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Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
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Reflecting on Reflections - June 2014
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Quiet Thoughts on a Deafening Problem - May 2014
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Journal of the AES


2006 April - Volume 54 Number 4

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Papers

PAPERS
A Hybrid Technique for Validating Unidimensionality of Perceived Variation in a Spatial Auditory Stimulus Set (PDF-447KB) (HI-RES PDF-8MB)  
Tobias Neher, Tim Brookes, and Francis Rumsey    259
Having a set of audio stimuli that varies along a specified single perceptual dimension, regardless of variations in physical acoustic parameters, would be extremely useful in subjective experiments that require training or reference stimuli. After considering various paradigms for validating such a set, a hybrid technique comprising multidimensional scaling and subject-specific verbalizations proved to be the most promising. This technique was developed further and experiments demonstrated that it revealed which groups of stimuli vary as intended along a single perceptual dimension and which vary along multiple dimensions.  
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Spatially Modulated Auditory Alerts for Aviation (PDF-249KB) (HI-RES PDF-5.3MB)  
Durand R. Begault, Mark R. Anderson, and Bryan U. McClain    276
Detection of a nonspeech auditory alert (alarm) in a noisy environment increases when such an alert is moved along a virtual spatial trajectory using a 3-D auditory display. This approach decreases thresholds by as much as 8 dB because of dynamic changes in level and interaural cross-correlation of the signals at the two ears.  
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ENGINEERING REPORTS
Dynamic Crosstalk Cancellation for Binaural Synthesis in Virtual Reality Environments (PDF-478KB) (HI-RES PDF-11.5MB)  
Tobias Lentz    283
In order to create a 360-degree virtual reality with free listener movement, a system was designed with a combination of dynamic head-tracking crosstalk cancellation and binaural synthesis of spatial environments. Rather than use two loudspeakers with limited rotational range, the proposed system uses two pairs of loudspeakers with dynamic crossfading as the listener rotates his head through eight sectors. Preliminary tests in an environment with reflections demonstrate the feasibility of the approach.  
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Model Optimization of Distributed-Mode Loudspeaker Using Attached Masses (PDF-496KB) (HI-RES PDF-8.6MB)  
Suzhen Zhang, Yong Shen, Xiaoxiang Shen, and Jinglei Zhou    295
While distributed-mode loudspeakers have many advantages compared with conventional cone topology, they usually have excessive fluctuation in frequency response. By attaching area masses, resonances in selective frequency regions can be distributed more evenly, and the excessive fluctuation is reduced. A generic algorithm has been developed to optimize the position, weight, and number of such masses. Simulated results using FEMLAB were experimentally tested in an anechoic chamber, thus validating the approach to improving distributed-mode topologies.  
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STANDARDS AND INFORMATION DOCUMENTS
AES Standards Committee News (PDF-89KB)    306
Unique identifiers in AES3; audio in ATM networks; audio metadata; forensic audio  
 
FEATURES
28th Conference Preview, Piteå, Sweden (PDF-285KB)    308
    Calendar (PDF-132KB)    311
    Program (PDF-538KB)    312
Audio Power Amplification (PDF-429KB) (HI-RES PDF-4.1MB)    319
30th Conference, Saariselkä, Finland, Call for Papers (PDF-84KB)    336
 
DEPARTMENTS
News of the Sections (PDF-237KB)    324
Upcoming Meetings (PDF-229KB)    328
Sound Track (PDF-130KB)    329
New Products and Developments (PDF-97KB)    331
Available Literature (PDF-155KB)    332
Membership Information (PDF-111KB)    334
Advertiser Internet Directory (PDF-113KB)    335
Sections Contacts Directory (PDF-143KB)    337
AES Conventions and Conferences (PDF-208KB)    344
 
EXTRAS
Cover & Sustaining Members List (PDF-138KB)    
AES Officers, Committees, Offices & Journal Staff (PDF-135KB)    
 
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AES - Audio Engineering Society