Jörg Ullmann - Kontakt (Universität Paderborn)

Nachrichtentechnik (NT)

Laboringenieur - Mitarbeiter - Administrator, Hard- und Softwareentwickler

VCard

Telefon:

+49 5251 60-3676

Fax:

+49 5251 60-3625

E-Mail:

ullmann(at)nt.upb(dot)de

Büro:

P7.2.05

Sprechzeiten:

9-11 Uhr (Mo.-Fr.) 13:30-15 Uhr (Mo. - Do.)

Besucher:

Pohlweg 47-49
33098 Paderborn

08/2008 - heute

Administrator, Hard- und Softwareentwickler

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2021

Open Range Pitch Tracking for Carrier Frequency Difference Estimation from HF Transmitted Speech

J. Schmalenstroeer, J. Heitkaemper, J. Ullmann, R. Haeb-Umbach, in: 29th European Signal Processing Conference (EUSIPCO), 2021, pp. 1-5

2018

MARVELO - A Framework for Signal Processing in Wireless Acoustic Sensor Networks

H. Afifi, J. Schmalenstroeer, J. Ullmann, R. Haeb-Umbach, H. Karl, in: Speech Communication; 13th ITG-Symposium, 2018, pp. 1-5

Abstract

Signal processing in WASNs is based on a software framework for hosting the algorithms as well as on a set of wireless connected devices representing the hardware. Each of the nodes contributes memory, processing power, communication bandwidth and some sensor information for the tasks to be solved on the network. In this paper we present our MARVELO framework for distributed signal processing. It is intended for transforming existing centralized implementations into distributed versions. To this end, the software only needs a block-oriented implementation, which MARVELO picks-up and distributes on the network. Additionally, our sensor node hardware and the audio interfaces responsible for multi-channel recordings are presented.

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