|
PAPERS |
|
Estimation of Modal Decay Parameters from Noisy Response Measurements
(PDF-405K) |
|
|
Matti Karjalainen, Poju Antsalo, Aki Mäkivirta, Timo Peltonen, and Vesa Välimäki |
867 |
|
Estimating decay parameters, such as room reverberation or string decay
of musical instruments, becomes more inaccurate as the noise level
increases if that noise is not also included in the parametric model. A
new method based on nonlinear optimization of a linear model with
additive noise is demonstrated as being more accurate than the
traditional approaches, especially at extreme noise conditions. Several
practical examples illustrate the utility of the proposed method. |
|
|
Comment on this paper
|
|
| |
|
On the Use of Time-Frequency Reassignment in Additive Sound Modeling
(PDF-1.0MB) |
|
|
Kelly Fitz and Lippold Haken |
879 |
|
The conventional short-time spectral analysis is unable to parameterize
signals that have both narrow-band components combined with transients
because of the nature of the time-frequency definition. Moreover, a
single musical partial, which often has time-varying amplitude and
frequency envelopes, does not appear as a single component in the
classical linear analysis approach. By reassigning energy components,
temporal smear is greatly reduced because unreliable data points can be
removed from the representation. Several examples illustrate the ability
to reconstruct abrupt onset square waves. |
|
|
Comment on this paper
|
|
| |
|
Scalable Multichannel Coding with HRFT Enhancement for DVD and Virtual Sound Systems
(PDF-320K) |
|
|
M. O. J. Hawksford |
894 |
|
Using the perceptual properties embedded in the head-related transfer
functions of a normal listener, a standard five- or six-channel audio
source can be transformed to feed additional loudspeakers, perhaps as
many as 18. The proposed system enhances image stability by optimizing
the correct ear signals at the listener's location. The approach
improves spatial resolution over a wider area while retaining backward
compatibility with an unprocessed reproduction environment. |
|
|
Comment on this paper
|
|
| |
|
Two-to-Five Channel Sound Processing
(PDF-278K) |
|
|
R. Irwan and Ronald M. Aarts |
914 |
|
In order to reproduce two-channel audio sources in a surround listening
environment, the authors evaluated a proposed processing system based on
decoding the principle directional component using correlation
techniques. By parameterizing direction a stable center channel was
created. Moreover, the synthesized ambiance for the sides does not
degrade image stability. |
|
|
Comment on this paper
|
|
| |
|
STANDARDS AND INFORMATION DOCUMENTS |
|
AES Standards Committee News
(PDF-241K) |
927 |
|
New Internet facilities; preservation of recordings; storage and
handling; audio connectors; grounding and shielding; file exchange |
|
| |
|
FEATURES |
|
113th Convention Report, Los Angeles
(PDF-9.5MB) |
934 |
|
Exhibitors
(PDF-1.3MB) |
950 |
|
Program
(PDF-186K) |
954 |
|
Bluetooth and Wireless Networking-A Primer for Audio Engineers
(PDF-51K) |
979 |
|
11th Tokyo Regional Convention, Call for Papers
(PDF-27K) |
1001 |
| |
|
DEPARTMENTS |
|
News of the Sections
(PDF-224K) |
985 |
|
Sound Track
(PDF-13K) |
989 |
|
Upcoming Meetings
(PDF-62K) |
990 |
|
New Products and Developments
(PDF-62K) |
990 |
|
Available Literature
(PDF-12K) |
992 |
|
Membership Information
(PDF-128K) |
993 |
|
Advertiser Internet Directory
(PDF-48K) |
999 |
|
In Memoriam
(PDF-26K) |
1000 |
|
Sections Contacts Directory
(PDF-33K) |
1002 |
|
AES Conventions and Conferences
(PDF-45K) |
1008 |
| |
|
EXTRAS |
|
Cover & Sustaining Members List
(PDF-32K) |
|
|
VIP List & Editorial Staff
(PDF-26K) |
|
|
Ads In This Issue
(HTML) |
|
|
Insert: 113th Convention Tape/CD Order Form
(PDF-471K) |
|
|
Insert: 113th Convention Papers Order Form
(PDF-36K) |
|
|
Download Entire Journal As One PDF
(PDF-13.4MB) |
|
