Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Fraunhofer IDMT at IBC 2013: New tools for an amazing sound

Fraunhofer IDMT will be presenting new, innovative tools for automated and intuitive recording, production, rendering, and analysis of audiovisual content at this year’s International Broadcasting Convention, taking place September 13th to 17th in Amsterdam.

Whether it is to make high-quality recordings, reproduce perfect 3D sound over headphones, or analyze digital content – the tools developed by Fraunhofer IDMT make for highly efficient processes and high sound quality when it comes to handling audiovisual content.

Intuitive identification of quality problems in audio recordings

Fraunhofer’s “Microphone Manager” allows fast and intuitive quality checks of sound recordings during live performances or in the studio. “When concerts are recorded, usually quite a lot of microphones are used. Identifying sound quality problems has always been a very time-consuming endeavor, as sound engineers sometimes need to overview and handle up to one-hundred audio channels on their mixing consoles. Using the Microphone Manager, this complicated and ardous process can now be substantially simplified. You simply instal a virtual listener at a selected position within the digital sound scene. This allows you to check all audio channels easily and localize sound problems very quickly”, says Christoph Sladeczek, head of the Virtual Acoustics group at Fraunhofer IDMT. Besides having the possibility to save and store the sound scene for later recordings or sound mixes, the Microphone Manager is also capable of producing semi-automated sound scenes from the microphone setup.

3D sound reproduction for headphones

New, innovative sound reproduction methods, such as wave field synthesis, allows the audience to virtually immerse into the sound and enjoy a highly realistic sound experience (in planetariums or during live performances, for example). To achieve this effect, a ring of loudspeakers is installed at the respective venue. Individual sound sources (the instruments played by the members of an orchestra, for example) are being recorded and the signals are then saved in an object oriented format, together with information about the sound sources’ position, volume level, and sound propagation direction. Until recently, listening to such recordings over headphones has had its limitations. But not anymore: Fraunhofer IDMT has developed “SpatialSound Headphone”, an interactive system that allows direction adequate 3D sound reproduction over headphones, based on the concept of audio objects. Unlike conventional surround sound technology, object oriented sound reproduction is not about saving headphones or loudspeaker signals.

Instead, these signals are being produced in real-time, allowing to create 3D sound scenes (from as many as 32 sound objects) and to edit their properties interactively. “This new tool allows to render object oriented sound recordings over headphones. Film directors, for example, now have the possibility to record 3D audio content, listen to it on the spot, check the sound quality, and make a first rough mix”, says Alejandro Gasull Ruiz, a project manager at Fraunhofer IDMT, who has been responsible for the development of this new technology.

Recognition of speech and music sequences in radio and TV programs

At the IBC 2013, Fraunhofer IDMT will also be presenting a new module of its “A/V Analyzing Toolbox”, which allows automatic recognition of speech, music, pieces of speech with background music, and silence in radio and TV programs. While this tool can be used for highly efficient content based search in radio and TV archives or as an add-on for sound identification systems, it could also be an extremely helpful instrument for copyright collecting agencies or copyright licensing service providers in their efforts to protect copyrights and detect copyright infringements. “The tariffs to be paid by the copyright collecting agencies are determined by the proportion of music in radio and TV programs.

Trying to quantify this proportion usually is extremely time-consuming, and the results of the analysis are mostly quite inaccurate, as audio content lists usually are reviewed randomly and manually. Our new tool helps facilitate this process substantially, making it possible to review huge audio catalogs and archives in a highly efficient fashion. Copyright collecting agencies will benefit from this by being able to calculate much more precisely than they are doing now”, says Dr. Uwe Kühhirt, head of the Audiovisual Systems group at Fraunhofer IDMT.

Efficient management of audiovisual content

Fraunhofer’s A/V Analyzing Toolbox consists of a number of modules for detailed analysis and efficient management of audiovisual content, ranging from automated error analysis of audio and video files to recognition and composition of single scenes and representative keyframes in video clips. Another feature allows recognition and evaluation of camera movements (such as panning or zooming) in films and videos. Semantic video analysis allows to categorize individual film sequences according to certain visual concepts (such as specific landscapes or times of the day), making it much easier to search for and find specific sequences in huge film archives.

Fraunhofer IDMT will be presenting its latest developments at this year’s IBC2013 at booth 8.B 80, hall 8.

About Fraunhofer IDMT

The Fraunhofer Institute for Digital Media Technology IDMT is doing applied research in the field of audiovisual media. The Institute is known as a competent partner of industry when it comes to developing groundbreaking technologies for the digital media domain. Together with its contracting partners Fraunhofer IDMT develops cutting-edge solutions consistently designed to meet user requirements and expectations. At its headquarters in Ilmenau and its branches in Erfurt and Oldenburg Fraunhofer IDMT employs over one-hundred people working on the Institute’s research portfolio.

Press and Public Relations

Stefanie Miethbauer
Ehrenbergstraße 31
98693 Ilmenau
Phone +49 3677 467-331
Fax +49 3677 467-467
Weitere Informationen:

Julia Hallebach | Fraunhofer-Institut
Further information:

More articles from Trade Fair News:

nachricht Creating living spaces for people: The »Fraunhofer CityLaboratory« at BAU 2017
14.10.2016 | Fraunhofer-Gesellschaft

nachricht Reducing Weight through Laser-assisted Material Processing in Automobile Construction
13.10.2016 | Fraunhofer-Institut für Lasertechnik ILT

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Etching Microstructures with Lasers

Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.

This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...

Im Focus: Light-driven atomic rotations excite magnetic waves

Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion

Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Greater Range and Longer Lifetime

26.10.2016 | Power and Electrical Engineering

VDI presents International Bionic Award of the Schauenburg Foundation

26.10.2016 | Awards Funding

3-D-printed magnets

26.10.2016 | Power and Electrical Engineering

More VideoLinks >>>