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Advance Programme
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14:00 – 15:30 |
Opening Session & keynote speakers Workshop Chair: Catherine
Quinquis (France Telecom, France)
[ BIO ]
Opening: Catherine Hammond (Director, Standardization R&D, France Telecom)
[ PRESENTATION ]
Keynote Speakers:
- Prof Jens Blauert, Professor Emeritus (University of Bochum,
Germany); Models of the Binaural Hearing System: The Precedence Effect
[ BIO: Blauert
| ABSTRACT |
PRESENTATION ]
- Sabine Meunier (CNRS LMA, Marseille, France): Loudness: Current Knowledge and Questions
[ BIO |
ABSTRACT |
PRESENTATION ]
Master of Ceremonies: Jean-Yves Monfort (France Telecom, France)
[ BIO ] |
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15:30 – 16:00 |
Coffee break |
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16:00 – 17:30 |
Round Table with SDOs
[ PRESENTATIONS ] |
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09:00 – 10:30 |
SESSION 1: Loudness
Coordinator: Gerald Lecucq (Alcatel-Lucent, France)
[ BIO ]
Objectives: The goal of this session is to initiate
significant technical work on a common loudness rating algorithm for all
bandwidths from narrowband to full band audio signals.
The multimedia revolution has led to an increase in the required audio
signal bandwidth for next-generation networks. In addition to existing
narrowband and wideband codecs, development of full band is taking place
In order to ensure coherency for the transmission plan of end-to-end
multi-bandwidth audio applications through the network for both narrowband /
wideband and full band, it is highly desirable to develop an algorithm
aiming to calculate the loudness ratings for all bandwidths.
As concrete example: at the last ITU-T/SG12 meeting in October 2007, it was
pointed out that there is confusion in the wideband loudness ratings
calculation. Today, the last revision of P.79 gives the preferred methods
for calculating loudness ratings in two different ways: the first one
applicable to narrowband and dual-mode (narrowband – wideband); the second
one applicable to full wideband. These two methods lead to different values
for LR calculation. This situation is not satisfactory because it leads to a
mismatch in transmission for both narrowband / wideband and full band.
Presentations:
- Sridhar Kalluri (Starkey Hearing Research Center, USA): High frequencies for the hearing impaired
[ BIO
| ABSTRACT |
PRESENTATION ]
- Arnault Nagle (France Telecom, France): Quality impact of diotic versus monaural listening on processed speech
listening
[ BIO
| ABSTRACT |
PRESENTATION ]
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10:30 – 11:00 |
Coffee break |
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11:00 – 12:30 |
SESSION 2: Modelling: binaural, spatialisation
Coordinator: Thomas Sporer (Fraunhofer, Germany) [ BIO ]
Objectives: Recent developments in terminals and content have
led to a change in the listening condition from monaural to binaural and
therefore binaural perception has to be taken into account (headphones or
free-field listening with loudspeaker system). For subjective assessment of
codecs and audio/multimedia, the new dimension of sound spatialisation
should also be added to the quality rating, which implies new methodologies
and new criteria. Defects induced by codecs when applied to 3D audio content
are another issue of concern.
Presentations:
- Gunilla Berndtsson (Ericsson Research, Sweden): Creation of
test material that simulates the stereo capture of a teleconference site
[ BIO
| ABSTRACT |
PRESENTATION ]
- Peter Hughes (BT Group, UK): Spatial audio conferencing
[ BIO
| ABSTRACT |
PRESENTATION ]
- Mansoor Hyder (University of T�bingen, Germany): 3D Telephony
[ BIO
| ABSTRACT |
PRESENTATION ]
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12:30 – 14:00 |
Lunch break |
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14:00 – 15:30 |
SESSION 3: Artificial Head, Ear and Mouth
Coordinator: Luc Madec (B&K, Denmark)
[ BIO ]
Objectives: With the evolution of multimedia applications and
telephony towards an increasing high frequency range, artificial head, ears
and mouth available on the market today naturally need to follow the same
trend.
The purpose of this session is to gather information from all the players
involved in the telecommunication and audio industry, and related fields,
which would form the basis of scientific work aiming to address all the
aspects of this topic, among which acoustic impedance of human ears is of
primary importance.
Presentations:
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15:30 – 16:00 |
Coffee break |
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16:00 – 17:30 |
SESSION 4: Terminals characteristics and teleconferencing
Coordinator: Hans Gierlich (HEAD acoustics GmbH, Germany)
[ BIO ]
Objectives: Standards for speech and multimedia terminals.
This session will address the consequences on requirements for future
terminals implementing superwideband or fullband and 3D, in particular in
the context of teleconferences. Moreover, the main parameters to be defined
in order to guarantee relevant quality for these terminals as well as to
ensure the quality for the local user(s) and the far end user(s) will be
considered.
In addition, new technologies to be implemented in the next three years in
those terminals will also be addressed.
Presentations:
- Pascal Huart (Cisco, France), Ruchir Dav� (Cisco, San Jose, CA): End-point characteristics and user perception
[ BIO: Huart | BIO: Dav� | ABSTRACT |
PRESENTATION ]
- Christian Hoene (University of T�bingen, Germany): An open-source softphone for musicians playing over IP
[ BIO
| ABSTRACT |
PRESENTATION ]
- Hans Gierlich (HEAD acoustics GmbH, Germany): Echo perception in wideband telecommunication scenarios: Comparison to E-Model's narrowband echo findings
[ BIO
| ABSTRACT
| PAPER |
PRESENTATION ]
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09:00 – 10:30 |
SESSION 5: Test methodologies: extensions, new parameters, test signals,
calibration
Coordinator: Slawek Zielinski (University of Surrey, UK)
[ BIO ]
Objectives: Foreseen applications for super wideband and full
band conversational codecs are not only speech based services but also mixed
contents or even music based services. Mixed content represents
advertisement, ring back tones, music-on-hold and even film trailers.
Adaptation of ACR and DCR methodologies to accommodate such signals was felt
difficult.
This session will address how quality assessment methodologies for stereo
and 3D signals and calibration signals for the sound reproduction system
used for testing have to be adapted to wider bandwidths. Moreover, questions
such as what is nominal level for stereo input signals, how to calibrate
stereo signals have to be solved. How to define sound pressure level for
stereo output signals will also be considered.
Presentations:
- Alexander Raake (Deutsche Telekom Laboratories, Germany):
Conversational speech quality of spatialized audio conferences
[ BIO
| ABSTRACT |
PRESENTATION]
- Thierry Etam� (France Telecom, France): Charaterization of current codecs degradations for subjective assessment of speech quality
[ BIO
| ABSTRACT |
PRESENTATION ]
- Yu Jiao (University of Surrey, UK): Towards consistent assessment of audio quality of systems with different available bandwidth
[ BIO
| ABSTRACT |
PRESENTATION ]
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10:30 – 11:00 |
Coffee break |
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11:00 – 12:30 |
Wrap-up session and conclusions
Coordinator: Jean-Yves Monfort (France Telecom, France)
[ BIO ]
[ PRESENTATIONS ] |
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