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Goodwin (2009) has suggested a slanted octahedron with separate front center (which he calls 3D7.1) [17] as an alternative way of using 7.1 systems to achieve with-height Ambisonic reproduction in games, and to allow reasonably accurate native 5.1 playback. An OpenAL game audio backend and decoder for this setup is commercially available. [18]
Ambisonic Surround Sound FAQ (Sections 17 and 18 for hardware decoders) Ambisonia website Bruce Wiggins's WAD decoders for 4.0, 6.0 and 8.0 are nearly Classic Ambisonic Decoders and easy to use plugins for Windows Media Player. B2X Plug-Ins B2D, B2G and B2Stereo software decoders, in VST and Audio Unit formats, for Mac OS X
Naive single-band in-phase decoder for a square loudspeaker layout. A basic Ambisonic decoder is very similar to a set of virtual microphones. For perfectly regular layouts, a simplified decoder can be generated by pointing a virtual cardioid microphone in the direction of each speaker. Here is a square:
The Trifield process is a form of audio rendering in which a conventional two-channel signal is decoded (using Ambisonic principles) to an additional number of loudspeakers, typically three in the form of a Left-Centre-Right front stage. The technique provides significant additional image stability, especially when the listener is moving or off ...
A popular and unfortunate misconception is that Ambisonic recordings can only be made with the SFM, and as a result there is a widespread, and erroneous, belief that Ambisonics can only be used to capture a live acoustic event (something that accounts for a tiny proportion of modern commercial recordings, the vast majority of which are built up in the studio and mixed from multitrack).
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Matrix decoding is an audio technology where a small number of discrete audio channels (e.g., 2) are decoded into a larger number of channels on play back (e.g., 5). The channels are generally, but not always, arranged for transmission or recording by an encoder, and decoded for playback by a decoder.
1. Pizza. Why, of course, it would be pizza, and not steamed broccoli, because apparently, everything that tastes good comes with a catch. Pizza, one of — if not the — most universally loved ...