Christof Faller

Cette personne n’est plus à l’EPFL

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Publications associées (39)

Method and Device for Removing Echo in an Audio Signal

Christof Faller

Acoustic echo control and noise suppression is an important part of any "handsfree" telecommunication system, such as telephony or audio or video conferencing systems. Bandwidth and computational complexity constraints have prevented that stereo or multi-c ...

2010

Baffled Circular Loudspeaker Array With Broadband High Directivity

Martin Vetterli, Mihailo Kolundzija, Christof Faller

Super-directional loudspeaker arrays can be used to achieve high directivity in a limited low-frequency range. As opposed to microphone arrays, the distance between the loudspeakers has to be relatively large, resulting in aliasing starting at relatively l ...

2010

Feeling in control of your footsteps: Conscious gait monitoring and the auditory consequences of footsteps

Martin Vetterli, Olaf Blanke, Christof Faller, Fritz Menzer, Pär Halje

A fundamental aspect of the “I” of conscious experience is that the self is experienced as a single coherent representation of the entire, spatially situated body. The purpose of the present study was to investigate agency for the entire body. We provided ...

2010

Method And Device For Removing Echo In A Multi-Channel Audio Signal

Christof Faller

2008

Sound Field Analysis Along a Circle and its Application to HRTF Interpolation

Martin Vetterli, Christof Faller, Luciano Sbaiz, Thibaut Ajdler

The sampling and interpolation of a sound field in two and three dimensions along a circle is discussed. The Fourier domain representation of the sound field is used, and an angular sampling theorem is developed for the sampling of the sound field along a ...

2008

Method to generate multi-channel audio signals from stereo signals

Christof Faller

A perceptually motivated spatial decomposition for two-channel stereo audio signals, capturing the information about the virtual sound stage, is proposed. The spatial decomposition allows to re-synthesize audio signals for playback over other sound systems ...

2007

Parametric joint-coding of audio sources

Christof Faller

The following coding scenario is addressed: A number of audio source signals need to be transmitted or stored for the purpose of mixing wave field synthesis, multi channel surround, or stereo signals after decoding the source signals. The proposed techniqu ...

2007

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Christof Faller

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Method and Device for Removing Echo in an Audio Signal

Baffled Circular Loudspeaker Array With Broadband High Directivity

Feeling in control of your footsteps: Conscious gait monitoring and the auditory consequences of footsteps

Method And Device For Removing Echo In A Multi-Channel Audio Signal

Sound Field Analysis Along a Circle and its Application to HRTF Interpolation

Method to generate multi-channel audio signals from stereo signals

Parametric joint-coding of audio sources

Recording of Acoustical Concerts Using a Soundfield Microphone

Matrix Surround Revisited

MPEG Surround - The ISO/MPEG Standard for Efficient and Compatible Multi-Channel Audio Coding

Method and Device for Removing Echo in an Audio Signal

Baffled Circular Loudspeaker Array With Broadband High Directivity

Feeling in control of your footsteps: Conscious gait monitoring and the auditory consequences of footsteps

Method And Device For Removing Echo In A Multi-Channel Audio Signal

Sound Field Analysis Along a Circle and its Application to HRTF Interpolation

Method to generate multi-channel audio signals from stereo signals

Parametric joint-coding of audio sources

Recording of Acoustical Concerts Using a Soundfield Microphone

Matrix Surround Revisited

MPEG Surround - The ISO/MPEG Standard for Efficient and Compatible Multi-Channel Audio Coding