• Corpus ID: 1635978

Controlling the impulse responses and the spatial variability in digital loudspeaker-room correction

  title={Controlling the impulse responses and the spatial variability in digital loudspeaker-room correction},
  author={Lars-Johan Br{\"a}nnmark and Mikael Sternad},
Controlling the impulse responses and the spatial variability in digital loudspeaker-room correction 

Review of automotive audio technologies: immersive audio case study

Current automotive audio technologies and researches are reviewed, object based audio application on automotive platform is evaluated, and Objects based audio technologies are state of the art in home audio and theatres and next step in automotive multimedia.



Equalization of Loudspeaker Drive Units Considering Both On- and Off-Axis Responses

Digital filters designed to equalize individual loudspeaker drive units are described. Results from computer simulation and measurement of a real-time implementation are presented

Multiple-Point Equalization in a Room Using Adaptive Digital Filters

A method is presented for designing an equalization filter for a sound-reproduction system by adjusting the filter coefficients to minimize the sum of the squares of the errors between the equalized

Sound Field Control Using a Limited Number of Loudspeakers

It is shown that the proposed framework provides a unified solution to the problem of equalizer design, crossover design, delay and level calibration, sum-response optimization, and up-mixing.

About room response equalization and dereverberation

The terminology and goals of sound reproduction in rooms by signal processing techniques are discussed, some recent approaches of these techniques in practical cases are compared, and future challenges are pointed out.

Compensation of Loudspeaker–Room Responses in a Robust MIMO Control Framework

The new approach, which is a generalization of an earlier single-channel approach by the authors, is found to reduce the average reproduction error and the transfer function variability over a region in space.

Three-Dimensional Surround Sound Systems Based on Spherical Harmonics

The theory of recording and reproduction of three-dimensional sound fields based on spherical harmonics is reviewed and extended. Free-field, sphere, and general recording arrays are reviewed, and

Real-Time Room Equalization Based on Complex Smoothing: Robustness Results

The aim of this study is to investigate the robustness of room acoustics real-time equalization using inverse filters derived from the Complex Smoothing of the Transfer Function using perceptual

Errors in Real-Time Room Acoustics Dereverberation*

It is shown that dereverberation based on complex smoothing is immune to such errors, and discrepancy between simulated and real-time tests is examined.

Equalization in an acoustic reverberant environment: robustness results

It is shown that due to the variations of the transfer function from point to point in a room, even small changes in the source or microphone position can cause large degradations in the equalized room response.

Symmetric Loudspeaker-Room Equalization Utilizing a Pairwise Channel Similarity Criterion

The filter design framework introduced is based on MIMO feedforward control and has the aim of pairwise equalization of two audio channels and incorporates two features that represent the similarity requirement and the difference between the compensated RTFs of the two channels.