ITU-T Workshop
on
“Interactions of Voiceband Signal
Processing Functions and their
End-to-End Coordination”
(Germantown, Maryland, USA, 21 April 2010)
SG16/WP1
Network signal processing and
voiceband terminals
Harald Kullmann
Germantown, Maryland, USA, 21 April 2010
International
Telecommunication
Union
Overview of WP1/16
Question 14/16 – Voiceband modems and facsimile terminals
and protocols: specification, performance evaluation and
interworking with NGN
Rapporteur: Keith CHU, Teridian Semiconductor Corporation
Question 15/16 – Voice gateway signal processing functions and
circuit multiplication equipment / systems
Rapporteur: Dominic HO, Ericsson
Question 16/16 – Speech enhancement functions in signal
processing network equipment (SPNE)
Rapporteur: Bob REEVES, BT
Question 18/16 – Interaction aspects of signal processing
network equipment (SPNE)
Rapporteur: Harald KULLMANN, Deutsche Telekom
Germantown, Maryland, USA, 21 April 2010
International
Telecommunication
Union
2
Overview on work of WP1/16
Question 14/16
Motivation: This Question brings together all the aspects of voice
band dial up access and facsimile transmission.
Workprogamm
Revision of T.38: Procedures for real-time Group 3 facsimile
communication over IP networks; V.150.1:Modem-over-IP
networks; Procedures for the end-to-end connection of V-series
DCEs; V.152: Procedures for supporting voice-band data over IP
networks
Question 15/16
Motivation: This Question deals with the specification of voice
gateway equipment. Circuit switched systems and equipment
have traditionally transported voice and voiceband traffic in
international networks.
Workprogamm
Draft new Rec. G.IP2IP: Signal processing functionality and
performance of an IP-to-IP voice gateway optimised for the
transport of voice and voiceband data; Revision of G.799.1:
Functionality and interface specifications for GSTN transport
network equipment for Interconnecting GSTN and IP Networks
Germantown, Maryland, USA, 21 April 2010
International
Telecommunication
Union
3
Overview on work of WP1/16
Question 16/16
Motivation:This Question deals with network-based speech
enhancement devices, including electrical network echo control,
acoustic network echo control, automatic level control devices,
and speech enhancement devices.
Workprogamm
Revision of G.168: Digital network echo cancellers including
embedded echo cancellers; G.160: Voice Enhancement Devices;
G.169: Automatic level control devices
Question 18/16
Motivation: This Question deals a) the logic and protocol
requirements needed for the control and coordination of signal
processing functionalities in the networks and terminals; b) with
the study of interaction of SPNE, between different SPNE, between
SPNE and terminals, and between SPNE and transmission
systems; and c) with the consistency of Recommendations
developed by Questions 15 and 16/16 in the area of SPNE.
Workprogamm
Draft new Rec. G.SPNE: Information and requirements for Signal
Processing Network Equipment (SPNE); Revision of
G.799.2:Mechanism for dynamic coordination of signal processing
functions; G.161: Interaction Aspects of SPNE
International
Germantown, Maryland, USA, 21 April 2010
Telecommunication
Union
4
Overview on work of WP1/16
G.160
G.168
G.169
G.799.1
SPF/SPNE
G.165
G.763
G.767
G.768
G.766
G.769
Interworking
G.161
G.799.2
V.3x
Q.115.x
Control and
Coordination
G.776.1
Germantown, Maryland, USA, 21 April 2010
V.2x
Voice Band Data
T.3x
T.2x
V.1x
International
Telecommunication
Union
5
ITU-T Workshop
on
“Interactions of Voiceband Signal Processing
Functions and their End-to-End Coordination”
Objectives
Discussion on topics related to Signals Processing Functions in
terminals, networks, end-to-end coordination and implementation
aspects
Targets
This WS aims at covering the topics related to the identification of
follow-up actions to application areas and implementation aspects
and the verification of existing and in-progress standards and the
identification of the need for filling gaps.
Germantown, Maryland, USA, 21 April 2010
International
Telecommunication
Union
6
Workprogramm of the WS
09:30 – 09:45
09:45 – 10:30
Welcome from Mr. Warren Karapetian and
Mr. Harald Kullmann
Introduction of relevant ITU-T work from
the Rapporteurs
Session 1:
Objectives: This session aims at covering
the topics related to Speech Quality in
modern Network-Terminal Configurations.
Speaker: H.W. Gierlich, HEAD acoustics
10:30 – 11:00
Coffee break
11:00 – 11:45
Session 2:
Objectives: This session aims at covering
the topics related to definition and
coordination of Signal Processing
Functions for telephone connections
involving automotive speakerphones.
Speaker: Scott Pennock, QNX
11:45 – 12:30
Session 3:
Objectives: This session aims at covering
the topics related to using subsystem
performance parameters to optimize endto-end performance.
Speaker: Scott Pennock, QNX
Germantown, Maryland, USA, 21 April 2010
12:30 – 14:00
14:00 – 14:45
Lunch break
Session 4:
Objectives: This session aims at covering
the topics related to interaction aspects of
voiceband signal processing with the focus
on voiceband data modems and network
echo cancellers.
Speaker: Bob Reeves, BT Innovate &
Design
14:45 - 15:30
Session 5:
Objectives: This session aims at covering
the topics related to Recommendations
G.799.1 and G.799.2.
Speaker: Dominic Ho, Ericsson
16:00 – 16:15
Coffee break
16:15 – 17:30
Session 6:
This session aims at covering the topics
related to the identification of follow-up
actions to application areas and
implementation aspects and the verification
of existing and in-progress standards and
the identification of the need for filling gaps.
International
Telecommunication
Union
7
THANK YOU FOR
YOUR
ATTENTION !
Email: Harald.Kullmann@telekom.de
Special thanks to Texas Instruments and Mr. Warren Karapetian
for the hosting and organization of the workshop
in Germantown, Maryland, USA
Germantown, Maryland, USA, 21 April 2010
International
Telecommunication
Union
8