search for: wxyuv

Josh Coalson wrote: > --- smoerk <smoerk@gmx.de> wrote: > >>i didn't find anything about tagging flac files as surround files. i >>think there should some possibility to tell the player how to play a >>multi-channel file (how to map the different channels to the speakers >>or if there some decode is needed, like for ambisonic files). > > > it

...t in coding 5.1 material with Vorbis esp as tarkin becomes more complete, so I've decided to take a break from pure ambisonic work to look into this. I've decided that the best (from a pure elegance and patent avoidance) way to handle this is to basically decode the 5.1 input into a WXY or WXYUV ambisonic signal, which can then be handled by the Vorbis Ambisonic support. To accomplish that I produced a model of an idealized 5.1 speaker arrangement (with pointsource massless speakers) and a simulated ambisonic microphone at the listening location. I then measured the ambisonic impulse resp...

...t in coding 5.1 material with Vorbis esp as tarkin becomes more complete, so I've decided to take a break from pure ambisonic work to look into this. I've decided that the best (from a pure elegance and patent avoidance) way to handle this is to basically decode the 5.1 input into a WXY or WXYUV ambisonic signal, which can then be handled by the Vorbis Ambisonic support. To accomplish that I produced a model of an idealized 5.1 speaker arrangement (with pointsource massless speakers) and a simulated ambisonic microphone at the listening location. I then measured the ambisonic impulse resp...

...code for "ambisonic, get 8-bit number of tracks from end of header," and then use the number of tracks to figure out the format. 1 W (kinda dumb way of doing monaural) 2 UHJ (stereo-compatable) 3 WXY (first order without height) 4 WXYZ (first order with height) 5 WXYUV (second order without height) 6 WXYUVW' (second order without height, mixed 1st/2nd order data) 9 WXYZRSTUV (second order with height) 10 WXYZRSTUVW' (second order with height, mixed 1st/2nd order data) 16 WXYZRSTUVKLMNOPQ (third order with height) (There can be no third...

...number of tracks from end of header," and then use > the number of tracks to figure out the format. > > 1 W (kinda dumb way of doing monaural) > 2 UHJ (stereo-compatable) > 3 WXY (first order without height) > 4 WXYZ (first order with height) > 5 WXYUV (second order without height) > 6 WXYUVW' (second order without height, mixed 1st/2nd order data) > 9 WXYZRSTUV (second order with height) > 10 WXYZRSTUVW' (second order with height, mixed 1st/2nd order data) > 16 WXYZRSTUVKLMNOPQ (third order with height) >...

...80 degrees out of phase with the back channels. (and all are +/-90 degrees out from the LFE channel to boot.) >> > I've decided that the best (from a pure elegance and patent avoidance) >> > way >> > to handle this is to basically decode the 5.1 input into a WXY or WXYUV >> > ambisonic signal, which can then be handled by the Vorbis Ambisonic >> > support. >> >> So U and V are the planar quadupole (m=+/-2) moments? I'm glad to hear >> you can get by with the same number of channels. > >They happen to fit nicely with the...