News

Janis Heldmann receives 3rd Best Paper Award

The results of the study can be directly used to design smoother artificial reverberators and improve sound quality in applications such as music production and virtual reality.
Janis Heldmann (left) received 3rd Best Paper Award.
Janis Heldmann (left) and thesis advisor Sebastian J. Schlecht, Professor of Practice.

Janis Heldmann, who is graduating from the Acoustics and Audio Technology major this autumn, received the 3rd Best Paper Award at the International Conference on Digital Audio Effects (DAFx) in Vienna, Austria. DAFx is a three-day annual workshop and the prime venue for presenting novel audio and music processing developments related to artistic technology.

The paper titled 'The Role of Modal Excitation in Colorless Reverberation' studies perceptual effects of unevenly distributed modal energy in room acoustics reverberation. The late reverberation, which results from repeated reflections from walls of a room overlapping chaotically, can also be modeled as a superposition of thousands of resonances called room modes. While earlier studies have focussed on how room modes decay over time, the present paper studies how the total sound energy influences the perceptual quality of the reverberation.

The results of this study can be directly used to design smoother artificial reverberators and improve sound quality in applications such as music production and virtual reality. You can listen to a selection of sound samples on this webpage

The motivation of this study, which continued into Heldmann's master's thesis, was based on a combined interest of complex algebraic systems apparent in modern artificial reverberators, and how humans perceive similar sounds as significantly different from each other.

In his approach, he conducted listening tests of carefully tailored sound samples and those generated from novel reverberators to draw connections between mode perception and total sound energy.

This work has been advised by Sebastian J. Schlecht, Professor of Practice for Sound in VR of Aalto Acoustics Lab and Media Lab.

You can read the article here: The Role of Modal Excitation in Colorless Reverberation

3rd Best Paper Award
  • Published:
  • Updated:
Share
URL copied!

Read more news

Professor Riikka Puurunen, Professor Patrick Rinke and IT Application Owner Lara Ejtehadian holding sunflowers and diplomas
Awards and Recognition, Campus, Research & Art Published:

Aalto Open Science Award ceremony brought together Aaltonians to discuss open science

Last week we gathered at A Grid to celebrate the awardees of the Aalto Open Science Award 2023 and discuss open science matters with the Aalto community.
Apulaisprofessori Viktar Asadchy. Kuva: Aalto-yliopisto / Jaakko Kahilaniemi
Awards and Recognition Published:

Viktar Asadchy receives Young Scientist Award

The Finnish Foundation for Technology Promotion awarded Assistant Professor Viktar Asadchy with the Young Scientist 2024 Award.
Photo of female researcher on bright green background
Awards and Recognition, Research & Art Published:

"Keep an open mind and step outside of your comfort zone"

Read what double award winner Kukka-Emilia Huhtinen wants to share about her doctoral studies in theoretical physics
Photo of young man next to graphic with red arrows
Awards and Recognition, Research & Art Published:

"My PhD was great from every single point of view"

Read how Viliam Vaňo, Aalto thesis award winner, experienced his doctoral studies