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

TFiF-kandityön palkinnon voittaneet opiskelijat.
Honoured, Studies Published:

Three Aalto students were awarded for the best bachelor's thesis in Swedish in the field of technology

TFiF's awards went to Linda Autio, Isak Jungerstam and Fanny Hakala.
Kestävyysraportointikilpailun 2022 voittajat
Cooperation, Honoured Published:

Finland’s top sustainability reports are of high quality

Stora Enso won the overall competition for the third time
Flowers / Aalto University
Honoured, Studies Published:

Dean of the School of Business awarded successful students

Dean’s List Scholarships in Academic Year 2021–2022 were given to 28 students
Mahafugur Rahman. Picture: Jari Härkönene
Honoured, Research & Art Published:

F. M. Mahafugur Rahman receives TEK’s and TFiF’s best dissertation award

In his dissertation, Aalto University alumnus presented real-time control algorithms for next-generation renewable energy production