Abstract:
The authors discuss immersive audio systems and the signal processing issues that pertain to the acquisition and subsequent rendering of 3D sound fields over loudspeakers...Show MoreMetadata
Abstract:
The authors discuss immersive audio systems and the signal processing issues that pertain to the acquisition and subsequent rendering of 3D sound fields over loudspeakers. On the acquisition side, recent advances in statistical methods for achieving acoustical arrays in audio applications are reviewed. Classical array signal processing addresses two major aspects of spatial filtering, namely localization of a signal of interest, and adaptation of the spatial response of an array of sensors to achieve steering in a given direction. The achieved spatial focusing in the direction of interest makes array signal processing a necessary component in immersive sound acquisition systems. On the rendering side, 3D audio signal processing methods are described that allow rendering of virtual sources around the listener using only two loudspeakers. Finally, the authors discuss the commercial implications of audio DSP.
Published in: IEEE Signal Processing Magazine ( Volume: 16, Issue: 1, January 1999)
DOI: 10.1109/79.743868
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- IEEE Keywords
- Index Terms
- Signal Processing ,
- Transfer Function ,
- Listening ,
- Reverberation ,
- Environmental Noise ,
- Loudspeaker ,
- Sensor Array ,
- Noise Suppression ,
- Sound Source ,
- Sound Localization ,
- Acoustic Environment ,
- Sound Field ,
- Virtual Source ,
- Azimuth Plane ,
- Array Processing ,
- Microphone Array ,
- Non-minimum Phase ,
- Speech Acquisition ,
- Time Delay Estimation ,
- Acoustic Channel ,
- Sound Processor ,
- Noise Components ,
- Signal Of Interest ,
- Mixed Phase ,
- Bell Labs ,
- Phase Change ,
- Dynamic Range ,
- Ear Canal ,
- 3D Space ,
- Monaural
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Signal Processing ,
- Transfer Function ,
- Listening ,
- Reverberation ,
- Environmental Noise ,
- Loudspeaker ,
- Sensor Array ,
- Noise Suppression ,
- Sound Source ,
- Sound Localization ,
- Acoustic Environment ,
- Sound Field ,
- Virtual Source ,
- Azimuth Plane ,
- Array Processing ,
- Microphone Array ,
- Non-minimum Phase ,
- Speech Acquisition ,
- Time Delay Estimation ,
- Acoustic Channel ,
- Sound Processor ,
- Noise Components ,
- Signal Of Interest ,
- Mixed Phase ,
- Bell Labs ,
- Phase Change ,
- Dynamic Range ,
- Ear Canal ,
- 3D Space ,
- Monaural