LUMINOS
Sonic Star Codes
by Darren Curtis
3 Tracks
1. Uritone / 2.Orium / 3.Luminos
Using the latest in digital and analoge synthesis for live Ambisonics - 6 speaker soundfield as part of the SubLuminal Project for Star Link Mission. Also rendered into stereo format.
Sacred Resonance for info:
www.sacredresonance.com.au
Click here for:
Sacred Resonance for info:
www.sacredresonance.com.au
Click here for:
AMBISONICS OVERVIEW:
Here's a useful, if slightly technical, description of Ambisonics from noted audio expert and former Audio Engineering Society President, Stanley Lipshitz:
"Ambisonics goes further than stereo in that what it does (to first order) is to sample the acoustic field in such a way that the combination of the signals from all the loudspeakers in the array produces ... a reconstruction of the original acoustic wave field (both travelling and standing wave components). If a listener puts his head in the sound field, because the wavefronts are similar to the original, the perception of directionality and space should correspond to the original too. It is a "wavefront reconstruction" scheme in the small. The ear signals (crosstalk and all) will be correct if the reconstructed wavefronts are correct. This is just like natural hearing. Increasing the number of loudspeakers in Ambisonics (each fed its correctly-decoded signal) increases the accuracy of the reconstruction and the region over which it holds up. The interaural arrival-time differences also correspond to natural hearing in Ambisonics."
"Ambisonics goes further than stereo in that what it does (to first order) is to sample the acoustic field in such a way that the combination of the signals from all the loudspeakers in the array produces ... a reconstruction of the original acoustic wave field (both travelling and standing wave components). If a listener puts his head in the sound field, because the wavefronts are similar to the original, the perception of directionality and space should correspond to the original too. It is a "wavefront reconstruction" scheme in the small. The ear signals (crosstalk and all) will be correct if the reconstructed wavefronts are correct. This is just like natural hearing. Increasing the number of loudspeakers in Ambisonics (each fed its correctly-decoded signal) increases the accuracy of the reconstruction and the region over which it holds up. The interaural arrival-time differences also correspond to natural hearing in Ambisonics."
- It provides full surround -- with height ("periphony") -- while requiring only four channels total - but many more can be used.
- The surround-sound image remains largely unaffected by listener position -- no "sweet spot"
- Images can appear anywhere, not solely in the speaker positions
- You can place the loudspeakers in convenient positions -- not necessarily a square
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