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Spatial audio conferencing system
The Journal of the Acoustical Society of America, 2010An audio conferencing system includes sending a signal of a sound at a sound location to a listening location. The system further includes establishing a relationship between a virtual listening location and a virtual sound location. The system processes the signal to provide a sound at the listening location seeming to have an analogous relationship ...
Norman Paul Jouppi, Subramoniam N. Iyer
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2014
Complementary to non-spatialized signals and their transmission, this chapter gives an overview of the quality of rendering methods that create spatial sound. Common methods and the underlying concept of a virtual sound scene are introduced and the herewith associated quality features.
Matthias Frank +3 more
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Complementary to non-spatialized signals and their transmission, this chapter gives an overview of the quality of rendering methods that create spatial sound. Common methods and the underlying concept of a virtual sound scene are introduced and the herewith associated quality features.
Matthias Frank +3 more
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Audio spatial equalization system
The Journal of the Acoustical Society of America, 1992A television receiver includes a stereo amplifier having separate bass, treble and gain controls, for driving left and right channel loudspeakers. Separate bandpass circuits supply portions of the respective channel signals for phase inversion and feed back to respective summation circuits in the outputs of the corresponding opposite channel to produce
Mark A. Scholten, Stanley R. Zachary
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Audio Spatial Environment Engine
The Journal of the Acoustical Society of America, 2011An audio spatial environment engine is provided for converting between different formats of audio data. The audio spatial environment engine (100) allows for flexible conversion between N-channel data and M-channel data and conversion from M-channel data back to N’-channel data, where N, M, and N’ are integers and where N is not necessarily equal to N’.
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Spatial audio for telepresence
The Journal of the Acoustical Society of America, 1999Developments in communications technology, such as audio–visual conferencing and telepresence, have created a new set of demands for audio delivery systems. In the past, a telephone handset, with its limited transducers, was adequate for simple spoken communication; however, future multiuser communication systems and immersive machine interfaces will ...
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Spatial audio cues based surveillance audio attention model
2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010In this paper, we propose a bottom-up audio attention model based on spatial audio cues for unsupervised event detecting in stereo audio surveillance. Firstly, the spatial audio parameter Interaural Level Difference (ILD) is extracted to calculate and represent the attention events, which are caused by rapid moving sound source.
Bo Hang, Ruimin Hu
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Audio channel spatial translation
The Journal of the Acoustical Society of America, 2010M audio input channels, each associated with a spatial direction, are translated to N audio output channels, each associated with a spatial direction, wherein M and N are positive whole integers, M is three or more, and N is three or more, by deriving the N audio output channels from the M audio input channels, wherein one or more of the M audio input ...
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Audio-visual event classification via spatial-temporal-audio words
2008 19th International Conference on Pattern Recognition, 2008In this paper, we propose a generative model-based approach for audio-visual event classification. This approach is based on a new unsupervised learning method using an extended probabilistic latent semantic analysis (pLSA) model. We represent each video clip as a collection of spatial-temporal-audio words, which are generated by fusing the visual and ...
null Yu Cao +4 more
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Spatial audio - Artificial reverberation
2023Artificial reverberation consists of adding to a sound signal an effect that emulates the acoustical reverberation of a space. This technique is an essential component in the fields of audiovisual production, virtual reality, or video games, since it contributes to the creation of a convincing and immersive sound space.
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Many sounds artists are now producing their work in multi-channel digital audio, utilizing powerful audio software in very fast computers, and storing sound files on large hard drives. Some works will be played in public performance directly from computer, where multi-channel sound cards are able to deliver multiple high fidelity audio streams ...
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