Speaker Characterization with MLSFs
Hugo Cordeiro,
Instituto Superior de Engenharia de Lisboa (ISEL) –
Abstract:
The work described in this paper concerns the analysis of an alternative feature for speaker characterization, in the context of speaker recognition: Line Spectrum Frequencies (LSF), but derived from mel-filter bank energies. This new feature, that we denominate mel-LSFs (MLSFs), shows similar performance comparing to MFCCs for male speakers, one of the most common feature found in speaker recognition, but for female speakers MLSFs performs better than MFCCs.
When combined with mel LSFs differences, MLSFs feature overcomes the performance of the MFCCs for male and female speakers, even with temporal delta, ?MFCCs, included. Performance is measured in the context of speaker verification, using EER and minimum HTER. Detection error threshold (DET) curves are also presented, as well as HTER curves.
The main objective of this study is to compare different features performances with a common framework, from what a standard support vector machine recogniser was developed.
Tests are based on the cellular component of the “2002 NIST Speaker Recognition Evaluation Corpus.
Date: 2006-Jun-16 Time: 15:30:00 Room: 336
For more information:
Upcoming Events
INESC Brussels HUB Winter Meeting 2023

This edition of the HUB Winter Meeting will be co-organised with Science Business and will take place on the 30 and 31 January, in Lisbon, at Instituto Superior Técnico, Department of Computer Science and Engineering.
Please see below a summary of the agenda, this will be updated on the INESC Brussels HUB website regularly (confirmed speakers and other relevant info). Places for onsite participation are limited so registration is mandatory. Online participants will be sent a ZOOM link for each specific session on the 27th January.
INESC Brussels HUB website: https://hub.inesc.pt/
Monday, 30 January
a) Digital Europe Programme & Chips Act: state of play and possibilities for INESC.
9h to 10h30 GMT
(Exclusive for INESC researchers and administrators).
b) Science Business: how can INESC tap into Science Business network, activities and communications tools.
(Exclusive for INESC researchers and administrators).
c) Networking Lunch (for all onsite participants).
d) Roundtable: From rhetoric to reality – Embedding international strategy in the DNA of research organisations.
(Closed-door, roundtable workshop, Chatham House rules, open to INESC researchers and administrators, external participants by invitation only).
e) Networking Dinner
(By invitation only – INESC researchers participating onsite in the event are elegible to join).
Tuesday, 31 January
f) Workshop: How they did it? Strategic positioning for structural success in Horizon Europe: a discussion of best practices.
(Exclusive for INESC researchers, administrators and international invited speakers).
g) The public consultation on European R&I Programmes: Towards FP10.
(Closed-door, roundtable workshop, Chatham House rules, open to INESC researchers and administrators, external participants by invitation only).
h) Networking Lunch (for all onsite participants).
i) Management Committee meeting (Directors and POB members)
The HUB Winter Meeting aims at bringing together researchers and administrators from the 5 INESC institutes, affiliated higher education institutions in Portugal and abroad, with key European and global players, to:
– Discuss key research and innovation issues at EU level.
– Inform institutional policy and strategy.
– Exchange best-practices about R&I management, career development and policy positioning.
– Promote, discuss and deliver vision, visibility, networking and impactful communication.
– Create, identify and deepen partnerships and collaboration opportunities for collaborative R&I.