akutek.info

The www center for search, research and free sharing in acoustics

Welcome to the akuTEK research site.

Below is a list of akuTEK research projects and fields. To get more information about topics, activity and status, follow the links below. Make sure to keep up with latest changes.

You are invited to contribute to the akuTEK research projects. If you have a contribution, either original or by a link to free, additional information on the www, please send by mail. You may also suggest new akuTEK research projects.

akuTEK research

Computational acoustics

Methods for computer assisted prediction of acoustics is very important to research in the field of room acoustics, and for development and design of new performance spaces. Computational capacity in computers has increased since Krokstad et al started out in the 1960’s, but so have our demands.

Concert hall acoustics

This field has over the past century grown to become the Queen of room acoustics.

Diffusivity—its significance to perceived sound quality

The significance of diffusivity to perceived sound quality is widely recognized, but there seems to be even more to reveal. Paper was presented at BNAM 2006. The opposites of diffusivity are echoes, modes and false localizations or  image shifts (link to 3MB pdf-document)

Dynamic Directivity of musical instruments
The directional pattern of radiation from musical instruments may not be as static as we thought.

Ensemble Acoustics
Whenever acousticians are introduced to a room or a stage, clapping their hands or shouting, they are testing the soloist acoustics. Suddenly, they may start judging the acoustic conditions for an ensemble of any size. How can they do this?

Listening aspects related to room acoustical effects on music
A more detailed description of listening aspects, their significance to the perception of music in a room acoustical environment, and their possible interrelations are pursued. 

Music Room Acoustics
This topic emerged as a response to the need to view room acoustics for music rehearsal and music performance of different ensemble sizes as a whole.

Performers perception of own voice or instrument

It is a common experience that people find recordings of their own voice strange and weak, missing the low frequency emphasis typically perceived by one self.

Prediction of echoes, and flutter-echoes

Echoes in performance spaces can be very disturbing and hard to cure. They are among the prominent sound effects that are important to predict during design.

Reflector array and orchestra canopy design
akuTEK investigates several features of reflector arrays and orchestra canopies, to gain knowledge on design that provides adequate reflections. Balance, diffusivity and frequency range are among the essentials.

Rehearsal room acoustics

What are the significant acoustic properties of a good rehearsal room?

Reflecting Disc - and the Equivalent Dipole Source

Small Room Acoustics
Wherever modes have a static effect on room acoustics

Source Radiation and Directivity of musical instruments - how to deal with it?

Directivity of musical instruments and its significance to sound quality as perceived by the audience has been investigated since late 60-s.

Speech Acoustics

Speech intelligibility— which acoustical and architectural factors make a difference, and how can it be predicted and measured?

Stage acoustics, support and mutual hearing in ensemble

There are still many topics to investigate in this field. Some say it has only just begun. Orchestra canopies are often called for, but can they always be justified?

Stochastic nature of Room Acoustics

Voice Acoustics
Corresponding to speech and singing, voice acoustics may be divided into Speech acoustics and Singing acoustics.

 

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