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Analyzing Virtual Sound Source Attributes Using a Binaural Auditory Model

Ville Pulkki, Matti Karjalainen, and Jyri Huopaniemi 203

A computational model of auditory perception is used to evaluate virtual sound sources that were
created by different techniques. The spatial attributes are discussed relative to the auditory cues of
real and virtual sound sources. The authors found good computational agreement with empirical
listening results based on the model's prediction of known listening phenomena in loudspeaker
listening environments.

Objective and Subjective Evaluation of Head-Related Transfer Function Filter Design
Jyri Huopaniemi, Nick Zacharov, and Matti Karjalainen 218

The auditory perception point of view in this study is the basis for binaural auditory modeling as
applied to the head-related transfer function. The authors present applicable perceptually valid filter
design techniques and listening test results for localization and timbre degradation. The stated
conclusion is that filter design methods for 3-D sound can gain considerable efficiency when a non-
uniform auditory frequency resolution representing the human ear is used. The required filter length
for high-quality 3-D sound synthesis is also dependent on the incident angle of the incoming sound.

Implementation of a New Algorithm Using the STFT with Variable Frequency Resolution for the Time­Frequency Auditory Model Hyuk Jeong and Jeong-Guon Ih 240

A new algorithm is proposed for the time-frequency analysis of unsteady sound signals whose
objective is the consideration of the human auditory processing system. The system is called the
VFR-STFT (short-time Fourier transform with variable frequency resolution). The frequency
resolution is adjusted to the variation of filtered frequency ranges by using a downsampling technique.
This system can be considered as a useful time­frequency analysis method to describe and analyze
auditory related subjects.

Tone Bursts for the Objective and Subjective Evaluation of Loudspeaker Frequency Response
in Ordinary Rooms
Allan Rosenheck and Kurt Heutschi 252

Controlled-length tone bursts are proposed for evaluating low-frequency performance of loudspeakers
in reverberant fields of conventional rooms. This method offers a practical advantage over other
conventional tests and provides a rapid, subjective evaluation for each frequency band of the system
under test.


AES24-1-1999 (Revision of AES24-1-1995) AES standard for sound system control --
Application protocol for controlling and monitoring audio devices via digital data networks --
Part 1: Principles, formats, and basic procedures

AES Standards Committee News 298

106th Convention meetings; digitally interfaced microphones; sound system control


AESWP­1001 AES White Paper: Networking Audio and Music Using Internet2 and Next-
Generation Internet Capabilities

Robin Bargar, Steve Church, Akira Fukuda, James Grunke, Douglas Keislar, Bob

Moses, Ben Novak, Bruce Pennycook, Zack Settel, John Strawn, Phil Wiser, and Wieslaw Woszczyk 300

Updates and Corrections to the 1998/1999 International Sections Directory 317

Updates to Review of Society's Sustaining Members 322


News of the Sections 311

Sound Track 315

Upcoming Meetings 318

New Products and Developments 319

Available Literature 320

Membership Information 324

In Memoriam 326

Audio Engineering Society Membership

Application Instructions 327

Sections Contacts Directory 330

AES Conventions and Conferences 336

In this issue...

Sound-Source Attributes

HRTF Filter Design

Auditory Model

Tone Burst Loudspeaker Evaluation

AES-24 Protocol Revision


AES White Paper:
Internet2 Audio

Sections Directory
Sustaining Members

FPOFor the cover:

Volume 47 Number 4 1999 April

spine:VOLUME 47, NO. 4 1999 APRILBoiler, p. 2(ISSN 0004-7554), Volume 47, Number 4, 1999 April