesized from the HRTFs of a \"similar\" listener was evaluated. All listeners were able to localize accurately. When these same listeners were tested with virtual sources synthesized from HRTFs that were identified to be \"different\" by the MDS analysis. Both azimuth and elevation of virtual sources were judged less accurately. Although we were able to identify \"typical\" listeners from the MDS analysis, our preliminary data suggest that several alternative sets of HRTFs may be necessary to produce a usable auditory display system.<<ETX>>","PeriodicalId":270576,"journal":{"name":"Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114371517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

Robust adaptive processing of microphone array data for hearing aids 助听器麦克风阵列数据鲁棒自适应处理

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379992

M. Hoffman

引用次数: 3

Local silencing of room acoustic noise using broadband active noise control 利用宽带主动噪声控制局部消声

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.380005

Dennis R. Morgan, D. A. Quinlan

引用次数: 5

Analog/digital hybrid VLSI signal processing using single BIT modulators 模拟/数字混合VLSI信号处理使用单比特调制器

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379978

P. Dietz, L. R. Carley

引用次数: 2

Perceptual consequences of interpolating head-related transfer functions during spatial synthesis 在空间合成过程中插值头部相关传递函数的感知后果

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379986

E. Wenzel, S. Foster

{"title":"Perceptual consequences of interpolating head-related transfer functions during spatial synthesis","authors":"E. Wenzel, S. Foster","doi":"10.1109/ASPAA.1993.379986","DOIUrl":"https://doi.org/10.1109/ASPAA.1993.379986","url":null,"abstract":"In implementing a spatial auditory display, many engineering compromises must be made to achieve a practical system. One such compromise involves devising methods for interpolating between the head-related transfer functions (HRTFs) used to synthesize spatial stimuli in order to achieve smooth motion trajectories and locations at finer resolutions than the empirical data. The perceptual consequences of interpolation can only be assessed by psychophysical studies. This paper compares three subjects' localization judgments for stimuli synthesized from non-interpolated HRTFs. Simple linear interpolations of the empirical HRTFs, stimuli synthesized from non-interpolated minimum-phase approximations of the HRTFs, and linear interpolations of the minimum-phase HRTFs. The empirical HRTFs used were derived from a different subject (SDO) from a previous study by Wightman and Kistler (1989) and whose data are provided with the Convolvotron synthetic 3D audio system. In general, the three subjects showed the same high rates of front-back and up-down confusions that were observed in a recent experiment using non-individualized (non-interpolated) transforms from SDO. However, there were no obvious differences in localization accuracy between the different types of synthesis conditions.<<ETX>>","PeriodicalId":270576,"journal":{"name":"Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125809793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 67

Constrained least squares estimation of sinusoidal frequencies and application to fast estimation of very low frequency tones 正弦频率的约束最小二乘估计及其在极低频音调快速估计中的应用

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379982

P. Chitrapu, Z. Pan

引用次数: 3

HNM: a simple, efficient harmonic+noise model for speech HNM:一个简单、高效的语音谐波+噪声模型

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379970

Jean Laroche, Y. Stylianou, Eric Moulines

引用次数: 55

Dithered quantizers with and without feedback 抖动量化器有和没有反馈

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379977

R. Wannamaker, S. Lipshitz, J. Vanderkooy

引用次数: 8

Superdirective arrays for hearing aids 助听器的超指令阵列

Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1993-10-17 DOI: 10.1109/ASPAA.1993.379993

J. Kates

引用次数: 43